Está marcada para dia 22 de julho, terça-feira, a inauguração, no Rio de Janeiro, do Orla Digital - um projeto que vai oferecer conexão gratuita à internet na área a céu aberto da Praia de Copacabana, com coordenação técnica da Universidade Federal do Rio de Janeiro.

Em princípio, é uma boa idéia. Mas falta conhecer alguns detalhes, como o tipo de autenticação que será utilizado (se houver) e se haverá algum registro ou exame das conexões realizadas (questão de privacidade).

Fico curioso para saber quem se aventuraria a abrir seu notebook ao ar livre - o mais provável é que as pessoas usem seus celulares com Wi-Fi ou, no máximo, um discreto Eee PC.

E, diante de aparelhinhos tão delicados à mercê dos inevitáveis perigos da praia, já imagino que "entrou areia" vai ser mais que uma mera expressão...

At just 3.2 ounces, the surprisingly light headset was comfortable throughout mostly sedentary, multihour listening sessions and didn't dislodge once during a 40-minute jog. However, you should note that the headband is not adjustable, so the 'phones won't fit everyone as well as they fit us. Although you wouldn't want to regularly run while holding the bulky iPod, the wireless capability lets you stash it in a treadmill's accessory holder or even leave it in a nearby gym bag during your workout. The headset is appropriately easy to operate without requiring you to look at its controls. The outside of the right earpiece hosts four keys (volume up, volume down, next track, and previous track) that are intuitively arrayed around a large, circular play/pause button, and the volume controls have slight indents so that you can distinguish them by feel from the track-skip keys. (link)

With a rather hefty price tag of $300, the company's Ety8s can only be described as premium Bluetooth headphones. They come in two models: the model reviewed here comes with a Bluetooth transmitter/dongle that attaches to the bottom of your iPod, while a second package contains only the wireless 'buds themselves (if you already have a device with built-in Bluetooth) for $100 less. Etymotic says the Ety8s are compatible with devices "supporting Bluetooth specification 1.1 and higher, as well as A2DP and AVRCP for profiles for stereo listening," and have a wireless range of about 30 feet. They come with a leather storage case and custom USB cable to juice up the headphones' internal rechargeable battery, which delivers about seven hours of power. (link)

(Diedit Oleh: Syafran Nasution, 2008 )

Ini merupakan sebuah slogan kartu kredit VISA yang berbunyi "everywhere you want to be" yang kira-kira artinya "ada dimanapun anda inginkan". Jaringan wireless anda pun juga dapat ada dimanapun anda inginkan. Tapi tidak sedikit dari anda yang tinggal pada sebuah perkemahan, yang mana hal ini tidaklah mungkin untuk mengakses internet.

Wireless Distribution System, atau WDS, adalah sebuah sistem murah dan mudah untuk memperluas jangkauan jaringan wireless anda. Disebut murah, karena anda dapat men-set sepasang sub-router seharga $60 dengan firmware gratis dan bebas didownload yaitu DD-WRT, misalnya router Linksys WRT54GL (hanya $56 saat ini, cek harga di Amazon.com) dan router lainyang kompatibel. Hal ini sangatlah mudah, karena anda hanya perlu menerapkan beberapa setingan konfigurasi ke router anda, yaitu membuat sebuah repeater bridge untuk memperluas jaringan wireless anda.

Dalam rumah khayalan saya di atas, "router 1" terkoneksi ke layanan broadband (broadband service). Router tersebut menghantarkan sinyal wireless yang kuat ke suatu PC pada lantai yang sama. Tetapi seharusnya untuk bangunan dan ukuran rumah tersebut, sinyalnya melemah pada tangga turun secara cepat. Maka saya set sebuah router yang dikonfigurasi sebagai WDS pada tangga turun untukmenaikkan sinyal bagi penghuni lantai bawah.

Pada lantai dua, "router 2" bertindak sebagai klien wireless dan sebuah akses poin untuk menerima dan memancarkan kembali sinyal dari router 1, kata kuncinya menjadi memancarkan lagi. Ini merupakan tambahan biaya untuk WDS -- klien-klien yang berasosiasi dengan router 2 hanya kelihatan setengah bandwith seperti berasosiasi dengan router 1. Untuk jaringan wrireless G dimana secara primer menggunakan eksternal broadband, menunjukkan sdikit pengorbanan, karena secara khusus koneksi broadband U.S. broadband harus lebih lambat dari wireless LAN, pun pada setengah kecepatan.

Anda dapat menambahkan tiga, empat dan lebih banyak router untuk memperluas jangkauan WDS bila diperlukan -- tetapi masing-masingnya kembali membagi bandwidth setengahnya terhadap kliennya.

Aturan dan Kaidah WDS

Ada beberapa kaidah untuk mengimplementasikan jaringan yang berfungsi sebagai WDS. Untuk kompatibilitas yang optimal, anda harus menggunakan router yang sama seluruhnya -- atau, pada kasus ini, firmware yang sama, yaitu menggunakan firmware DD-WRT v23 pada kedua router tersebut.

Kedua router harus berkomunikasi pada channel wireless yang sama. Kedua router harus dikonfigurasi pada jenis jaringan 802.11 yang sama, apakah standar B (11Mbps), mixed B/G (11/54 Mbps), atau G (54 Mbps). Jaringan standar G terpisah dari yang lain harus menggunakan channel 1, 6, atau 11.

Bila anda menggunakan sekuriti enkripsi WPA, anda harus men-set kedua router sebagai jaringan G yang terpisah dari yang lain. DD-WRT tidak mendukung enkripsi WPA2 pada WDS. Sekuriti WEP dapat digunakan pada jaringan dengan dukungan standar B.

