IT &computer MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (a)

IC stands for Integrated Circuit. It is a set of electronic circuits on one small plate (“chip”) of semiconductor material, normally silicon. Also known as chip or microchip, ICs are the heart and brains of most circuits and are are a keystone of modern electronics.

Answer: (a)

Charles Babbage was considered to be the father of computing after his invention and concept of the Analytical Engine in 1837. Babbage is credited with inventing the first mechanical computer that eventually led to more complex designs. He was an English polymath.

Answer: (c)

A personal computer (PC) is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end-user with no intervening computer operator.

This contrasted with the batch processing or time-sharing models which allowed larger, more expensive minicomputer and mainframe systems to be used by many people.

Answer: (d)

Windows NT is designed for multi-processor systems. It supports symmetrical multiprocessing which enables multiple microprocessors to be productive at all times, increasing the overall system throughput and taking advantage of available processing power. Multiprocessing enables multiple tasks or applications to run in parallel on different microprocessors.

Personal workstations are designed to operate with more than one microprocessor in order to take advantage of the multiprocessing capabilities of Windows NT (The GIS Book by G.B. Corte)

Answer: (b)

The Double class wraps a value of the primitive type double in an object. An object of type Double contains a single field whose type is double.

In addition, this class provides several methods for converting a double to a String and a String to a double, as well as other constants and methods useful when dealing with a double.

Answer: (c)

The Control Panel is a part of the Microsoft Windows graphical user interface which allows users to view and manipulate basic system settings and controls via applets, such as adding hardware, adding and removing software, controlling user accounts and changing accessibility options.