Specialized Flashcards
What are the 4 components of COMPUTER HARDWARE?
•input devices
•Central processing unit (cpu)
•Output devices
•Memory
Is the basic unit of information in computer
-Bit (binary digit)
What are the 4 “terms” that describe large unit of data used in measuring data storage
Kilobyte,megabyte,gigabyte,and terabyte
It is the data or instructions entered into memory of computer and any hardware component that allows users to enter data and instructions
INPUT DEVICES
Two type of input
-Data
-Instructions
Allows the computer to enter words,numbers,punctuation,symbol etc.,
KEYBOARD
Controls movement of pointer, also called mouse pointer
POINTING DEVICES
Pointing devices that fits under palm hand
MOUSE
No moving mechanical parts inside,senses light to detect mouse movement
OPTICAL MOUSE
Stationary pointing device with a ball on its top or side,to move pointer,rotate ball with thumb,finger,or palm of hand
TRACKBALL
Is small,flat,rectangular pointing devices sensitive to pressure and motion
Touchpad
Is pointing device shaped like pencil eraser positioned between keys on keyboard
Pointing stick
Is vertical lever mounted on a base
Joystick
Is steering-wheel-type input device
Wheel
It is to touch areas of screen with finger,often used with kiosks
Touch screen