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49 Cards in this Set

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