Data Into Info

15 cards·by jonesln

ASCII

An eight bit binary code that represents symbolic, numeric and alphanumeric characters. It is the most commonly used character set in PC’s.

Extended ASCII

An extension of the ASCII character set, it specfies the character values for 128-255

Arithmetic Logic Unit (ALU)-

This is a component of the CPU that handles arithmetic functions.

Binary Number System

system for representing the two states of a computer, which are on and off.

Expansion bus

connects external devices, such as keyboards, mouse, modem, and printer.

Extended Binary Coded Decimal Interchange Code (EBCDIC)-

This eight bit code defines 256 symbols and is used by IBM mainframe computers.

lands

The flat area on a CD-ROM that reflects the laser light into the sensor of an optical disc drive.

Parallel port

This is used to connect older printers to the computer, it is the most commonly used.

pits

This is the depressed area on a disc that scatters laser light.

platter

hard disks that are made of a rigid material such as aluminum, which allows items to be recorded magnetically.

Removable hot swappable hard drives

Removable hard disks that are used on high end workstations, they allow the user to remove one hard disk and replace it with another while t

sectors

A segment of a track on a disk

Serial port

are used to connect external modems

Universal Serial Bus (USB)-

This also called a hot swappable bus, it is used for storage, users can easily switch devices without rebooting the PC. Most users carry on

Virtual RAM

the process of swapping unused portions of RAM to hard disk storage.