सीधे मुख्य सामग्री पर जाएं
Input device
- key board (permanent)
- mouse (optional)
- scanner (1.desktop scanner 2.roller fed scanner 3.hand held scanner)
- joy stick
- OCR(optical character reader)
- OMR(optical mark reader)
- MICR(meganatic ink character reader)
- BCR (bar code reader)
- camera
- light pen
- speech synthesizes
- QR(quick reader)
- track ball (used in mouse to move )
Output device
- Monitor-it s a output device which give us result(it is not used now a day)
- CRT (cathode roy tube)
- TFT (thin film transistor)
- LCD (liqvid crtstal diod)
- HED (high emitting diod)
- O-LED (organic light emittng diod)
टिप्पणियाँ
एक टिप्पणी भेजें