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49 Cards in this Set
- Front
- Back
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System Unit
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a case that contains electroinic components of the computer used to process data
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Mother board
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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 material on which intergarated circuits are etched
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CPU(Central processing unit)
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interpets 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 separate processor cores
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Control Unit
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the component of the processor that directs and coordinates the operations of the computer
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ALU(Arithmetic logic unit)
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a component of the processor that performs artmetic, comparison, and other questions
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System Clock
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a small quartz cyrstal circut that controls the timing of all the computer's operations
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Clock Speed
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the pace of the system clock, measued by ticks
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binary system
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a number system with 2 digits, 0 and 1, called bits
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bit
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(binary digit) smallest unit of data in a computer
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byte
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8 bits
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memory
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consists of electronic components that store instructions
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volatile memory
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memory that can be lost if the computer turns off
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nonvolatile
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memory that can't be lost if the computer turns off
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RAM (random acsess) memory
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consists of memory chips that can be read from the processor
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ROM (read only)memory
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to memory chips storing permanent data and instructions
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memory module
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a small circut board
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memory slot
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on the mother board, holds memory modules
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Cache
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helps speed the process of the computer because it stores frequently used data
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L1 Cache
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is built directly in the processor chip
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L2 Cache
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is slightly slower than the L1 cache but has a larger capacity
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Flash memory
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a type of nonvlatile memory that can be erased and rewritten
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CMOS
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a complementary metal-oxide semiconductor technology
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Acsess time
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the amount of time it takes the processor to read data and information
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nanosecond
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1 billionth of a second
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expansion slot
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a socket on the mother board that can hold a adapter card
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adapter (expansion) card
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a circut board that enhaces functions of a compenent of the system unit
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flash memory
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nonvolatile memory that can be earsed and written
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peripheral
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a device that connects to the system unit and is controlled by the processor
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video card
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(graphics cards) converts computer output into a video signal that goes to the monitor
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sound card
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enhaces the sound generating capibitles of a computer
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hub
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a center of activity for a network
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graphics card
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same as video card
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memory card
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a removable flash memory device that you can insert and remove and remove from a slot
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port
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the point at which a peripheral attaches to a system
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USB (universal serial bus)port
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can connect up to 127 different peripherals together with a single connector
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Fire Wire port
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can connect multiple types of devices that require faster transmission speed
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SCSI port
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allows you to attach SCSI peripherials
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port replicator
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an external device that provides connections to peripherals through ports
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docking staion
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an external device that attaches to a computer or device
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bus
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allows devices attatched to the system unit to communicate
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system bus
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part of the motherboard connects processor to main memory
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frontside bus
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same as system bus
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backside bus
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connects processor to the 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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an opening inside the system unit in which you can install additional equiptment
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drive bay
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a rectangular opening that typically holds disk drives
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power supply
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is the component of the system unit that converts the wall outlet AC into DC
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