ADSL Routers by Ross Bainbridge
A circuit in an ADSL is defined by endpoints. A route is defined as the path that is taken between these endpoints. Switching is the process of making a path available for use by a circuit. A router shifts data from one route to another. It also allows for access to various fixed or temporary... In this case, the LAN grabs a copy of the packet from the first LAN and puts it on the second LAN. ... In a scenario where User A and User B are located on the same LAN, the router does not do anything except examine the packet.

CCNA Courses by Marcus Peterson
The curriculum for CCNA is comprehensive and includes four separate modules. The learning objectives of the CCNA certification exam, which is the first step in a Cisco career certification path, are covered in these modules. The curriculum places emphasis on the use of problem-solving techniques... The Switching Basics and Intermediate Routing module details switch concepts and configuration and spanning-tree protocol among others, while the WAN Technologies module explains several topics including frame relay.

Local Area Networks - Computer Networking by Michael Cooper
Local Area Networks also called LANs have been a major player in industrialization of computers. In the past 20 or so years the worlds industry has be invaded with new computer technology. It has made such an impact on the way we do business that it has become essential with an ever-growing need... First sharing files “ A LAN enables many user to share a single copy of a file stored on a central file server computer.”(Introduction to Networking 1992) Transferring files “A LAN enables you to copy files from machine to machine without having to exchange floppy disks.”(Understanding Data...

Who Needs a Firewall? by Shanna Riley
You do! Read more to find out what a firewall is, how it can keep you safe, and how to get one. A Firewall is, actually, pretty much the same as its non-tech definition. A firewall, in building construction, is set up to contain or prevent fire from traveling from one side of the wall to the... The same way we just went through! ... Both of the ways listed above will tell you if you are running Service Pack 2 (or sp2). ... Great! ... Ok, I'm running WinXP - how do I know if I have Service Pack 2?

WANS, LANS, WLANS and now WPANS (Wireless Personal Area Networks) by Eric Meyer
I know you know what a LAN (Local Area network) is and a WLAN (Wireless Local Area network) but do you know what a WPAN is…..? A WPAN is a personal area network which uses Bluetooth technology to connect everything from cell phones and ear pieces to key boards and desktops. ... As Bluetooth technology gains popularity the issue of security will have to be addressed. ... The most important thing is that the soldier won’t have a million wires to connect and get in his way during battle. ... The military is also experimenting with Bluetooth devices and PAN networking in creating smart suits...

Networking Basics by Kashif Raza
A network is a group of computers, printers, and other devices that are connected together with cables. The sharing of data and resources. Information travels over the cables, allowing network users to exchange documents & data with each other, print to the same printers, and generally share any... computers), AppleTalk (for Macintosh computers), and NetBIOS/NetBEUI (for LAN Manager and Windows NT networks) are the main types of network protocols in use today. ... Other LAN types include Token Ring, Fast Ethernet, Fiber Distributed Data Interface (FDDI), Asynchronous Transfer Mode (ATM)...