Evaluate:

 Which of the following extension is not audio extension ?

OCR stands for __________

The 'dot matrix and 'solid font printers are examples of

Which of the following number system computer use to store data and perform calculations. 

Which of the following is erased by exposing it to UV light?

Which among the following statements is incorrect?

ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for?

In an operating system, which mode allows unrestricted access to hardware resources and is used by the kernel?

Linux is a type of …… software. 

Which among the following is a device, that is used in computers to add external components?