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C2 Vocabulary 005 3

QuestionAnswer
Computer System The computer and other support devices that work as a team to receive information as the user inputs it, process that information per the directions that the user defines, and output the information in a usable format.
CPU Processing the information takes place in the central processing unit.
The Control Unit What retrieves the instructions and sends command signals to the rest of the computer system to tell them what to do?
ALU The arithmetic logic unit performs the mathematical calculations that are required in many data processing programs.
Memory Unit Stores information and is internal to the computer as well as divided into two types of memory: RAM and ROM
RAM Random access memory is temporary memory that is designed to hold new data and is available only while the computer is turned on.
ROM Read-only memory is permanent internal memory inside the system that is inaccessible by the user and is used to store the instructions that are installed or programmed at the manufacturer.
bit The smallest unit of binary information (a zero or one).
byte Eight bits make a byte, which can represent one alphabetic (A,B,C) or one numeric (1,2,3) character of information.
kilobytes, megabytes, and gigabytes measurement of computer memory
Megahertz/Gigahertz Megahertz, which equals one million cycles per second or gigahertz, which equals one billion cycles per second.
cache Provides a temporary storage area that provides a quick access to information.
Input devices keyboards, mice, scanners, graphic tablets, microphones, digital cameras, web cameras, electronic whiteboards, PDAs, "clickers", and cell phones all allow the input of data into the computer.
peripheral devices To input the information, output the information into a form that is easily read by the user, or store the information for later use.
Resolution the clarity of the image that is seen on the computer screen.
Created by: dylanburd
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