WPA security juga memerlukan menetapkan SSID yang identik bagi kedua router tersebut Bila menggunakan sekuriti WEP atau tanpa sekuriti, anda dapat pilih untuk menetapkan SSID yang berbeda terhadap masing-masing router. Anda dapat mengendalikan lebih banyak melalui AP yang menghubungkan klien-klien anda ke masing-masingnya yang memiliki SSID berbeda -- pengatur beberapa klien, termasuk konfigurasi Wireless Zero Configuration Windows XP, bukan AP yang tidak mendua yang berbagi koneksi dengan SSID yang sama dan mungkin tidak selalu menjelajahi dengan sinyal kuat.

Yang Perlu Anda Ketahui…

Sebelum menyelami lebih dalam dan mengganti setingan firmware router anda, anda perlu beberapa informasi yang akan kembali berguna belakangan nanti. Pertama, masuklah ke interface DD-WRT administration interface pada router 1, yang terkoneksi layanan broadband.

• Alamat DNS: Klik pada menu Status/Router dan gulung layar ke bawah, Internet. Disana anda akan melihat DNS 1, 2, and 3 seperti yang diberikan oleh ISP (Internet Service Provider) anda. Catat alamat apapun yang tampil disini.

• IP LAN untuk router anda yang terhubung ke Internet: klik pada Status/LAN dan catat IP Address yang tercantum menurut Local Network.

• ID MAC wireless untuk setiap router: klik pada Status/Wireless dan catat MAC address tersebut pada bagian atas halaman tersebut. Alamat unik ini mengidentifikasikan router ini. Catat alamat router ini untuk setiap router pada WDS anda.

Back Up Setingan Anda

Sebelum mengutak-atik pengaturan router anda yang terhubung ke internet, mari back up setingan yang ada saat ini -- barangkali bekerja sebagaimana mestinya, atau anda tidak ingin membaca artikel online ini.

Klik Administration/Backup dan kemudian klik tombol Backup pada bawah halaman tersebut. Kemudian browser anda akan menyimpan sebuah file.Apakah anda perlu mengembalikan setingan anda, kunjungi kembali halaman in dan berikan file backup file ke kotak dialog Restore Settings.

Menyulap Router

Cara yang paling mudah untuk terus mengikuti tutorial ini adalah konfigurasikan kedua router pada waktu yang sama. Idealnya, hubungkan komputer portabel atau komputer sekunder ke interface administration router kedua ketika mengakses router primer anda dari LAN komputer.

Idealnya, anda harus reset kedua router untuk daftar yang benar -- hanya dalam kasusu sebuah setingan pada suatu tempat mungkin menggangu WDS. Anda dapat mengembalikan setingan router anda ke setingan default pabrik dengan meng-klik Administration/Factory Defaults dan kemudian klik Save Settings.

Tahap - Tahap WDS

Tahap 1: Set alamat IP LAN untuk setipa router. Klick Setup/Basic Setup dan gulung layar ke bagian Network Setup. Default alamat IP Lokal untuk router anda, setelah me-reset-nya ke default setingan pabrik adalah 192.168.1.1. (Contoh disini menggunakan 192.168.0.1, akan tetapi tidak memiliki perbedaan yang banyak: Tiga oktet pertama alamat IP harus sesuai terhadap node untuk berkomunikasi pada jaringan tersebut.)

Berikan alamat IP lokal baru untuk router anda yang kedua. Secara logika pilihlah 192.168.1.2, atau, seperti tergambar dibawah ini, yaitu 192.168.0.2.

Set alamat Gateway untuk router 2 ke alamat IP lokal ke router 1. Disini yaitu 192.168.0.1.

Tahap 2: Pada halaman konfigurasi yng sama, gulung layar ke bawah ke setingan Network Address Server Settings (DHCP). Enable-kan DHCP server pada kedua router tersebut, tapi set keduanya untuk alamt IP yang diberikan dalam rentang yang beda. Router 1 akan memberikan alamat IP mulai dari 192.168.0.100 dengan mengelompokkan 25 user. Router 2 mulai memberikan alamat IP dari 192.168.0.200 dengan mengelompokkan 25-user yang lainnya.

Anda dapat mengatur parameter ini sesuai dengan yang anda suka, sampai ketemu lagi kelompok alamat IP anda yang tidak saling melengkapi. Dengan pengaturan ini, anda dapat dengan cepat menghubungi dari klien PC siapapun yang berasosiasi denga akses poin, berdasarkan alamat IP pada saat itu. Kadang-kadang hal tersebut sangat membantu untuktroubleshooting.

Router 2 memerlukan isian DNS yang diberikan oleh ISP anda. Anda simpan in ketika membaca "You Need to Know" pada bagian di atas.

Tahap 3: Disable koneksi Internet pada Router 2 saja. Klik Setup/Basic Setup dan dibawah Internet Setup, set Connection Type menjadi "Disable."

Tahap 4: Disable firewall pada Router 2 saja. Anda tidak perlu mengaktifkan in karena router kedua anda secara sederhana melewatkan trafik internet ke router primer anda, secara default firewall aktif. Menjalankan kedua firewall pada waktu yang sama dapat menyebabkan sistem berjalan tidak tahan lama (unreliable behavior). Klik Security/Firewall dan beri checklist Disable disamping SPI Firewall. Pastikan klik "Save Settings" pada bagian bawah halaman set up ini.

Tahap 5: Set wireless network mode, SSID dan channel untuk kedua router. Klik Wireless/Basic Settings. Set Wireless Mode anda menjadi "AP" untuk kedua router.

Pilih mode network "G-only" bila anda tidak perlu mendukung klien dengan mode B. Mengingat bila anda memilih mode mixed atau B-only network, anda tidak dapat menggunakan sekuriti WPA security dengan WDS, dan oleh karena itu harus menggunakan sekuriti lain yaitu WEP atau tidak sama sekali.

