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47 Cards in this Set
- Front
- Back
system unit
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case containing electronic components of a computer
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motherboard
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system board, main circuit board of the system unit
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chip
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small piece of semiconducting material where integrated circuits are etched
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CPU
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central processing unit, interprets and carries out basic instructions that operate a computer
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multi core processor
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chip with 2 or more seperate processor cores
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control unit
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compnent of processor that directs and coordinates most of the operations in a computer
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ALU
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arithmetic logic unit, performs arithmetic and other operations
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system clock
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controls timing of all computer operations
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clock speed
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measured by number of ticks per second, pace of system clock
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binary system
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number system with 2 unique digits, 0 and 1
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bit
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short for binary digit, provides enough combos to represent individual characters
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byte
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groups of 8 bits, enough to represent 256 characters
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memory
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electronic components storing instructions
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volatile memory
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loses its content when computer is powered off
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nonvolatile memory
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keeps its contents when computer is powered off
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RAM
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random access memory. memory chips read from and written to by rocessor, volatile
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ROM
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read only memory, memory chips storing permanent data and instructions. nonvolatile
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memory module
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small circuit board
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memory slot
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holds memory modules, located on Motherboard
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cache
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helps computer improve processing time
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L1 cache
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small capacity, built into processor chip
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L2 cache
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larger capacity, slightly slower
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Flash Memory
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nonvolatile, can be erased electronically and re written
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CMOS
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complementary mental oxide semiconductor, uses battery power to retain info, provides high speeds with little power
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access time
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amount of time it takes the processor to read 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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socket on MB that can hold adapter card
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adapter card
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circuit board enhancing funcitons or connecting peripherals
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video card
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converts computer output into video signal tht travels throughj a cable to a monitor then displays on screen
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sound card
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enhances sound on computer
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hub
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plugs into USB port and contains multiple USB ports
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graphics card
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same as video card
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memory card
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removable flash memory device, inserted into a slot in a computer
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port
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point at which peripheral attaches to system
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USB port
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universal serial bus, connects up to 127 different devices together with single connector
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firewire port
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allows connection of 63 devices together
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SCSI port
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allows attachment of SCSI peripherals
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port replicator
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external, attaches to mobile
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docking station
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provides power connection
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bus
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attaches MB to dock
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system bus
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connects processor to main memory
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front side bus
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main memory on MB
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backside bus
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connects processor to cache
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expansion bus
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wires allowing computer expansion
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bay
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allows intalling of additional equipment
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drive bay
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holds disk drives
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power supply
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connects to wall outlet
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