Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|