IT &computer MCQ section 7 MCQ Questions & Answers Detailed Explanation

Answer: (b)

A grid is a network or a series or vertical and horizontal lines constructed perpendicular to each other. One series or lines runs from east to west and the other from north to south. Together they form squares of same dimensions within a given map. Each of the line forming the squares is given a value so that the position of an object on a map can be easily identified.

Answer: (b)

System management is designed to balance processing and input/output, with the aim of providing reasonable minimum turnaround and maximum throughput. Turnaround is the amount of time elapsing between a request to the computer to execute a program or input and the availability of output.

Answer: (a)

Random-access memory (RAM) is a form of computer data storage. A random-access device allows stored data to be accessed in very nearly the same amount of time for any storage location, so data can be accessed quickly in any random order. In contrast, other data storage media read and write data only in a predetermined order.

Answer: (a)

Universal Serial Bus (USB) is an industry standard developed in the mid-1990s that defines the cables, connectors and communications protocols used in a bus for connection, communication and power supply between computers and electronic devices. USB was designed to standardize the connection of computer peripherals to personal computers, both to communicate and to supply electric power.