Programming | MCQs

Explanation

"Programs" are the step-by-step instructions that run the computer.

Programs is also known as software.

It guide the computer in performing specific tasks and operations.

Explanation

In the statement scanf("%d", &kilometer);, kilometer is considered a variable because:

• Declaration:

Before this statement, kilometer must have been declared as a variable

• Address of Operator:

The & operator in &kilometer is the address-of operator.

It provides the memory address of the variable kilometer to the scanf function.

• Variable Usage:

Variables are used to store data that can be modified during program execution.

Explanation

The function clrscr() is defined in the conio.h header file, which stands for "console input/output".

This header file is used in DOS-based systems and some compilers like Turbo C/C++.

It provides functions to perform console input and output operations.

Explanation

A nested loop has one loop inside of another.

These are typically used for working with two dimensions such as printing stars in rows and columns as shown below.

When a loop is nested inside another loop, the inner loop runs many times inside the outer loop.

Explanation

Null pointers can be used for various purposes in programming, including as an error value, a sentinel value, and to stop indirection in a recursive data structure.

Explanation

C language is a high-level language.

Explanation

A compiler is a translator program that converts a high-level language source program into a machine language object program.

کمپائلر ایک مترجم پروگرام ہے جو ایک اعلی سطحی زبان کے سورس پروگرام کو مشین لینگویج آبجیکٹ پروگرام میں تبدیل کرتا ہے۔

Explanation

In computing, an opcode (abbreviated from operation code, also known as instruction machine code, instruction code, or instruction syllable.

An operand is part of an instruction representing the data manipulated by the operator.

ND11-4-2023

Explanation

FORTRAN, in full Formula Translation, computer programming language created in 1957 by John Backus that shortened the process of programming and made computer programming more accessible.

Explanation

ASCII is a coding system which provides 128 different characters.

ASCII stand for American Standard Code for Information Interchange.

ASCII is the code that is currently used worldwide in computing.