What are DSL / Digital subscriber line?

What are DSL / Digital subscriber line?
DSL or digital subscriber line is a service that makes the use of existing copper telephone wires for transfer data services at extreme speed. It does not hamper the existing line and also surf the internet with talk on phone, simultaneously.DSl offers speed that around 5 to 30 times higher than a typical 56 kbps dial-up connection. That helps that websites would load quickly, faster downloads, faster videos buffering and the domain of online games would be illimitable.
DSL can be categorized in three divisions. There are given below.
ASDL (Asymmetric digital subscriber line): - It offers download speed of 1.5 Mbps and upload speed of 385k. in order to acquire a ADSL connection. Your location has to be with in 3 miles of your local telephone exchange. DSL router is need for this connection,
IDSL (ISDN digital subscriber line) :- IN IDSL connection distance is not considered. In IDSL ISDN router is required and it provide a connection speed of 144k.
SDSL (Symmetric digital subscriber line) :- The speed available under this type of DSL connection depend upon the distance between location and local telephone exchange.
Advantages of DSL: - no installation of new wires required. DSL uses the present telephone line to connect to the internet. It provides extremely fast connection. The download rate is much faster in DSL. A DSL connection is very secure.
Disadvantage of DSL: - The quality of your DSL connection depends upon the distance between location and your local exchange. DSL provide high speeds for downloading stuff but upload speed are not good.
DSL vs Cable modems: - The service provides through a cable modem can sometimes slow down or gets hanged. It depends on the no of users accessing that particular service. But, in a DSL connection there is no such problem. The speed of DSL is consistent and high. This does not allow any kind of conjunction on the networks. It provides more security than the cable modem connection.

Gateway releases 16-inch MC series laptops

Gateway released as 16-inch laptops, model no MC7801u and the MC7803u with a 16:9 aspect ratio screen, 16-inch (and 18-inch) models are beginning to emerge.

16:9 screens match the ratio of movies and HD content. Similar to the redesigned Mac Book the display on Gateway's MC series laptops features a glossy glass overlay that runs edge to edge. The 16-inch screen features a 1366x768 resolution; you'll need to bump up to an 18-inch model for 1080p playback.

The MC7801u features a 2.0GHz Core 2 Duo T5800 CPU, 4GB of DDR2 RAM, 64-bit Vista Home Premium, and a 320GB hard drive. So why you miss out Intel's latest Centrino 2 platform and the laptop relies on integrated Intel GMA 4500MHD graphics.

A second model in the 16-inch MC series, the MC7803u, will feature a dedicated 512MB ATI Mobility Radeon HD 3650 graphics card. Providing the MC models with a distinctive look, a thin pleather strip runs down the middle of the lid. The lower-end MC7801u features a burgundy lid, and the higher-end MC7803u features a black lid.

Other features include HDMI and VGA ports, backlit keyboard and multimedia controls, Webcam, DVD burner, Draft N Wi-Fi and Gigabit Ethernet, four USB 2.0 ports, and Express Card and media card slots.

The Gateway MC7801u is being sold through Best Buy and is included in our Look for our review next.