DEC VAXstation 3100 Owner's Manual page 200

online
Indicates that the power has been turned on and equipment and devices can
communicate with the system.
operating system
A collection of system programs that control the operation of the s3rstem and allow
the user access to data files, input/output devices, and applications programs. The
operating system software performs such tasks as assigning memory to programs
and data, processing requests, and scheduling jobs.
Optical disc
See compact disc.
output
Data that has been processed by the computer.
output device
A device that accepts data from the system. For esample, a printer.
password
The to an account. You use your password, in combination with your user
name, to start a session. The system checks your password to be sure you are
authorized to use the account.
periptieral device
A device that provides the CPU with additional memory storage or commxmication
capability. Examples are disk drives and printers.
ptiysical link
The electrical connection between two network nodes.
pixel
A picture element. A location on the monitor screen that can be selectively turned
on or off. The basic unit of a graphic display.
plotter
A device to construct visual representations of data by an automatic pen or pencil.
Plotters can also receive plotting coordinates from digital computers.
Glossary-! 4