Glossary 109
character: Any letter, number or symbol you can use on the computer. Some characters are
Class 1: A standard for fax transmission. The Toshiba internal modem supports class 1.
choose: To use the mouse or keyboard to select a menu item, a button or an icon.
click: To press and release a mouse button. In the Windows® operating system, refers to the left mouse button, unless otherwise stated.
COM1 and COM2: Names that the operating system gives the computer’s serial ports to distinguish between them.
commands: Instructions that tell the computer and its devices what to do. You can enter commands individually using the keyboard or pointing device or combine them into macros or programs.
Command state: A state in which data from the personal computer is received as commands to control the internal modem. Data from the personal computer will not be output to the telephone line.
Compression: The translation of data (video, audio, digital or a combination) to a more compact form for storage or transmission. In computer terms, files are compressed by removing repetitive and blank characters. Depending on the type of file, this can result in a size reduction of over 90%. Modems use compression to reduce the amount of time needed to send or receive a file.
Configuration: 1) The set of components in a computer system (such as memory, printers and disk drives). 2) How parts of the system are set up. For example, the configuration of the serial port includes the baud rate, parity, data bits and stop bits.
CTS signal: A Clear to Send signal is an