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50 Cards in this Set
- Front
- Back
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System Unit
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a case that contains electronic components of the computer
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motherboard
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the main circut board of the system unit
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chip
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a small piece of semiconducting materail usually silicon on which integrated circuts are etched.
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CPU
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interprets and carries out the basic instructions that operate a computer
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Multi-core processor
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a chip with 2 or more seperate processor cores
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Control Unit
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the component of the processor that directs and coordinates most of the operations
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ALU
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component of the processor performs arithmetic, comparison, and other operations
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System Clock
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controlls the timing of all computer operations
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clock speed
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measured by the number of ticks per second
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binary system
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a number system that has just two unique digits
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bit
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the smallest unit of data the computer can process
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byte
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provides enough different combinations of 0s and 1s to represent 256 individual characters
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memory
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consists of electronic components that store instructions waiting to be executed by the processor
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volatile memory
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losses its content
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nonvolatile memory
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does not lose content when power is off
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RAM memory
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consists of memory chip that can be read from and written to
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ROM memory
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memory chips storing permamnent data and instructions
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Memory module
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small circut board
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memory slot
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on the motherboard hold memory modules
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cache
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helps speed the processof the computer
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L1 cache
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built firectly in the processor chip
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L2 cache
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slightly slower than L1 cache but has more capacity
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ROM
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read-only memory
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flash memory
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type of nonviolatile memory that can be erased electronically and rewritten
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CMOS
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uses battery power to retain information even when power is off
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Access time
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the amount of time it takes the processor to read data from memory
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nanosecond
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one billionth of a second
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expansion slot
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a socket on the motherboard that can hold an adapter card
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adapter card
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a circut board that enhances functions of a component of the system unit
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flash memory
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type of nonvolatile memory that can be erased electronically and rewritten
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peripheral
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a device that connects output into a video signal that travels through cable
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video card
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converts computer output into a video signal that travels through cable
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sound card
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enhances the sound-generating capabilities of a personal computer
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hub
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a device that plugs in. Multiple fireware ports
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graphics card
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a video card
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memory card
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a removable flash memory device
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port
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the point at which a peripheral attaches to or communicates with a system unit
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USB port
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can connect up to 127 different peripherals
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FireWare port
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can connect multiple types of devices that require faster transmission speeds
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SCSI port
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allow you to attach SCSI preipherals
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port replicator
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an external device that provides connections to peripherals
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docking station
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external device that attaches to a mobile computer or device
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bus
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allows various devices both inside and attached to the system unit to communicate with each other
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system bus
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part of the motherboard and an expansion bus
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front side bus
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FSB, same as system bus
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backside bus
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connects the processor to cache
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expansion bus
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allows the proccessor to communicate with peripherals
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bay
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an opening inside the system unit in which you can install additional equipment
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drive bay
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a rectangular opening that typically holds dish drives
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power supply
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the component of the system unit that converts the wall outlet AC power into DC power
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