• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/48

Click to flip

48 Cards in this Set

  • Front
  • Back
System unit
case that contains electronic components of the computer to process data
motherboard
aka system board, main circuit board of the system unit.
chip
small piece of smeiconducting material, usually silicon, on which integrated circuits are etched.
CPU
central processing unit, interprets and carries out the basic instructions that operate a computer.
multi-core porcessor
`chip with two or more separate processor cores.
control unit
component of the processor that directs and coordinates most of the operations in a computer.
ALU
arithmetic logic unit, another component of the processor, performs arithmetic, comparison and other operations
system clock
small quartz crystal circuit that controls the timing of all computer operations.
clock speed
pace of a system clock measured by the number of ticks per second.
binary system
number system that just has two unique digits, 0 and 1, called bits.
bit
short for binary digit, the smallest unit of data the computer can process
byte
8 bits grouped as a unit that provides enough different combinations of 0s and 1s to represent 256 individual characters
memory
consist 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 (info)
volatile memory
loses its contents when the computers power is turned off.
nonvolatile memory
does not lose its content when the computers power is turned off.
RAM memory
(random access memory) aka main memory consists of memory chips that can be read from and written to by the processor and other devices.
ROM memory
(read only memory) memory chips storing permanet data and instructions.
memory module
small circuit board.
memory slot
holds memory modules on the motherboard.
cache
helps speed the processes of the computer because it stores frequently used data and instructions.
L1 cache
built directly in the processor chip, usually has very small capacity ranging from 8kb- 128kb
L2 cache
slightly slower but much larger capacity. 64 kb- 16 mb
Flash memory
type of nonvolatile memory that can be erased electronically and rewritten
CMOS
(complementary metal-oxide semiconductor) provides high speeds and consumes little power.
access time
amount of time it takes the processor to read data, instructions, info, and memory.
nanosecond
`one billionth of a second.
expansion slot
socket on the motherboard that can hold an adapter card.
adapter card
AKA expansion card, circuit board that enhances functions of a component of the system unit and/or provides connects to peripherals.
peripheral
device that connects to the system unit and is controlled by the processor in the computer
video card
(graphics card) converts computer output into a video signal that travels through a cable to the monitor, which displays an image on the screen
sound card
enhances the sound-generating capabilities of a personal computer by allowing sound to be input through a microphone and output through speakers or headphones.
hub
device that plugs into a USB port on the system unit and contains multiple USB ports in which you plug number cables from USB devices.
graphics card
another name for video card
memory card
removable flash memory device usually no bigger than 1.5 inches in height or width that you insert and remove from a slot.
port
the point at which a peripheral attaches to or communicates with a system unit so that the peripheral can send data to or recieve info from the computer.
USB port
(universal serial bus 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 speeds to a single connector.
SCSI port
allows you to attach SCSI peripherals such as disk drives and printers.
port replicator
external device that provides connections to peripherals through ports built into the device.
docking station
an external device that attaches to a mobile computer or device, contains a power connection and provides connections to peripherals.
bus
allows the various devices both inside and attached to the system unit to communicate with each other.
system bus
(front side bus) is part of the motherboard and connects the processor to main memory
frontside bus
another name for system bus
backside bus
connects the processor to cache
expansion bus
allows the processor to communicate with peripherals.
bay
opening inside the system unit in which you can install tradtional equipment.
drive bay
rectangular opening that typically holds disk drives.
power supply
component of the system unit that converts the wall outlet AC power to DC power.