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46 terms

computer terms

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ASCII
American Stanard Code for Information Interchange
Binary
Anything that has only two states such as on/off or yes/no
Binary code
A coding system that relies on the use of bits-0s and 1s-to encode
Binary digit
Either character used in the binary number system,so a 0 or a 1
Bit
A binary digit, a 0 or a 1
Byte
A grouping of eight adjacent binary digits or bits,0s and 1s,operated on by the computer as a single unit
Character
A single letter, digit, or special symbol such as ?,#,or *
Chip
An intergrated circuit.A thin piece of silicon that contains all the components of an electronic
Computer
A device used to accept, process, store, and get information
Digital Information
Information that can be expressed in a numerical form. the computer uses the binary number system for this purpose so 0s and 1s are used to express all the information entered into the computer
Disk Drive
The device used to store data on a disk and to read what is stored on this disk
Expansion Slot
A connector inside a computer designed to allowa user to add
Floppy Disk
A reuseable magnetic storage medium that uses a thin mylar circular disk as a storage surface
Format
To prepare a disk so that data is stored on it by a particular computer system
Gigabyte
One billion bytes (or chartecters)
Graphics
Pictures or illustrations on a page
Hard Copy
Outputthat is printed on paper
Hard Disk
A rigid disk, usually metal, encased in a hard disk dri~ or in a plastic case or cartridge
Hardware
The physical parts that make up a computer system-for example,keyboards,printers ,monitors, and so on
Input
The stepin the data processing flow during which data is collected and entered into the computer
Intergrated circuit
Circuitry whose parts are etched together on a small silicon chip less than one-forth of an inch square
Keybord
Aninput device that usually has keys like those on a typewriter
Kilobyte
1,024 storage unit (1,024 bytes) often rounded to 1,000;a measure of computer memory
Megabyte
One million byte (or characters)
Megahertz
A measure of speed,one million cycles per second
Memory
A place to store information;usually coded in a binary format;see RAM,ROM
Microprocessor
The main processing unit of a computer or information processing device;the "brains" of the machine carrying out instructions,preforming calculations,and interacting with components use to operate the computer.Handles the fetch,decode and execute steps of the computer
Monitor
A computer output device that uses a display screen to present the processed information
Motherboard
The main circuit board of a computer housing the microprocessor and providing the means of connecting all the components that make up the computer
Mouse
A computer input device used as a pointing and drawing instrument by selecting specific positons on the monitor display
Output
The computer generated information that is displayed to the user in some discernible from such as a screen display,printed page,or sound
Peripheral device
A device that is attached to the computer and aids in inputs and/or output
Pixle
An individual copy of light on a display screen that can be lit by a programming command
Primary storage
The computer`s immediate internal memory,RAM and ROM
Printer
A machine that prints characters or other images on paper
Processing
The second step of data processing flow in which the computer acts on data
Program
A set of step-by-step instructions that tell a computer how to do a certain task
RAM
Random Access Memory
ROM
Read Only Memory
Scanner
A macine that changes images from paper or photos to digital form the computer can use
Seconadry storage
All storage materials other than primary memory
Silicon chip
A small piece of sillicon on which crcuitsw are etched
Soft copy
A temporary display of output seen on a monitor
Software
Programs,or instructions,that tell a compuer exactly what to do
Tansistor
A solid device that controls electric current flows without using a vacuume tube
Vacuum tube
Glass bulbs like light bulbs that electricity passes through. They can be found in old radios and TVs.