Upgrade to remove ads
How Computers Work
Terms in this set (40)
A base-2 number system that uses two digits, 0 and 1.
smallest piece of information used by the computer. The term is derived from "binary digit". In computer language, it is either a one (1) or a zero (0).
A series of of bits used to encode a letter, number, or a special character; usualy has 8 bits
A device used to accept, process, store, and get information.
information that is in the format that the computer reads which is 0's and 1's
One billion bytes (or charaters).
The physical parts that make up a computer system for example Keyboards, printers, monitors, and so on.
The step in the data processing flow during which data is collected and entered into the computer.
One million bytes
A measure of speed - one million cycles per second.
The Central Processing Unit of a computer or information processing device; the "brains" of the machine carrying out instructions, performing calculations, and interactions with the components used to operate the computer.
A computer output device that uses a display screen to present the processed information.
The main circuit board of a computer housing the CPU, primary memory (RAM) and providing the means of connecting all the components that make up the computer.
Computer generated informatios that is displayed to the user in some discernible form such as a screen display, printed page, or sound.
The smallest unit on a display screen grid that can be stored displayed or adressed
The computer's immediate internal memory, RAM and ROM - it is fast, easily accessible, but volatile - when the power goes out, it is lost.
The set of instructions given to the CPU needed to accomplish a given task.
Storage that is not involved in the processing of information. This type of storage is used to maintain the digital information for later use. Includes such storage devices as disk, tapes, and CD's
Programs or instructions that tell a computer exactly what to do.
Older, larger devices that controlled how electric current flowed. Computers used these to process digital information before microchips and transistors were invented.
stands for Random Access Memory; computer uses RAM to store instructions and data while it is running
CD ROM Drive
stands for Compact Disc Read-Only Memory Drive
a cycle, or clock tick, per second
stores zeros and ones in magnetic form, and reads them with an electromagnetic head
provides power, at the right voltage, to all of the different parts of the computer
a special device that transmits data to the monitor - some of these are design to help take the burden off of the CPU during graphics-intensive tasks.
The main computer program on your computer that directs all the activities and sets all the rules for how the hardware and software work together.
A computer program designed to perform a specific task, such as word processing or creating a spreadsheet.
A magnetic storage device that reads data from and writes data to a floppy disk, which is a metal disk (usually 3½ in.) inside a rigid plastic case. These are found mostly on older machines.
A storage location within the CPU used to keep track of bits and bytes - it stores data. It is manipulated directly by the Control Unit.
solid state drive
An electronic device with no moving parts. A storage device that uses memory chips to store data instead of spinning disks (such as those used by magnetic hard drives and CD drives)
A way to measure how well a computer works, measured in millions of instructions per second or millions of cycles per second
information recorded in a continuous stream of data, like sound waves on a record player or a graphic representation of earthquake energy (a seismometer).
Electronic Numerical Integrator and Calculator. An early computer weighing 30 tons and containing over 19,000 vacuum tubes. The U.S. Army built it in the 1940s and later used it for research and development of the hydrogen bomb.
A computer processing technology created by Bell Laboratories in 1947, characterizing second-generation computers, which replaced vacuum tubes for data processing.
Many transistors on a single chip of silicon; as they were made smaller, the complexity of the circuits could grow; otherwise known as a microchip
This scientist created a device called the "Difference Engine" in 1822 - it was supposed to be powered by steam and calculate large quantities of numbers, but it was never fully built by the inventor.
the british mathmetician who designed a computer that assisted in breaking the secret german codes during world war II
Graphical User Interface
A user interface that takes advantage of the video system's graphics capabilities for manipulated graphic elements that represent objects and tasks. First designed by Xerox, popularized by the Apple Macintosh computer.
Henry Edward Roberts
Father of the modern Personal Computer, created the Altair 8800, a predecessor to IBM PCs.
THIS SET IS OFTEN IN FOLDERS WITH...
Story of a Poem
Mini Med Final
YOU MIGHT ALSO LIKE...
Chapter 40: Medical Office Computerization
OTHER SETS BY THIS CREATOR