Set SSID untuk setiap router. Mengingat bila anda memilih mode G-only network dan menggunakan sekuriti WPA, maka SSID haruslah identik untuk kedua router. Kalau tidak, pilih SSID yang berbeda, seperti terlihat di sini. Hal ini memastikan saya dapat secara spesifik jelas untuk terkoneksi dengan AP yang berada pada tangga atasa atau tangga bawah.

Set channel wireless sama untuk kedua router tersebut -- jangan pilih "Auto." Bila anda pilih mode network G-only, anda harus menggunakan channel yang tidak saling mendahului (non-overlapping) channel: 1, 6 atau 11 saja. Bila ada jaringan wireless yang tidak saling berhubungan yang berdekatan, anda harus memilih sebuah channel yang tidak konflik dengan jaringan itu.

Tahap 6: Disable wireless security, meskipun bersifat sementara. Yang terbaik jalankan WDS dan tanpa sekuriti -- sedikit faktor untuk troubleshoot. Klik Wireless/Wireless Security dan pilih Security Mode "Disable."

Tahap 7: Sekarang kita dapat menetapkan gabungan WDS diantara kedua router. Klik Wireless/WDS. Halaman ini menunjukkan suatu urutan isian kosong untuk WDS yang saling berhubungan.

Pada router 1, tetapkan keterkaitan dengan router 2. Pilih "LAN" dari menu bagian bawah. Masukkan alamat MAC wireless untuk router 2, yang anda simpan sebelumnya pada bagian "Yang Perlu Anda Ketahui". Secara bebas, masukkan sebuah label untuk gabungan WDS ini.

Pada router 2, ulangi prosedur yang sama, masukkan alamat MAC untuk router 1, dan tandai dengan label yang sesuai.

Pastikan klik "Save Settings" pada bagian paling bawah halaman tersebut.

Nyalakan Router

WDS anda telah siap digunakan. Sebagai uji pertama, posisi kedua router dekat satu sama lain maka kekuatan sinyal anda pastilah baik. Dengan menggunakan sebuah PC klien atau komputer portable, anda dapat bergabung dengan router yang lain dan mengakses Internet.

Berikutnya, posisikan router kedua kearah ujung luar dari rentang router pertama. Hal ini memerlukan beberapa percobaan, pindahkan tambah lebih jauh, untuk mendapatkan lokasi yang terbaik untk router kedua. Idealnya, posisinya cukup tertutup terhadap router pertama yang menerima sinyal kuat, namun cukup jauh yang dapat menambah jangkauan wireless anda yang lumayan luas.

Ketika anda konfirmasi bahwa WDS anda bekerja, anda dapat mengunjungi kembali sekuriti wireless yang diaktifkan. Pastikan bahwa memilih parameter protokol sekuriti yang persis sama untuk kedua router tersebut. Mengingat WDS pada firmware DD-WRT saat ini tidak mendukung enkripsi WPA2, dan hanya mendukung enkripsi WPA pada jaringan G-only.

Beberapa user melaporkan problem dengan port forwarding dari router primernya terhadap klien yang berasosiasi dengan router keduanya. Bila anda menggunakan port forwarding dan mengalami hal ini, Jika ada trouble yang sering ditimbulkan dengan cara WDS pada DD-WRT cobalah aktifkan DMZ -nya. (definisi). Klik Applications & Gaming/DMZ dan masukkan alamat IP router kedua anda, klik Enable dan "Save Settings."

Happy repeating..!!! :-)

Para probarlo basta con bajarse alguno de los tarball, compilar e instalarlo ("make" y "make install"), blacklistar el ath5k y ndiswrapper si es necesario ( /etc/modprobe.d/blacklist ), reiniciar y listo.

Ya lo compilé e instalé en mi Debian Sid (2.6.25-2-amd64), aún no lo he probado porque no hay ninguna wlan cerca de donde me encuentro actualmente, les dejo como dato la salida de lspci y del ath_info (la info del módulo):

"spci -vnn" output:

05:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter [168c:001c] (rev 01)
        Subsystem: AMBIT Microsystem Corp. Device [1468:0428]
        Flags: bus master, fast devsel, latency 0, IRQ 19
        Memory at f2200000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 2
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable-
        Capabilities: [60] Express Legacy Endpoint, MSI 00
        Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
        Capabilities: [100] Advanced Error Reporting <?>
        Capabilities: [140] Virtual Channel <?>
        Kernel driver in use: ath_pci
        Kernel modules: ath5k, ath_pci

ath_info lines:

 -==Device Information==-
MAC Revision: 2425  (0xe2)
Warning: Invalid EEPROM Magic number!
Device type:  3

/============== EEPROM Information =============\
| EEPROM Version:   5.3 | EEPROM Size:   4 kbit |
| EEMAP:              2 | Reg. Domain:     0x65 |
|================= Capabilities ================|
| 802.11a Support:  no  | Turbo-A disabled: yes |
| 802.11b Support:  no  | Turbo-G disabled: yes |
| 802.11g Support:  yes | 2GHz XR disabled: yes |
| RFKill  Support:  yes | 5GHz XR disabled: yes |
| 32kHz   Crystal:  no  |                       |
\===============================================/

/=========================================================\
|          Calibration data common for all modes          |
|=========================================================|
|          CCK/OFDM gain delta:             1             |
|          CCK/OFDM power delta:            5             |
|          Scaled CCK delta:                5             |
|          2GHz Antenna gain:               0             |
|          5GHz Antenna gain:               0             |
|          Turbo 2W maximum dBm:           38             |
|          Target power start:          0x16e             |
|          EAR Start:                   0x1b8             |
\=========================================================/

