My ccc Course

In put  de vice 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)      

P ART OF COMPUTER 1.  CPU(CENTRAL PROCESSING UNIT)                                                                        2. INPUT DIVICE/PART/COMPONENTS 3. OUTPUT DIVICE 4. STORAGE DIVICE(CAPACITY) 5. HARDWARE/SOFTWARE                                               T ype of memory    1. P RIMARY  MEMORY 2. S ECANDARY MEMORY 1. PRIMARY MEMORY                                                                                       P...