Computer Basics Part 2
Terms in this set (43)
The most important software that runs on a computer. Manages the computer's memory, processes as well as all of its software and hardware.
boot your computer
This is the process that occurs when you press the power button to turn your computer on. It includes: running tests to make sure everything is working correctly, checking for new hardware and finally starting up the operating system.
Three most common operating systems for personal computers are
Microsoft Windows, Mac OSX, and Linux.
Graphical User Interface, or GUI (pronounced "gooey")
What you interact with when you use your computer. You can use your mouse to click on icons, buttons, and menus. Everything is clearly displayed on the screen using a combination of graphics and text.
command-line interface or DOS
Old operating system/technology before GUI. User had to type every single command.
The basic parts of a desktop computer
includes computer case, monitor, keyboard, mouse, and power cord.
A metal and/or plastic box that contains the main components of the computer.
Main components of computer
Motherboard, central processing unit (CPU), power supply along with other hardware components and peripheral devices.
It's located inside the computer case and works with the monitor to display images and text on the screen.
LCD (liquid crystal display) or LED(light-emitting diode)
Types of monitor displays.
This is the link between the power outlet and the power supply unit in the computer case.
These are used to protect your computer from voltage spikes and power surges.
Peripheral device used to enter text. Used to enter data.
A pointing device that allows you point to objects on the screen, click on them, and move them.
buttons, sockets, and slots
These vary from computer to computer but are used to power up or connect peripherals.
Examples include a mouse, printer, monitor, digital camera, scanner and keyboard.
These are located on the front and back of a computer. The connections for specific devices.
Common computer set up
Computer case, monitor, keyboard and mouse.
Be able to identify ports, slots and buttons on front and back of computer
central processing unit (CPU)
Also called a processor or brain of the computer. Located inside the computer case attached to the motherboard; Main job is to carry out commands.
Whenever you press a key, click the mouse, or start an application
When you type, click on mouse, etc., you're sending instructions to the CPU or brain of computer.
Located inside CPU; size of a thumbnail.
An object that absorbs heat from the CPU and sits above CPU
This speed is measured in megahertz (MHz), or millions of instructions per second, and gigahertz (GHz), or billions of instructions per second
A faster processor
executes instructions more quickly.
the actual speed of the computer
depends on the speed of many different components.
This is the computer's main circuit board. It 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).
Connects directly or indirectly to every part of the computer.
power supply unit
Power from the wall is convertedoutlet to the type of power needed by the computer; sends power through the cables to the motherboard and other components.
System's short-term memory; Disappears when computer goes off.
short-term memory or RAM
Disappears when the computer is turned off.
Long-term storage; Files and programs are saved her permanently.
The more RAM you have
The more things your computer can do at the same time.
Smallest unit of data in computer processing.
Group of eight bits.
Contains about one million bytes.
Contains about one billion bytes.
faster the hard drive is
The faster your computer can start up and load programs.
Small, removable flash drive that plugs into a USB port.
These are found on the motherboard. You can add these allow you to add various types of expansion cards. Can be used to boost performance of graphics, sound, etc.
The card is responsible for what you see on the monitor.
This card is responsible for what you hear in the speakers or headphones.
This card allows your computer to communicate over a network and access the Internet..