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SSID In WiFi

In Wi-Fi Wireless LAN computer networking, a service set identifier (SSID) is a code attached to all packets on a wireless network to identify each packet as part of that network. The code is a case sensitive text string which consists of a maximum of 32 alphanumeric characters. All wireless devices attempting to communicate with each other must share the same SSID. Apart from identifying each packet, SSID also serves to uniquely identify a group of wireless network devices used in a given “Service Set”.

There are two major variants of the SSID.

* Ad-hoc wireless networks (IBSS) that consist of client machines without an access point use the IBSS ID (Independent Basic Service Set Identifier)
* Infrastructure networks which includes an access point (BSS or possibly an ESS) use the BSS ID or ESS ID (E for Extended) instead.

Dell M2010

Short review glimpse of the heavy duty M2010.
The good: Sleek, attention-getting design; high-quality, adjustable 20-inch LCD; speakers offer crisp, rich audio; detachable Bluetooth keyboard and Media Center remote will work well from the couch or during a presentation; top-of-the-line components deliver high overall performance and competent gaming capability.

The bad: Absurdly expensive; TV tuner and some other A/V connections aren’t built in; too heavy to be truly portable, so definitely doesn’t need a laptop stand!

The bottom line: A striking feat of engineering that’s sure to garner attention in a stylish home or on a multimedia-intensive sales call, the Dell XPS M2010 is simply too expensive and impractical to be anything more than a curio for the rest of us.

Video Conferencing

High speed Internet connectivity has become more widely available at a reasonable cost and the cost of video capture and display technology has decreased. Consequently personal video teleconference systems based on a webcam, personal computer system, software compression and broadband Internet connectivity have become affordable for the general public. Also, the hardware used for this technology has continued to improve in quality, and prices have dropped dramatically. The availability of free software (often as part of chat programs such as Windows Live Messenger) has made software based video conferencing accessible to many.

For many years, futurists have envisioned a future where telephone conversations will take place as actual face-to-face encounters with video as well as audio. Desktop PC videoconferencing promises to make this a reality, although it remains to be seen whether there is widespread enthusiasm for video calling.