/=========================================================\
|          Calibration data for 802.11g operation         |
|=========================================================|
| I power:              0x00 | Q power:              0x10 |
| Use fixed bias:       0x01 | Max turbo power:      0x26 |
| Max XR power:         0x24 | Switch Settling Time: 0x28 |
| Tx/Rx attenuation:    0x19 | TX end to XLNA On:    0x00 |
| TX end to XPA Off:    0x00 | TX end to XPA On:     0x0e |
| 62db Threshold:       0x1c | XLNA gain:            0x00 |
| XPD:                  0x01 | XPD gain:             0x0a |
| I gain:               0x00 | Tx/Rx margin:         0x01 |
| False detect backoff: 0x00 | Noise Floor Threshold:  -1 |
| ADC desired size:      -38 | PGA desired size:      -80 |
|=========================================================|
| Antenna control   0:  0x00 | Antenna control   1:  0x02 |
| Antenna control   2:  0x21 | Antenna control   3:  0x21 |
| Antenna control   4:  0x00 | Antenna control   5:  0x00 |
| Antenna control   6:  0x01 | Antenna control   7:  0x22 |
| Antenna control   8:  0x22 | Antenna control   9:  0x00 |
| Antenna control  10:  0x00 | Antenna control  11:  0x02 |
|=========================================================|
| Octave Band 0:           3 | db 0:                    3 |
| Octave Band 1:           4 | db 1:                    4 |
| Octave Band 2:           0 | db 2:                    0 |
| Octave Band 3:           0 | db 3:                    0 |
\=========================================================/
/============== Per rate power calibration ===========\
| Freq | 6-24Mbit/s | 36Mbit/s |  48Mbit/s | 54Mbit/s |
|======|============|==========|===========|==========|
| 2412 |    18.00   |  17.00   |   15.01   |  13.01   |
|======|============|==========|===========|==========|
| 2437 |    18.00   |  17.00   |   15.01   |  13.01   |
|======|============|==========|===========|==========|
| 2472 |    18.00   |  17.00   |   15.01   |  13.01   |
\=====================================================/
/=================== Per channel power calibration ====================\
| Freq | pwr_0 | pwr_1 | pwr_2 | pwr_3 |pwrx3_0|pwrx3_1|pwrx3_2|max_pwr|
|      | pcdac | pcdac | pcdac | pcdac | pcdac | pcdac | pcdac |       |
|======|=======|=======|=======|=======|=======|=======|=======|=======|
| 2412 | 25.00 | 25.00 |  0.00 | 25.00 |  0.00 |  0.00 | 29.01 | 25.00 |
|      | [112] | [112] | [112] | [112] |  [20] |  [35] |  [63] |       |
\======================================================================/

GPIO registers: CR 0x00000000, DO 0x00000000, DI 0x0000000b
STA_ID0: d8:47:0c:63:20:04
STA_ID1: 0x00000420, AP: 0, IBSS: 0, KeyCache Disable: 0
TIMER0: 0x00002067, TBTT:  8295, TU: 0x00652067
TIMER1: 0x00046240, DMAb: 35912, TU: 0x00648c48 (-37919)
TIMER2: 0x01044640, SWBA: 35016, TU: 0x00a088c8 (+3893345)
TIMER3: 0x00001a8c, ATIM:  6796, TU: 0x00651a8c (-1499)
TSF: 0x0000000190e08c26, TSFTU: 14371, TU: 0x00643823
BEACON: 0x003c0420
LAST_TSTP: 0xc2b03e9a

En cuanto pueda probar que tal funciona, redacto el próximo post con los resultados de la prueba.

Salu2

The filing is basically for an automated content capture and processing system where a live camera feed of a presenter can be automatically merged with a Keynote or PowerPoint presentation to form an entertaining and dynamic podcast that lets the viewer watch the presenter's slides as well as the presenter. In one example outlined in the filing, the content capture system provides a video stream (Stream A) and an Keynote presentation stream (Stream B) to a recording agent such as a Mac running specialized Podcast creation software. The recording agent then blends the two feeds together based on certain cues and sends the combined feed to a syndication server that would then distribute the video wirelessly as a Podcast to any number of authorized Macs, iPods or iPhones. (From AppleInsider.)

Keynote 08 allows for the presentation/slideshow to be recorded with audio and  exported as a video podcast. Also, a nice software titled ProfCast allows for the capture of audio to be combined with your Keynote of PowerPoint and converted to a video podcast. There is no software that seamlessly and easily allows you to capture both the presenter and the slides as well as audio. The best you could do now may be for a simple iMovie capture using your MacBook but it would not make the slideshow you worked so hard on look very good.

The entire patent includes much more in the way the presenter can interact with the recording through voice, gestures, and laser pointers.  Please note that earlier reported patents such as Podcasts on Demand and  PodMaps have not been realized so there can be absolutely no gurantee this will be a reality.  ( I sure hope it happens, though!)

I am a huge advocate of podcasting. The benefits and uses are numerous. I embrace, recommend, and teach the idea of limited or no-editing podcasts, so this new patent really intrigues me.  My desire podcasts to be as simple, yet effective as possible.  My goal is make it as easy for the teacher as possible to capture an audio or video podcast.  The teacher has the challenge of making  the podcast meaningful.

I really like this patent idea and will be following it closely.  I hope I can update this article soon as to a date of delivery to educators everywhere.

Cell phones are not just for texting and chatting anymore. The ubiquitous devices now are becoming highly sophisticated mobile-gaming platforms as major firms such as Activision and Electronic Arts come out with mobile versions of their most popular games. "Guitar Hero" for mobile phones, for instance, has quickly been rising in the gaming ranks, according to M:Metrics. (The New York Times 7/17)

As of May, Guitar Hero's mobile version ranked ninth among top-selling games.

