Figure. Printing mechanism of dot matrix printer.

All about Printer

November 5, 2018 studyin24 0

Printers A printer is an output device makes a hardcopy from a softcopy. Parameters or Criteria to Evaluate a Printers A printer can be evaluated […]

Fig: Block diagram of reading mechanism of an OMR machine.

About Input Device

November 5, 2018 studyin24 0

Question: What is peripheral device? Answer: The input-output devices are called peripheral devices. So, a keyboard is peripheral device. A monitor is also a peripheral […]

Classification of Computer Memory

November 3, 2018 studyin24 0

Classification of Computer Memory Computer memories can be classified according to the following criteria: Classification-1: According to Distance from a CPU: Computer Memory i/  Internal […]

Classification of Computers

October 18, 2018 studyin24 0

Computers are classified according to the following criteria: Criteria-I: According to the purpose it is used (i) Special Purpose Computers:   Special purpose computers are […]