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56 Cards in this Set
- Front
- Back
A case that contains electronic components of the computer used to process data.
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System Unit
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It is the main circuit board of the system unit also known as the system board
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Motherboard
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A small piece of semiconducting material, usually silicon, on which integrated circuits are etched.
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chip
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Interprets and carries out the basic instructions that operate a computer.
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CPU
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A chip with 2 or more seperate processor cores
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Multi-core processor
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The component of the processor that directs and coordinates most of the operations in the computer.
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Control Unit
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Another component of the processor that performs arithmetic, comparison,and other operations.
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ALU (Arithmetic Logic Unit)
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A small quartz crystal circuit used to control the timing of all computer operations.
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System clock
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The pace of the System clock.
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clock speed
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(1) fetching (2) decoding (3) executing (4) storing
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The 4 steps in the Machine Cycle
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a number system that has just two unique digits, 0 and 1
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binary system
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the smallest unit of data the computer can process
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bit
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it provides enough different combinations of 0s and 1s to represent 256 individual characters and is the basic storage unit in memory
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byte
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consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data
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memory
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the type of memory that loses its contents when the power is turned off
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volatile memory
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the type of memory that keeps its content even when the power is off
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nonvolatile memory
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also called main memory, consists of memory chips that can be read from and written to by the processor and other devices
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RAM memory
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refers to memory chips storing permanent data and instructions
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ROM memory
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a small circuit board where RAM chips usually reside on
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memory module
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these things hold memory modules on the motherboard
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memory slot
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A process that stores frequently used instructions and data.
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Cache
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Helps speed the processes of the computer because it stores frequently used instructions and data.
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Memory Cache
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Built directly in the processor chip
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L1 Cache
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Is slightly slower than L1 cache but has a much larger capacity, ranging from 64 KB to 16 MB.
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L2 Cache
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Memory chips storing permanent data and instructions.
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ROM(Read-only memory)
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A type non-volatile memory than can be erased electronically and rewritten.
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Flash Memory
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Uses battery power to retain information even when the power to the computer is off.
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CMOS
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The amount of time it takes the processor to read data, instructions, and information from memory.
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Access Time
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One billionth of a second.
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nanosecond
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A socket on the motherboard that can hold an adapter card.
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Expansion slot
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A circuit board that enhances functions of a component of the system unit and/or provides connection to peripherals.
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Adapter card
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A nickname for an adapter card.
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Expansion card
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A device that connects to the system unit and is controlled by the processor in the computer.
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peripheral
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converts computer output into a video signal that travels through a cable to the monitor, which displays an image on the screen
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video card
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enhances the sound-generating capabilities of a personal computer allowing sound to be input through a microphone and other sound equipment
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sound card
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nickname for video card
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graphics card
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a removable flash memory device, usually no bigger then 1.5" in height or width, that you insert and remove from a slot in a pc or other system
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memory card
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the point at which a peripheral attaches to or communicates with a system unit so that the peropheral can send data to or receive information from the computer
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port
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can connect up to 127 different peripherals together witha single connector
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USB port(universal serial bus)
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it can connect multiple types of devices that require faster data transmission speeds to a single connector
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FireWire Port
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a special high-speed parallel port that allows you to attach peripherals
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SCSI port
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an external device that provides connections to peripherals through ports built into the device
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port replicator
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an external device that connects or attaches to a mobile computer or device, contains a power connection and provides connections to peripherals
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docking station
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electrical channel in which bits transfer internally within the circuitry of the computer
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bus
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part of the motherboard which connects the processor to cache
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system bus
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nickname for system bus
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front side bus
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connects the processor to cache
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backside bus(BSB)
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allows the processor to communicate with peripherals
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expansion bus
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an opening inside the system unit in which you can install additional equipment
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bay
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a rectangular opening that typically holds disk drives
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drive bay
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the component of the system unit that convert the wall outlet AC power into DC power
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power supply
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can of compressed air, lint-free antistatic wipes and swabs, screen cleaning solution, small computer vaccum, antistatic, wristband, small screwdrivers
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list of items to clean your computer
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turn off and even unplug, remove batteries, disconnect all cables from the ports
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step 1 of cleaning process of your computer
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use compressed air to blow away dust from any openings on the computer
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step 2 of cleaning process of your computer
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wipe with the antistatic wipe to clean the exterior of the case
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step 3 of cleaning process of your computer
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cleaning solution on a soft cloth to clean the screen
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step 4 of cleaning process of your computer
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