Monday, January 22, 2001		Bits & Bytes

Data carrier detect: Data carrier detect or DCD is the hardware signal defined by the RS-232-C specification that indicates that a device such as a modem is online and ready for transmission.

Animated GIF: Animated GIF refers to a single GIF file composed of several images and animated. Animated GIFs are supported by most browsers but are limited in their flexibility and control. However, animated GIFs generally have a smaller file size than other animation files, such as Java Applets or QuickTime movies. It is currently the most popular animation method for the Web.

Half duplex: Half duplex refers to the data transmission that can occur in two directions over a single line, but only one direction at a time, whereas the opposite of half duplex is full duplex, which means the ability of a device or line to transmit data simultaneously in both directions.

Pixel: Pixel is a single point in a graphic image. Computer monitors divide pictures displayed into thousands or millions of pixels, arranged in rows and columns on the screen and squeezed closely together to form a cohesive image.

Telnet: Telnet is one of the TCP/IP applications that lets you log in to remote computers on the Internet.

IP switching: IP switching is a new technology designed to address the need for faster throughput between separate subnets or VLANs. IP switching retains the control functions of routing while leveraging the wire-speed forwarding capabilities of switching. This approach offers the ability to scale to gigabit network requirements.