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43 Cards in this Set
- Front
- Back
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binary system
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number system that has two unique digits: 0,1
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bit
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# system
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byte
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8 bits are grouped as a unit
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memory
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consists of electronic components that store instructions waiting to be executed by the processor data needed by those instructions
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volatile memory
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loses content when turned off
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nonvolatile memory
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does not lose content
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RAM Memory
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main memory consists of memory chips that can be read from and written to by the proceesor and other devices
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ROM Memory
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memory chips storing permanet data instructions
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memory module
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small circuit board
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memory slot
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slots on motherboard hold memory modules
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Cache
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improves processing time
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expansion slot
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socket on motherboard that can hold an adapter card
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adapter card
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circuit board that enhances functions of a componet of system unit
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peripheral
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device that connects to the syetm unit and is controlled by the processor in computer
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video card
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converts computer output into a video signal that travels through a cable to the monitor
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sound card
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enhances the sound generating capabilities of a personal computer by allowing sound input through a microphone
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hub
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device that plugs into USB port on system and contains many USB ports
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graphics card
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converts computer output into a video signal that travels thorugh a cable to monitor
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memory card
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removable flash memory device no bigger than 1.5 inches in height or width that you insert into a slot
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port
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point at which a peripheral attaches to or communicates with a sytem unit
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USB port
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universal serial bus: can connect up to 127 different peripherals together with a single connector
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fire wire port
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similar to USB port in that it can connect multiple types of devices that require faster transmission speeds
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SCSI Port
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allows you to attach SCSI peripherals such as disk drives and printers
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port replicator
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external device that provides connections to peripherals through ports built into the device
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docking station
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external device that attaches to a mobile computer or device and contains a power connection
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bus
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channel allows various devices on both inside and attached to system unit to communicate w/ eachother
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system bus
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part of motherboard and connects the processor to main memory
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front side bus
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part of motherboard and connects the processor to main memory
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backside bus
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connects power to cache
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expansion bus
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allows processor to communicate with peripherals
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bay
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opening inside system unit in which you instal different equipment
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drive bay
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rectangular opening that typically holds disk drives
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power supply
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component of system unit that converts the wall outlet AC power into DC power
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system unit
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case that contains electronic components are part of system unit
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motherboard
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electronic components and circuitry are connected to circuit board called motherboard
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chip
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small peice of semiconducting silicon that circuits are carved onto
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CPU
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interpets and carries out basic instrctions that operate a computer
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multi-core processor
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chip with two or more seperate processor cores
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control unit
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component of processor directs and coordinates most of operations in computer
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ALU
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arithmetic logic unit, performs arimetic comparison and operations
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System Clock
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control timing of computer operations
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clock speed
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pace of system clock
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gigahertz
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billion ticks per second
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