Hardware Flashcards
Hardware
Physical parts of the computer (Mouse, keyboard, printer, CPU)
Micro processor or CPU (central processing unit)
Brains of the computer, processing happens here
Hertz
Megahertz
Gigahertz
Measure speed of computer components
1million cycles per second
1 billion cycles per second
ROM
read only memory- a chip on the motherboard that hold specific instructions for the computers operation -permanent, cannot be changed
RAM
Random Access Memory -A computers temporary memory
Hard disk
A rigid, magnetic storage device kept inside the computer told programs and data
Modem
Connect the computer to phone line
Peripheral devices
Devices connect by cable to the computer (keyboard, printer, camera, etc.)
Input devices
Any device used to input data into the computer
Examples: keyboard, mouse, scanner, microphone
Output device
Any device used to receive output from the computer
Examples: monitor, printer, speakers, projector
Pixel
The basic unit of an image
Resolution
Amount of pickles on the screen- the more pixels, the better resolution
Storage device
CD/DVD
Hard disk
Flash drive
External hard drive
A device used to record and store data when the computer is turned off (all disks and Drives storage devices)
- A storage device that uses optical laser technology to record data
- A rigid magnetic storage device kept inside your computer
- A small, portable device used for storing data. Usually plugs into a USB port
- A hard drive that is stored inside of the computer and it’s own case