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Unit 3: H,S, & OS

Hardware, Software, & Operating Systems Vocabulary

TermDefinition
computer an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data
hardware part of your computer that has a physical structure, such as the keyboard or mouse
software set of instructions that tells the hardware what to do and how to do it
Desktop Computers designed to be placed on a desk, and they're typically made up of a few different parts, including the computer case, monitor, keyboard, and mouse
Laptop battery-powered computers that are more portable than desktops, allowing you to use them almost anywhere
tablet handheld computers that use a touch-sensitive screen for typing and navigation
server a computer that serves up information to other computers on a network
optical mouse uses an electronic eye to detect movement and is easier to clean
computer case the metal and plastic box that contains the main components of the computer, including the motherboard, central processing unit (CPU), and power supply
monitor works with a video card, located inside the computer case, to display images and text on the screen
LCD liquid crystal display
LED light-emitting diode
CRT cathode ray tube
keyboard primary way to communicate with a computer
mouse a pointing device that lets you point to objects on the screen, click on them, and move them
mechanical mouse uses a rolling ball to detect movement and requires regular cleaning to work properly
touchpad a touch-sensitive pad that lets you control the pointer by making a drawing motion with your finger
printer used to print documents, photos, and anything else that appears on your screen
scanner allows you to copy a physical image or document and save it to your computer as a digital (computer-readable) image
speakers output devices that allow the user to hear sound and music
microphone a type of input device, or a device that receives information from a user
webcam a type of input device that can record videos and take pictures
motherboard the computer's main circuit board; a thin plate that holds the CPU, memory, connectors for the hard drive and optical drives, expansion cards to control the video and audio, and connections to your computer's ports (such as USB ports)
central processing unit the brain of the computer; the processor
megahertz measure's a processor's speed
RAM random access memory; short-term
megabytes measures short-term memory
hard drive stores software, documents, and other files; long-term storage
power supply unit converts the power from the wall outlet to the type of power needed by the computer
network card allows your computer to communicate over a network and access the Internet
Created by: kristijoyner