Computer Lab Glossary Flashcards
Back up
A duplicate of an original program or data made as a precaution against loss or damage of the original. Ex: Flash drive
Bit
The smallest amount of information a computer can store. Computers must use information in this form because the electronic circuits they are made of can have only two states: on or off.
Byte
The space a character, letter, or number takes up in the computer. it is made up of a group of eight bits
CPU– Central processing unit
A.k.a. control unit. The unit of the computer systems that contains the circuits which control the functions and perform the execution of instructions; composed of the following three parts: memory (primary storage), arithmetic/logic unit, and the control unit.
Cd ROM
Compact disc read only memory; a compact disc from which stored data can be read by a laser beam
Computer
A device that manipulates data according to a series of instruction stored in its memory. Electronic device that can except data, perform instructions on the data, and deliver the results of the processed data.
Computer system
And organization of hardware and software designed to accomplish a data processing function
Customer software
the user tells the programmer what he/she wants to be able to do and the programmer writes a set of instructions to perform a specific task for the particular user.
Data
Information that the computer manipulates
Database
And organized collection of related data
Data input
The process of entering data into the computer system
Data processing
Any procedure for receiving information and producing a specific result. The rearrangement and refinement of raw data into a form suitable for further use.
Desktop publishing
The use of a computer to design and print typeset documents
Disc/media drives
A thin disk of magnetic material capable of storing a large amount of information
Fixed/hard disk
A device containing a sealed, rigid magnetic disk and read/write mechanism, usually built directly into the computer
Format
To prepare a new disc for use by the computer or an old one for reuse. erases all previous information.
Hardware
The physical equipment or device which makes up the computer system, including its input and output devices. Everything except the programs in the computer system.
Input
The information that is entered into a computer from an outside source. Data entered into the computer system for processing
Input device
A mechanical unit designed to bring data to be processed into a computer
Integrated software
A set of several different applications that have been program together, permitting data from one application program to be transferred directly to another