IT &computer MCQ section 6 MCQ Questions & Answers Detailed Explanation

Answer: (b)

American Standard Code for Information Interchange (ASCII) is the predominant character set encoding of present-day computers.

ASCII codes represent text in computers, telecommunications equipment, and other devices.

Most modern character encoding schemes are based on ASCII, although they support many additional characters.

Answer: (a)

A dot matrix printer is a printer that uses dots to print letters and even pictures. They can only print one colour.

The advantages of using them are:

• low purchase cost,
• can handle multipart forms,
• cheap to operate,
• just new ribbons,
• rugged and low repair cost and
• the paper is completely connected.

This allows printing long banners that span across several sheets of paper.

Answer: (b)

API : Application Programming Interface

Answer: (b)

PROM (Programmable Read-Only Memory) is a memory chip on which data can be written only once. Once it is programmed, data is permanent and it cannot be erased.

The information is stored permanently in the memory cell. We can only read that data but cannot write data on it.

Answer: (a)

A green data center is a repository for the storage, management and dissemination of mechanical lighting, electrical and computer systems developed to optimiza energy efficiency and environment impact.

Answer: (c)

A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd, of IBM’s San Jose Research Laboratory.