With an assist from MediaFLO USA, ESPN has launched EXPN, a mobile video channel that will serve up coverage of the cable sports network's X Games. The channel, available to those who have the AT&T Mobile TV and Verizon Wireless V CAST Mobile TV, will air 31 hours of live coverage of the event, which runs from July 31 to Aug. 3. (World Screen News 7/16, RCR Wireless News 7/16)

The next step is already here..."MY WIRELESSNEWS.COM" has just pre-launched on June 8, 2008 and is scheduled to open its doors for business during our FULL-LAUNCH on July 29, 2008. During pre-launch, you have the privledge to "Pre-Enroll" everyone you know for FREE, and when it comes time for our launch day, everyone will upgrade at that time to either a "Wireless Customer" and/or a "Wireless Rep" with "MY WIRELESSREP.COM". Start today and become the envy of millions of people later as they will certainly WISH they also had the opportunity like you have in being able to take full advantage of the timing factor at hand today!

Click on THE LINK BELOW now to 'PRE-ENROLL' AND LOCK IN YOUR FREE POSITION at

http://tbn.mywirelessnews.com

We had a very powerful Conference Call & Training Session on this day, Saturday July 5, 2008 at 11:00 am EST.

I am pleased to announce that we managed to voice record the entire training session so that you may come back and revisit to learn at your convenience 24 hrs. per day. So here is the new Pre-recorded Training Session Phone Number:

218-936-1005, PIN = 234719#

Now that number is ONLY for the pre-recorded session. Below you will find the correct number to dial in LIVE for our Saturday Morning Training Sessions at 11:00 am EST:

218-486-1600, PIN = 117482#

Tuesday Corporate Conference Call starts at 9:00 pm EST. Please dial the number below:

212-990-8000, PIN = 2355#

Thursday Conference Call with Eric Higgins Team starts at 8:00 pm EST. Please dial:

646-519-5800, PIN = 5523#

All call schedules are usually met by popular demand so be certain to dial in at least about 5 to 6 minutes early to lock in your seat. Next week should be a very important week for us so DO NOT miss the important announcements as they are delivered to us fresh during these calls. We'll hear you on the calls...

Take a few minutes and view this information you will be glad you did:

http://tbn.mywirelessnews.com

Zaprojektowany zgodnie z koncepcją wzorniczą Gemstone, notebook Aspire 2930 cechuje się łagodnymi liniami. Szafirowy przycisk Empowering Key umożliwia łatwy dostęp do rozwiązań opartych na technologii Acer Empowering Technology. Pomimo małych rozmiarów, notebook Aspire 2930 jest wyposażony w najnowsze rozwiązania techniczne, gwarantujące wspaniałą rozrywkę multimedialną.

Notebook Aspire 2930 jest wyposażony w technologię Intel® Centrino® 2, w tym najnowszy procesor Intel® Core™ 2 Duo – oparty na technologii Intel 45 nm i współpracujący z architekturą Intel 64 zapewniającą większą wydajność i mniejsze zużycie energii – oraz chipset Mobile Intel® GM45, dzięki czemu doskonale nadaje się zarówno do rozrywki, jak i pracy wielozadaniowej. Ponadto, zintegrowana, bezprzewodowa karta sieciowa współpracująca z technologią Acer SignalUp™ zapewnia pełną i wygodną łączność. Dzięki temu, Aspire 2930 doskonale sprawdza się zarówno w domu, jak i w podróży.

Zintegrowany akcelerator graficzny Intel® Graphics Media Accelerator 4500MHD zapewnia wspaniałą jakość obrazu o dużej rozdzielczości. Dzięki temu notebook Aspire2930 jest źródłem doskonałej rozrywki, która zachwyci wszystkich użytkowników. Ponadto, panoramiczny panel Acer CrystalBrite o przekątnej 12,1 cala wyświetla realistyczny obraz o żywych odcieniach i duży kontraście.

Notebook Aspire 2930 jest wyposażony we wszystkie czołowe technologie zapewniające rozrywkę multimedialną. Dwukanałowa pamięć DDR2 o pojemności nawet 4 GB pozwala notebookowi Aspire 2930 spełnić wszystkie wymagania związane z pracą wielozadaniową oraz odtwarzaniem multimediów.

Aby zapewnić wystarczające miejsce do przechowywania plików, notebook został wyposażony w pojemny dysk twardy Serial ATA.

Notebooki z serii Aspire 2930 są oferowane z preinstalowanymi systemem operacyjnym Microsoft Windows Vista® Home Premium. Notebooki są dostarczane wraz z preinstalowanymi programami: Acer Empowering Technology (Acer eAudio, ePower, eDataSecurity1, eRecovery, e Settings Management); Acer Arcade™ Deluxe1 (z aplikacjami DV Wizard, VideoMagician, DVDivine, Acer HomeMedia); Acer InstantOn Arcade; Acer Crystal Eye1; Acer GridVista™; Acer Launch Manager; Acer GameZone1; Acer Video Conference Manager1; Acer Video Conference Manager, z technologią Video Quality Enhancement (VQE)1; Adobe® Reader®; CyberLink® PowerDirector® w wersji próbnej; McAfee® Internet Security Suite; NTI Media Maker™; Microsoft® Works 9.0 z Office Home and Student 2007 (w wersji próbnej).

