byte: the smallest unit of information meaningful to a computer, usually equal to one character.

floppy disk: a thin, flexible, plastic disk coated with magnetic material and enclosed in a protective sleeve used to store information for computers. Floppy disks come in two sizes (3.5 inch and 5.25 inch) and in four capacities (360K, 720K, 1.2Mb and 1.4Mb).

hypertext: a computer technique that links a series of related texts and graphics and allows for swift movement between them.

hard disk: a rigid metal disk or disks coated with magnetic material enclosed in a protective metal sing used to store information for computers. They vary in capacity from 20Mb to 500Mb or larger.

hardware: a computer’s components: keyboard, monitor, memory chips, processor, power supply, printer, etc.

kilobyte (K): a measure of a computer’s storage capacity; 1,024 bytes.

Megabyte (Mb): a measure of a computer’s storage capacity; 1,048,576 bytes.

software: the instructions designed to be carried out by a computer; also called a computer program.

windows: discrete sections of a computer screen, each of which may be used to display information from different files, or parts of files, simultaneously.