21.
The computer program language which is widely used in computer science and engineering and also in business is

22.
A 'number crunching' computer is one that can handle

23.
The barcode which is used on all types of items, is read by a scanning device directly into the computer. What is the name of this scanning device?

24.
A processing unit that coordinates networks and data communication is known as

25.
A type of line printer that uses an embossed steel band to form the letters printed on the paper is