O firmie Acer

Od założenia w 1976 roku firma Acer konsekwentnie realizuje swój cel, którym jest przełamywanie barier między ludźmi a technologią. Koncentrując się na globalnym marketingu swoich markowych wyrobów IT, firma Acer zajmuje na świecie 3 miejsce (4. kw. 2007) na ogólnym rynku komputerów PC oraz 2 miejsce na rynku notebooków, a także osiągnęła największy wzrost wśród pięciu głównych uczestników rynku. Podstawą ciągłego rozwoju firmy Acer jest przynoszący korzyści kanałowy model biznesowy, a przejęcie spółki Gateway Inc. powiększyło udział firmy w rynku światowym poprzez zwiększenie obecności w USA oraz umocnienie pozycji w Europie. Firma Acer Inc. zatrudnia 5300 osób na całym świecie. W roku 2007 jej dochody wyniosły 14,07 miliarda USD. Więcej informacji zamieszczono na stronie www.acer.pl.

Questione che non può che indurre a qualche preoccupazione, non solo per il destino di intere fasce di popolazione attualmente escluse, in piena era digitale, da modalità di comunicazione e trasmissione , da fonti di studio e di informazione, ma anche per il presente e il futuro prossimo di un’economia di micro, piccole e medie imprese già in sofferenza e che rischiano di pagare ulteriormente e a caro prezzo l’impossibilità di percorrere la via dell’innovazione, dell’internazionalizzazione e dell’abbattimento di costi e tempi: si pensi alle zone industriali e ai relativi comprensori, ai servizi connessi al turismo e all’artigianato.

Il problema, in verità, non è certo nuovo a livello nazionale, soprattutto in rapporto a quanto accade nel resto dell’Europa, e la mancata connessione adsl o superiore rappresenta solo uno dei fattori che hanno generato e allargano ogni giorno di più quel digital divide geografico e non solo di cui molti cittadini e molte imprese della Calabria e della provincia di Vibo Valentia sono vittime.

Qualche cifra può essere utile a rendere meglio l’idea della gravità della situazione generale e della sua complessità.

Secondo il Rapporto del Digital Divide Forum della Commissione Europea, nel gennaio 2005 l’Italia presentava un tasso di penetrazione della banda larga pari appena all’8,5% delle utenze, collocandosi al di sotto della media dell’Europa a 25.

La copertura delle aree rurali era inferiore al 40%, mentre la media europea era del 62%, a fronte di casi come quelli della Gran Bretagna, che in dodici mesi passava dal 40% all’80%, e di Belgio, Olanda, Danimarca e Lussemburgo, che già all’epoca erano coperte al 100%.

La Relazione della Commissione Europea sui mercati europei delle comunicazioni elettroniche presentata nel marzo del 2008 pone l’Italia al quindicesimo posto su 27, con un tasso di penetrazione del 17,1%, corrispondente a circa 10 milioni di utenti, in crescita ma inferiore alla media europea, che è del 20% rispetto al 16,3% dell’anno precedente, e inferiore ai tassi di Gran Bretagna, Lussemburgo, Francia, Belgio, Danimarca, Olanda, Finlandia e Svezia, che arrivano a punte di penetrazione del 30% nel 2007.

Il 30% degli 8 mila Comuni italiani non è raggiunto e nelle zone rurali italiane la penetrazione è di 2/3 inferiore rispetto a quella europea e di molto inferiore a quella che si registra nelle aree urbane.

Ancora più di recente, un Rapporto dell’Osservatorio Banda Larga, sia pure alla luce di alcuni rilievi appena confortanti, ha posto l’accento sul ritardo e sui vincoli strutturali dell’Italia, aspetto a più riprese sottolineato da Assinform nei suoi Rapporti, che registrano un trend costantemente negativo degli investimenti.

Ma rilevante è anche che ben 14 milioni di famiglie siano prive di connessione veloce, dato da attribuire alla mancata dotazione di infrastrutture, a una scarsa alfabetizzazione informatica e ad una bassa percezione dell’impatto positivo della banda larga, con un uso domestico delle connessioni attraverso telefonia cellulare in aumento e, a ciò correlata, una preminenza della comunicazione privata e dell’informazione passiva su ogni altro tipo di attività on line.

Nelle ultime settimane, il Rapporto eGov.Impresa 2008 redatto da Retecamere ha evidenziato, da un lato, una maggiore attenzione delle Pubbliche Amministrazioni verso le potenzialità della digitalizzazione ma dall’altro un grave ritardo nella fornitura di servizi al di là dei contenuti meramente informativi e, soprattutto, un forte divario tra Nord e Sud dell’Italia: solo il 15,4% delle risorse e del contributo medio all’e-government al Sud, contro il 58,7% al Nord.

Altri dati interessanti sono quelli che rivelano che appena la metà delle imprese italiane sfrutta i servizi di transazione on line contro il 78%, per esempio, di quelle finlandesi e che appena il 5% dei siti pubblici e il 3% di quelli privati sono rispettosi delle norme in favore dell’accesso agli strumenti informatici e alla rete da parte dei soggetti disabili, come segnalato anche dal CNIPA all’ultimo ForumPA di Roma.

Queste cifre, apparentemente disorganiche e certamente non esaustive di un complesso statistico ben più ampio, profondo e variegato in numero di fonti e livello di analisi, compongono nel loro insieme un quadro articolato, nel quale si inserisce il particolare svantaggio in cui versano parte del Mezzogiorno e della Calabria; e non possono non venire in considerazione le difficoltà e le contraddizioni di una fase di evoluzione e di riorganizzazione dell’agire amministrativo in Italia, che ha i suoi passaggi principali nell’auspicata effettività dei diritti del cittadino-impresa nei confronti della Pubblica Amministrazione, nella realizzazione di un federalismo telematico efficiente attraverso il Sistema Pubblico di Connettività e, tra gli altri, nell’abolizione progressiva della carta quale premessa all’informatizzazione integrale di servizi e procedimenti.

