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

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: (d)

Concatenation is the process of appending one string to the end of another string. When we concatenate string literals or string constants by using the + operator, the compiler creates a single string. No run time concatenation occurs.

However, string variables can be concatenated only at run time.

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: (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.

Answer: (b)

Logical operators are mainly used to control program flow. And, Or, AndAlso, OrElse, and Xor are binary operators.

Answer: (a)

The Control Unit, considered as the “Central nervous System” of a computer, obtains the instructions from the memory, interprets them and directs the operation of the computer.

It selects, interprets and monitors the execution of the program instructions by generating the timing and control signals.