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CPS - Office Systems & Technol
Chapter 2 - Hardware for Computer Operations
23
Other
Not Applicable
09/26/2005

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Term
BIT
Definition
TWO STATE (BINARY) CONDITION WHIERE (1) IS FOR "ON" AND (0) IS FOR "OFF" - AKA BInary digiT.
Term
BYTE
Definition
A STRING OF BITS REPRESENTING A NUMBER, CHARACTER OR SYMBOL.
Term
CPU (CENTRAL PROCESSING UNIT)
Definition
HEART OF COMPUTER SYSTEM CONTAINING CONTROL UNIT AND ARITHMETIC/LOGIC UNIT.
Term
CHANNEL
Definition
NECESSARY COMMUNICATION LINK - CONTROLS DATA FLOW BETWEEN PRIMARY STORAGE IN THE PROCESSOR AND THE STORAGE DEVICE.
Term
COMPACT DISK (CD)
Definition
USE OPTICAL DISK TECHNOLOGY AND UBCKYDE RANDOM ACCESS MEMORY (CD-ROM)
Term
GRAPHICAL USER INTERFACE (GUI)
Definition
ALLOWS USER TO POINT & CLICK / POINT & DRAG ICONS OR BUTTONS TO ACTIVATE SOFTWARE FUNCTIONS.
Term
HARD DISK
Definition
FIXED, NON-REMOVABLE MAGNETIC DISK USED FOR STORAGE. CAPACITY RANGES FORM 20 GB - 250 GB.
Term
INTERFACE
Definition
COMBINATION OF HARDWARE AND SOFTWARE THAT MAKES INPUT EASIER.
Term
MAGNETIC DISK
Definition
SECONDARY STORAGE PERIPHERAL,REMOVABLE FROM DISK DRIVE - MAKES DATA PORTABLE TO ANY OTHER COMPUTING ENVIRONMENT.
Term
MAINFRAME COMPUTER
Definition
PROCESSING SPEEDS > 1 TRILLION INSTRUCTIONS PER SECOND, STORAGE IN GIGABYTES, CAN SUPPORT THOUSANDS OF ONLINE COMPUTERS THROUGH LARGE NETWORKS.
Term
MICROCOMPUTER
Definition
DIGITAL COMPUTER THAT USES AN INTERNAL STORAGE CHIP, AN INPUT/OUTPUT CHIP, AND OTHERS AS REQUIRED.
Term
MICROPROCESSPR
Definition
INCLUDES CONTROL UNIT AND ARITHMETIC LOGIC UNIT MOUNTED ON A SINGLE SILICON CHIP.
Term
MID-RANGE COMPUTER
Definition
LESS POWERFUL THAN A MAINFRAME. TWO TYPES ARE MINICOMPUTERS AND SERVERS.
Term
MONITOR
Definition
AN OUTPUT DEVICE MAKING INFORMATION AVAILABLE TO USERS.
Term
OPTICAL DISK
Definition
USES A LASER BEAM OF LIGHT TO STORE AND READ DATA.
Term
PATTERN RECOGNITION SYSTEM
Definition
VISUAL SYSTEM THAT REQUIRES A CAMERA TO BE COMPUTER'S EYES.
Term
PERSONAL DIGITAL ASSISTANT (PDA)
Definition
HAND-HELD DEVICE WITH PEN-BASED WRITING RECOGNITION TO SEND AND RECEIVE E-MAILS.
Term
POINT-AND-CLICK DEVICES
Definition
REQUIRES USED TO PHYSICALLY MOVE ENTIRE MOUSE ON PAD OR DESKTOP, THUS MOVING CURSON ON THE SCREEN.
Term
PORT
Definition
CONNECTION POINT BETWEEN WHERE PERIPHERAL COMMUNICATION LINE IS CONNECTED.
Term
PRIMARY STORAGE
Definition
SEMICONDUCTOR MEMORY CHIPS ARE SILICON CHIPS CONSISTING OF INTEGRATED CIRCUITS MADE OF MILLIONS OF TINY TRANSISTORS AND DIVIDED INTO ROM - RAM AND CACHE MEMORY.
Term
RAM (READ-ACCESS MEMORY)
Definition
TEMPORARILY AVAILABLE FOR PROCESSING BUSINESS DATA ACCORDING TO SOFTWARE INSTRUCTIONS.
Term
ROM (READ-ONLY MEMORY)
Definition
NON-VOLATILE MEMORY WHERE CRITICAL SYSTEM INSTRUCTIONS FOR STARTING THE COMPUTER ARE PERMANENTLY STORED.
Term
RISC (REDUCED INSTRUCTION SET COMPUTING)
Definition
ENHANCED SPEED OF MICROPRESSORS BY EMBEDDING MOST FREQUENTLY USED INSTRUCTIONS ON A CHIP.
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