Ma dato che a nulla di positivo conduce l’attesa messianica dei miracoli del mercato e della tecnica e che la storia recente insegna che non c’è innovazione imponibile dal centro e imposta dal destino, ma solo un’innovazione tecnica sempre più veloce e dinamica alla quale occorre adeguarsi qui ed ora nella norma e nella pratica, cifre ed esperienza quotidiana devono anche indurre a un ribaltamento di prospettiva.

A oltre dieci anni dall’affermazione normativa del documento informatico, a tre anni dall’entrata in vigore del Codice dell’Amministrazione Digitale, è forse giunto il momento che la rivoluzione tecnologica e l’innovazione, nei casi in cui di esse non vi sia che la speranza, muovano dal basso.

Si deve quindi concordare con Valerio Colaci, quando denuncia la scarsa apertura del mercato che si cela, neanche troppo, dietro la mancata dotazione di banda larga a vaste zone della provincia di Vibo Valentia, ragioni che peraltro il Commissario Europeo Viviane Reding sostiene da anni tanto in riferimento alle dorsali principali quanto in riferimento al local loop, e ancor di più quando invoca l’azione dei Comuni, invitandoli a tutte le necessarie e possibili pressioni.

Ma v’è da aggiungere che un intervento esclusivamente politico e di tipo rappresentativo può non essere sufficiente e che i modelli che si affermano sul territorio nazionale possono invece fornire quantomeno uno spunto d’azione agli amministratori delle aree discriminate delle province calabresi.

Si pensi all’accordo raggiunto nei giorni scorsi tra Regione Umbria e Telecom, che consentirà una copertura del 92% entro il 2008 e del 100% nel 2009 con il coinvolgimento dei Comuni; oppure ai piani predisposti da regioni come la Toscana, all’avanguardia e per molti versi anticipatrice in materia di innovazione della Pubblica Amministrazione.

Si faccia l’esempio, ancora, delle tante iniziative di cooperazione tra amministrazioni diverse che, insieme, a costi ridotti e con maggiore potere contrattuale sono riuscite in varie zone del Paese a far giungere la banda larga fino alle case dei propri cittadini e alle sedi delle proprie imprese, attraverso sistemi di ponti e hot spot.

Si valuti la via percorsa dal Trentino-Alto Adige, che solo poche settimane fa ha ottenuto l’autorizzazione della Commissione Europea al finanziamento con fondi pubblici provinciali della copertura delle zone montane, sotto forma di aiuto di Stato e per un ammontare di circa 7 milioni di euro.

Il presente, in sintesi, è realisticamente nella cooperazione e nell’investimento pubblico-privato, e soprattutto nello spirito di iniziativa degli enti locali delle periferie.

La best practice locale, che già buoni risultati ha prodotto in materia di e-democracy e di e-government anche in Calabria (basti ricordare da ultimo l’avvio di Reggio Calabria Wireless, poi i successi nazionali dei siti del Comune di Catanzaro e della Provincia di Crotone, l’innovativa piattaforma “Cittadini digitali” predisposta dai comuni silani del Pit 12 e altro ancora), offre cioè varie ipotesi operative e opportunità che vanno colte al più presto e prima che il divario digitale sia conclamato e irreversibile.

Tanto sul piano nazionale quanto su quello comunitario, con l’attuazione in corso del programma i2010, tralasciando l’enfasi di qualche annuncio e di qualche auspicio, l’attenzione alla diffusione della banda larga quale vero e proprio diritto dei cittadini è massima, al pari della sensibilità verso progetti meritevoli.

Dove questo segnale non dovesse giungere, può essere un segnale di senso inverso a prevalere: siano i cittadini a pretendere dalla Pubblica Amministrazione servizi on line e siti internet accessibili e concepiti secondo le norme del Codice dell’Amministrazione Digitale e della Legge Stanca; siano i soggetti economici a trascinare l’innovazione; siano i Comuni e gli altri enti locali ad attivarsi con formule di cooperazione e di finanziamento, con la valorizzazione di competenze e lo studio tecnico e giuridico della fattibilità e mediante accordi con proprietari e fornitori delle infrastrutture e della banda; sia, in conclusione, una rivoluzione culturale, che prenda le mosse dall’acquisita consapevolezza da parte del cittadino-impresa, portatore di un interesse apprezzabile, utente e soggetto di diritti, della convenienza e delle enormi potenzialità offerte da un’innovazione nient’affatto impossibile.

In questa ottica, che sia finalmente la stampa locale a tentare di scuotere le coscienze dei più attenti e meglio predisposti, è già di per sé una buona notizia.

Det er faktisk muligt at sikre sig på andre måder end ved at låse sit trådløse netværk - Den største risiko for indtrængende kommer trods alt fortsat fra internettets millioner af brugere, der potentielt kan gå ind på din computer - set i forhold til de forbipasserende eller naboer der kan finde på at bruge de åbne trådløse netværk er der ingen sammenligning.

Tendensen er da også klar, mange computere har i forbindelse med antivirus applikationer også en lokal firewall, ligesom at Windows XP SP2 jo har den indbygget! - Sådan skal det også være, sikkerheden skal danne mur omkring det private - ikke omkring det der roligt kan distribueres, nemlig internet adgangen!

Så er der problematikken omkring folk der bruger ens wireless til ulovligheder, såsom terror og børneporno. Hvis man vil begå ulovligheder kan man sagtens fra sin egen computer skjule sig totalt for ens egen ISP og alle andre, så hvorfor skulle forbryderne bekymre sig om at køre rundt i byen og finde åbne trådløse netværk?

