A device that accepts input, processes data, produces output, and stores information.
Information fed into the computer system.
To carry out operations on data or programs.
Useful information that leaves the system.
Raw material ready for processing.
data that has been processed and turned into useful facts.
Area of the computer that holds data on a permanent basis.
Measure speed of the central processing unit (CPU).
1 million cycles per second.
1 billion cycles per second.
The basic unit of an image.
Amount of pixels on the screen - the more pixels, the better the resolution.
Area of the computer that temporarily holds data or information that is waiting to be processed.
1 thousand bytes.
1 million bytes.
1 billion bytes.
1 trillion bytes.
Physical parts of the computer (mouse, keyboard, printer, CPU).
A program that instructs the computer what to do.
A program that controls some aspect of the operation of a computer. Examples: operating system, compiler, utility program.
A program that carries out user defined tasks. Examples: word processing, spreadsheet, presentations, a game, etc.
Starting up the computer.
A small program on the hard drive that tells the computer how to begin loading programs.
Binary or base 2 Numbering System
A method for representing letters or numbers using only two digits, 0 and 1 - most basic level of communicating with computers.
A number assigned to each letter and character in the alphabet.
Each 0 and 1.
Personal computer or microcomputer
A personal computer based on a micro processor.
Personal computer that fits on a desk - more power and storage for less cost than a laptop.
A portable computer - all components contained within the laptop.
A desktop computer that is part of a Local Area Network.
Large, expensive computer able to process data for thousands of users at the same time.
Fastest, most powerful computers available.
Provides services to other computers over a network
Personal Digital Assistant. Small portable device with network capabilities.
A cell phone that offers many features including internet access and applications (apps).
A wireless, portable personal computer which uses a touchscreen.