Computer Vocabulary

Analog computer

A computer that uses moving parts to show changing information

Arithmetic Logic Unit (ALU)

The component of a Central Processing Unit (CPU) responsible for the performance of arithmetic and logical operations

Artificial intelligence

The ability of a computer to perform tasks that usually requires human intelligence


A translating program used to convert assembly language to machine language


A simple programming language, BASIC stands for Beginner’s All-purpose Symbolic Instruction Code.

Binary system

The number representation system, used in computers, with only two digits, 0 and 1


A computer program used to move around the Internet


A unit of information in a computer that stands for a letter, number, or symbol. A byte usually consists of eight bits.


Short for Compact Disc Read Only Memory. CD-ROM stores data for computers.


A single letter, number or symbol. In computers, a character is the same as a byte.


A tiny, flat piece of silicon with a complete electric circuit on it. A chip stores and processes data in a computer.


A high level commercial programming language

Compact disc

A flat, round, plastic disk that is often called a CD. A compact disc records sounds in a spiral track containing millions of tiny pits.


A program which translates a source program written in a high level language into a low-level language


A high speed machine for calculating and handling information


Short for Central Processing Unit. CPU is the heart of a computer. It receives instructions from the user and then guides the computer’s operations


A symbol that moves on a computer screen to mark a position


Everything that can be seen or heard through a computer


To correct a problem in a computer’s hardware or software


To remove a character, data, or a file from a computer’s memory or disk

Digital computer

A computer that uses numbers to present information or measurements


A file of data or text that is stored in the computer’s memory


Short for Disk Operating System. A program that directs a computer


To move a computer file from one computer to another or to a disk


Short for electronic mail. A message sent from one computer to another


A document or complete unit of data stored in a computer’s memory or on a disk.

Floppy disk

A flat magnetic disk that stores information for computers


A complete set of type. Each font contains letters, numbers and symbols of one style.


Formula Translating System. FORTRAN is a high level programming language

Hard copy

Output from a computer that is printed on a page

Hard disk

The main memory or storage medium within a computer

Hybrid computer

A type of computer that combines the best features of analog and digital computer


A computer link between related bits of information. Hypertext makes it possible to quickly jump from one topic to another


Data that are entered into a computer


Connection between two parts of a computer


A worldwide computer network made up of many smaller networks

Local Area Network (LAN)

A relatively inexpensive, simple communication system linking a number of computers within a defined small locality


The term used to represent 1 million bytes of storage


A list of possible operations and functions

Mobile Broadband

Mobile broadband allows you to do all the things you usually use your broadband connection for without needing a fixed-line telephone connection. This means you can access the internet while you’re on the move; on public transport, away from home, on holiday, or at university. Mobile broadband can be accessed with a number of devices, including mobile phones, dongles and data cards.


The display screen that shows the output of a computer


The main circuit board in a computer. The motherboard contains the CPU.


A handheld device that moves the cursor on the monitor

Personal computer

A small computer used by one person at a time. Personal computer is often shortened to PC. Also called microcomputer.

Random Access Memory (RAM)

Main memory of a computer. Information can be read from and written to RAM by the user and therefore it is called read/write memory

Read Only Memory (ROM)

ROM is part of a computer’s memory that contains data and instructions that cannot be changed.


The instructions that direct a computer to perform many tasks

Manjusha Nambiar

Hi, I am Manjusha. This is my blog where I give English grammar lessons and worksheets.

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