Floppy Drive CD-ROM Drive Ports Other Peripherals Printer, Monitor, Modem, Keyboard, Mouse, Trackball, etc. Computer Data Computers use and store data in binary form - Zeros and ones. 1 bit is the smallest unit of information. 1 byte normally equals 8 bits. The representation of one character.
Computer files can be software or data, or a combination of both.
Floppies - up to 1.44 megabytes, slowest access to data. CDs - Digital Audio, read only. When a disk drive's light is on, the claw is either writing to or reading from the disk. If you have problems writing to your disk, check the write-protect tab on the disk. Do not try to access a CD-ROM drive before its light switches on.