Skulle en forbryder regelmæssigt bruge ens trådløse internet, vil signaturer både på internettet og i den wireless routers log vise at det ikke er internet forbindelsens ejer der er forbryderen, så ejeren kan slå koldt vand i blodet - hvis man har sit på det rene er der jo ingen grund til bekymring!

Jeg tror at sagens rette sammenhæng er at ISP'erne vil bremse udbredelsen af wireless frit gratis overalt internet - Det er jo en bombe under deres services - både diverse 3G og andre wireless internet netværk der kræver abonnement, og naturligvis også under udbredelsen af internet til hver enkelt husstand. Stort set alle IT professionelle har jo i dag mindst 3 betalte internet abonnementer i brug: Virksomhedens, Hjemmets og Mobilens internet abonnement.

Mimer Management foreslår følgende forandringer:

1. ISP'erne skal se sig om efter en forretningsmodel hvor alle kan komme på internet altid - uden ekstra og personlige abonnementer!

2. Hvis Danmark fortsat skal være et teknologisk foregangsland Regeringen skal øge mulighederne for nye innovative virksomheders tiltag, der kan udbrede internettet med betaling der passer - Der er jo allerede kæmpe puljer til innovative virksomheder, men bliver de brugt til at konkurrere mod eksisterende virksomheders gammeldags opfattelse af betaling og forbrug?

3. Glem at lede efter forbryderne i ISP'ernes log-filer - de professionelle forbrydere (dem der står bag eller er rigtig farlige) kan alligevel ikke spores der.

Muligheder der kan overvejes:

1. ISP'erne kan sætte prisen betydeligt ned og opkræve betaling pr. IP-adresse der benytter forbindelsen, og brugeren kan evt. begrænse det maksimale antal samtidige IP-adresser brugeren vil tillade går igennem hendes wireless internet.

2. ISP'erne kan sætte prisen gevaldigt ned på GB prisen, og igen lade det være op til brugeren at styre hvor meget forbrug man vil tillade igennem sin wireless internet - Så kommer vi naturligvis ud i en problematik mellem forskellen på storforbrugere af content og småforbrugere af en mail i ny og næ, kontra omkostningen ved overhoved at have udstyr stående hos brugeren. Devisen her må være at småforbrugerne slet ikke burde behøve at købe en forbindelse, da de kan bruge naboens forbindelse.

3. ISP'erne skal se lidt på mangfoldigheden i mobil markedsføring og overveje at deres abonnementer skal være lige så forskellige som brugernes behov!

4. Regeringen skal yde støtte til tiltag der kan gøre wireless internet mere tilgængeligt, via bredere afregningsmuligheder, ét abonnement eller helt gratis, finansieret igennem andre muligheder.

5. IPv6 bliver knap nok omtalt i danske medier - med udbredelsen af IPv6 vil afregning kunne ske til den enkelte bruger pr. enhed og forbrug!

Mă fac decent (îmi iau un tricou pe mine) şi urc la el. Ajung acolo, un amărât de Pentium 3 cu veo 600 MB RAM. Windows XP, placa wireless pe USB. Buun, îl întreb unde are modemul, el îmi răspunde rapid, în calculator. Ma uit la el mirat, cum "în calculator? Eşti sigur?". "Da" îmi răspunde el, doar că nu ştie cum să-l conecteze la interfaţa WAN a router-ului. Stau puţin să analizez situaţia "la rece", mă uit în spate la unitatea centrală să vad şi eu modem-ul ăla fantastic, şi când colo, e doar un modem dialup. Mă apucă râsul şi îl întreb de la cine are net. El se uită buimac la mine. Văd ca nu m-a înţeles şi îl inteb mai explicit: "Cu cine ai încheiat abonament de acces la Internet?". Lejer mă anunţă că nu are abonament, dar că "se bagă pe wireless".

Mă gândesc, are rost să încep măcar să-i explic unde a greşit fundamental, sau nu pot sa combat teoremele "specialistului" care l-a îndoctrinat. Mă gândesc la o modalitate cât mai uşoară să-i explic cu ce se mănâncă termenii ăia tehnici care l-au făcut să-mi sune la uşă, şi încet-încet îi desenez o schiţă cu reţele, subreţele şi router-e. Dă omu din cap cam sceptic, deoarece ii invalidez teorema "netului wireless gratuit". Într-un final dă semne de iluminare şi pare că a înţeles că fără un abonament nu se poate conecta la internet.

Într-un final îi arăt cum poate intra în interfaţa de configurare a router-ului, şi îl las într-o stare de depresie temporară să digere informaţiile recent acumulate.

Diseara mă aştept să sune iar ...

Scope
This report covers the following:

• Contains an executive summary and data on value, volume and segmentation

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• Includes a five-year forecast of the industry

• Detailed information is included on market size, measured by both value and volume 

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Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

http://www.bharatbook.com/detail.asp?id=79436

Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

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Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

http://www.bharatbook.com/detail.asp?id=79438

Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

http://www.bharatbook.com/detail.asp?id=79439

Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

http://www.bharatbook.com/detail.asp?id=79440

Scope
This report covers the following:

• Contains an executive summary and data on value, volume and segmentation

• Provides textual analysis of the industry's prospects, competitive landscape and leading companies

• Includes a five-year forecast of the industry

• Detailed information is included on market size, measured by both value and volume 

Reasons to Purchase
Purchasing this report will enable you to:

• Spot future trends and developments

• Inform your business decisions

• Add weight to presentations and marketing materials

• Save time carrying out entry-level research

Table of Contents:
This product typically includes the following sections:

• Market Overview

• Market Value

• Market Volume

• Market Segmentation

• Competitive Landscape

• Information on the Leading Companies

• Market Forecasts

• Demographics

• Further Reading

http://www.bharatbook.com/detail.asp?id=79441