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47 Cards in this Set

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