Here are a few terms you'll run into:
Application Files
Click
Close
Computer
Central Processor Unit (CPU)
Crash
Creating A File
Delete
Directory (AKA Folder, sub-directory)
Disk Space
Documents
Document Files
Double Click
Drag
Edit
File Cabinet
Folder (AKA Directory, Sub-Directory)
Folder Icons
Icons
Icon View
Keyboard
List View
Shows the icons but also orders the icons (often by name, but can sort the list in other ways) and shows more information about them.
Macintosh
The brand name of a family of personal computers (hardware) and an operating system (software) from Apple, introduced in 1984.
Megabytes
(Mb) Mega = million so Mb is 1,000,000 bytes. It's enough information for the computer to store one character (e.g. "h"), so 1mb text file = 1,000,000 keystrokes in that file. Just to confound the masses, although RAM and Disk Space do something completely different we measure both in megabytes. This leads to confusion.
MegaHertz (Mhz)
This stands for MegaHertz. A hertz is an electronics term. 1 hz = one cycle (or wavelength) per second. 1 megahertz = 1,000,000 cycles per second. In computer jargon, Mhz measures how *fast* your CPU chip runs. Although it's more important to know the chip than the speed, if you're comparing the same kind of CPU chip then a higher / faster CPU speed (measured in MHz) is better than a slower speed.
Menu
Displays a list of commands, some with images next to them.
Modifier Keys
Keys that change the meaning of what you type.
Mouse
Pointing device that allows you to tell the computer what to do.
Operating System (OS)
System software that allows your computer to work.
Pointer (AKA Cursor)
The name of the arrow (or other shape) that tracks across the screen as you move the mouse (or other pointing device) around.
Random Access Memory (RAM)
This stands for Random Access Memory. You can think of this as the "space" where you computer does its processing. The more space you have the more processes you can run at the same time. More RAM is always better than less. You can never have much RAM.
Recycle Bin
Place where you put files and folders that you may later want to delete or get rid of. Compare Trash.
Resize Box
Allows you to change the size and shape of a window.
Right click
To press the right button on the mouse. (This is Windows specific. On a Mac running System 8 or higher, you hold down the Control key and then click to get the same effect.)
Save
Tell the computer to create a file on disk that has the information you've put into the document (usually typing).
Save As
Give the file a name and/or store the file in a certain place.
Scroll bar
Allows you to move around through your document.
Shut down
To quit all applications and turn off the computer.
Software
Instructions that tell the computer what to do.
System files
Allows our computer to work.
Trash
Place where you put files and folders that you want to delete or get rid of.
Volume Icons
Devices that hold files and folders.
Windows 1)
The most widely used operating system for personal computers from Microsoft. (Software only. Other companies manufacture the hardware that runs the Windows Operating System.) Compare Macintosh. (Windows with a large "W".) 2) The thing you see on screen that contains a directory listing or the contents of a document. (Window with a small "w".) Links to more glossaries
Why reinvent the wheel? Here are some more glossaries to look at: Pretty good explanations of a lot of general computer terms. Including narative explanations of some issues (like "The Need for Speed"). http://www.microsoft.com/mac/glossary/default.asp > Microsoft's very brief glossary of some Macintosh (and general computing) terms. http://www.techweb.com/encyclopedia Quite a comprehensive you-put-in-a-term-and-we'll-define-it glossary. A bit technical in its langauge. http://wwwo.delphi.com/navnet/glossary/ Another quite complete and somewhat technical glossary. http://www.iserv.net/~alexx/glossary.htm A briefly annotated glossary of--glossaries! http://www.InstantWeb.com/foldoc/ Another term searcher. http://www.islanderis.net/html/body_dictionary.html A fairly brief glossary of Internet terminology, particularly. New Internet Glossary http://www.teachersfirst.com/glossary.htm A nice little glossary with pretty good, short explanations. Terms http://dewey.cps.k12.il.us/mentor1/terms/terms.htm