Technology

SMDS, or Switched Multimegabit Data Service, has not yet gained significant market penetration, although it has begun to experience some growth. SMDS was viewed as a stepping stone to ATM, since some of the communications equipment and media are common to the two technologies. As SMDS is not available everywhere, and there is more interest in ATM, SMDS has had a hard time getting into the mainstream. SMDS does, however, have some penetration; if your long-distance carrier is MCI, you may have cause to use this technology. The attraction of SMDS is that it has the potential to provide high-speed, link-level connections (initially in the 1 to 34 Mbps range) with the economy of a shared public network, and exhibits many of the qualities of a LAN. ...

As part of my college project work, I am developing a secure network at a medium sized office. Last week I completed the configuring of the wi-fi router with the normal protocols as well as some security features. Prior to developing the physical network, I tested the network with all its preferences in two different network simulators for its successful working (mainly for the IP address assigning). Let me describe you the techniques which I used in the router configuration – ...

What is HDLC? HDLC stands for High-Level Data Link Control protocol. Like the two other WAN protocols mentioned in this article, HDLC is a Layer 2 protocol. HDLC is a simple protocol used to connect point to point serial devices. For example, you have point to point leased line connecting two locations, in two different cities. HDLC would be the protocol with the least amount of configuration required to connect these two locations. HDLC would be running over the WAN, between the two locations. Each router would be de-encapsulating HDLC and turning dropping it off on the LAN. ...

Do you know about the Android App Inventor service by Google? (Yes, it was developed by Google, but they took back the support last month, and is now in the hands of Massachusetts Institute of Technology.) It allows anyone, including people unfamiliar with computer programming, to create software applications for the Android operating system (OS). It uses a graphical interface, very similar to Scratch and the StarLogo TNG user interface, that allows users to drag-and-drop visual objects to create an application that can run on the Android system, which runs on many mobile devices. ...