port
A connection point on your computer where you can connect devices that pass data into and out of a computer. For example, a printer is typically connected to a parallel port (also called an LPT port), and a modem is typically connected to a serial port (also called a COM port).

PostScript
A page-description language (PDL), developed by Adobe Systems for printing on laser printers. PostScript offers flexible font capability and high-quality graphics.

partition
A portion of a physical disk that functions as though it were a physically separate disk. After you create a partition, you must format it and assign it a drive letter before you can store data on it.

refresh rate
The frequency with which the video screen is retraced to prevent the image from flickering. The entire image area of most monitors is refreshed approximately 60 times per second.

registry
A database repository for information about a computer's configuration. The registry contains information that Windows continually references during operation such as:

Profiles for each user , the programs installed on the computer and the types of documents that each can create, property settings for folders and program icons, what hardware exists on the system, which ports are being used, the registry is organized hierarchically as a tree, and it is made up of keys and their subkeys, hives, and entries.