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49 Cards in this Set

  • Front
  • Back
system unit
a case that contains electronic components of the computer used to process data
the main circuit board of the system unit
a small piece of semiconducting material on which integrated circuits are etched
CPU/ Central Processing Unit
intercepts and carries out the basic instructions that operate a computer
Multi-Core Processor
a chip with two or more seperate processor cores
Control Unit
the component of the processor that directs and coordinates most of the operations in the computer
ALU/Arithmetic Logic Unit
another component of the processor, performs arithmetic, comparison and other operations
system clock
crystal that processors rely on to control the timing of all computer operations
clock speed
the pace of the system clock
binary system
a number system that has just two unique digits, 1 and 0, called bits
the smallest unit of data that a computer can process
a unit created when 8 bits are combined
consists of electronic components that store instructions waiting to be executed by the processor,data needed by those instructions and the results of processing data
volatile memory
temporary memory lost when power is turned off
nonvolatile memory
permanent memory
RAM memory
consists of memory chips that can be read and written to by the processor and other devices
ROM memory
memory chips storing permanent data and instructions
memory module
a small circuit board with RAM chips attached
memory slot
slot on the motherboard that holds memory modules
a way to improve processing time
L1 cache
built directly in the processor chip
L2 cache
it is slightly slower than the L1 cache but has a much larger capacity
ASCII/ American Standard Code Information Interchanging
system to change binary code to alphabet
nonvolatile memory
flash memory
a type of nonvolatile memory that can be erased electronically and rewritten
high speed processing and efficient on power chip that retains info even when power is off
Access Time
the amount of time it takes the processor to read data, instructions and information from memory
is one billionth of a second
expansion slot
a socket on the motherboard that can hold adapter cards
adapter card
a circuit board that enhances functions of a component of the system unit and provides connections to peripherals
a device that connects to the system unit and is controlled by the processor in the computer
video card
converts computer output into a video signal that travels through a cable to the monitor
sound card
enhances the sound generating capabilities of a personal computer by allowing sound to be input through microphones and output through external speakers
a device that plugs in a firewire or usb port on the system unit and contains multiple firewire/ usb ports in which you plug cables from
graphic card
converts computer output into a video signal that travels through a cable to the monitor
memory card
a removable flash memory device that you insert and remove from a slot in a personal computer, console, mobile device and card reader/ writer
the point at which a peripheral attached to or communicates with a system unit so that the peripheral can send data from the computer
USB port
can connect up to 127 different peripherals together with a single connector
FireWire Port
can connect multiple types of devices that require faster data transmission speed
SCSI port
allows you to attach SCSI peripherals
port replicator
an external drive that provides connections to peripherals through ports built into the device
docking station
an external drive that attaches to a mobile computer, contains a power connection and provides connections to peripherals
each channel that allows the various devices both inside and attached to the system unit to communicate with each other
system bus (front bus)
part of the motherboard and connects the processor to main memory/ hard drive
backside bus
connects the processor to cache
expansion bus
allows the processor to communicate with peripherals
an opening inside the system unit in which you can install additional equipment
drive bay
a rectangular opening that typically holds disk drives
power supply
the component of the system unit that converts the wall outlet AC power into DC power