Dictionary of computer terms may help you with your definitions.

 

31. install - A program usually must be installed before it can be run. You install a program from a disc (e.g. a CD) or from an installer file that you download from the Internet.
32. Internet - The Internet is an international network that connects computer systems together. Internet refers to the physical cables and other network connections and used to transmit email, web sites and other computer-related services.
33. ISP - ISP stands for Internet Service Provider. An Internet Service Provider is a company that provides a means for its customers to connect to the Internet, generally for a monthly fee. Examples of ISPs are Earthlink, AOL, MSN, etc.
34. legal use of software - Software programs are almost always accompanied by a user license agreement that specifies the legal use of the software. For example, most software allows you to only legally use one copy of it on one computer.
35. local drive - A local drive is a drive that is physically connected to the computer, either internally or in an external enclosure next to the computer, as opposed to a network drive, which is connected to another computer and accessed via a network connection.
36. Macintosh (Macs) vs. Windows-based computers - Macintosh computers are made by Apple Computer Company, who make both the hardware and software. Windows-based computers run an operating system made by Microsoft Corporation, and the hardware can be made by many manufacturers.
37. measurement of CPU speed (gigahertz, megahertz) - Hertz is a unit that represents cycles per second. One megahertz equals a million cycles per second and a gigahertz equals a billion cycles per second. Both terms are used to describe how many cycles of operations a computer can perform in a second, which is one indication of a computer's speed (but not the only indication).
38. measurement of hard disk drive space (gigabyte, kilobyte, megabyte, terabyte) - A byte is 8 bits, or a collection of eight ones and zeroes, and a byte is the amount of memory required to hold one character (a letter, number, etc.) in a text file.. The prefixes kilo-, mega-, gig- and ter- represent approximately a thousand, million, billion and trillion bytes, respectively. For example, a 20 gigabyte disk could hold about 20 billion bytes (or characters) of data.
39. Microsoft Excel - Part of Microsoft Office. A spreadsheet program.
40. Microsoft PowerPoint - Part of Microsoft Office. A presentation program.
41. Microsoft Word - Part of Microsoft Office. A word processing program.