INPUT DEVICES Flashcards
Various types of input devices most commonly used are:
- Punch Cards
- Keyboard
- Mouse
- Light Pen
- Joystick
- Track ball
- Touch Screen
- Digitizer
- Scanner
- Voice Recognition Scanner
____ is recorded onto punch cards or punch tapes using standard codes, like the Hollerith code
Data
Data is recorded onto punch cards or punch tapes using ____, like the _____.
standard codes, Hollerith code
A ____ is used to transcribe the data onto the
card.
Punch card machine
Characteristic of punch card
They are cheaper and reliable.
One of the most commonly used input devices. And it has keys made up of letters, numbers, symbols, and special function keys
Keyboard
Computer keyboard is similar to
Typewriter keyboard
It is used to display the data entered by the operator with the keyboard
A display screen or monitor (Cathode Ray Tube)
A special symbol, called a
___, indicates the position on the screen.
Cursor
Used to enter alphabets
A-Z
Used to enter numbers
0-9
To Move the cursor in the specified
direction
Up, Down, Left, Right (Arrow Keyes)
Special Function Keys
F1-F12
To move the cursor up or down by one-page enter:
PgUp/PgDn
A Special key To Select the other option shown normal character on the same key
Shift (shift na tayo)
Activates the keypad on the right side of the keyboard. In the normal mode, this numeric pad works as per the function written below the number on
the key
Num Lock
Advantages of Keyboard
• It is very easy to use a keyboard
• It offers several facilities
• Editing or changing the input data is very easy with the help of the keyboard
• It is relatively Inexpensive