column graph
)A type of presentation graphic in which numerical values are illustrated with horizontal columns. Column graphs are particularly effective for showing values that are categorized by two separate characteristics, such as year and sector.
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- combo drive
A combo drive refers to optical drives that are capable of recording and/or reading two or more types of optical media. As DVD drives were introduced, combo drives referred to those optical disk drives that combined CD media read and write capabilities with the capability to read DVD media. As the popularity of DVD media […]
- Comma-Delimited
(adj.) A type of data format in which each piece of data is separated by a comma. This is a popular format for transferring data from one application to another, because most database systems are able to import and export comma-delimited data. For example, data pulled from a database and represented in comma-delimited format looks […]
- Command
An instruction to a computer or device to perform a specific task. Commands come in different forms. They can be: special words (keywords) that a program understands. function keys choices in a menu buttons or other graphical objects on your screen Every program that interacts with people responds to a specific set of commands. The […]
- command buffer
A temporary storage area where commands are kept. (In DOS environments, the command buffer is called a template.) DOS and UNIX support several operations for manipulating the command buffer. For example, you can use the F3 function key in DOS to copy the template ‘s contents to the display screen. This is useful for repeating […]
- command driven
Refers to programs and operating systems that accept commands in the form of special words or letters. In contrast, programs that allow you to choose from a list of options in a menu are said to be menu driven. Command-driven software is often more flexible than menu-driven software, but it is more difficult to learn.