Programming Language | MCQs

Explanation

COBOL stands for Common Business-Oriented Language

It is a programming language specifically designed for business, finance, and administrative systems.

It was designed in 1959 by CODASYL

And was partly based on the programming language FLOW-MATIC

Designed by Grace Hopper

Stable release: ISO/IEC 1989:2023 / 2023

Explanation

Vacuum tubes as the basic components for memory and circuitry for CPU .

These tubes, like electric bulbs, produced a lot of heat and the installations used to fuse frequently.

First generation (1940 - 1956) vacuum tubes as a major piece of technology. 

The ENIAC is  example of 1st generation computer.

Second generation (1956 - 1963) use of transistors.

Third generation (1964 - 1971)  use of Integrated circuits.

Fourth generation (1972 - 2010) use of the microprocessor.

Fifth generation (2010 to present) use Artificial intelligence.

Explanation

In both C and C++ programming languages, the symbol used to access the value stored at a memory address (dereferencing a pointer) is the asterisk (*).

* and & are the operators used in pointers.

* gives us the value stored at a particular address

whereas “ & “ gives us the address of the variable

Explanation

Binary is a system by which numbers, letters and other information are represented using only two symbols, or binary digits

Explanation

Machine language, or machine code, is a low-level language comprised of binary digits (1 and 2).

Since computers are digital devices, they only recognize binary data.

Explanation

A computer program is written using a set of codes (instructions) that the computer can understand.

These codes are composed of programming languages made up of symbols, words, and syntax, but collectively called codes.

Explanation

Semantic refers to the meaning of a statement in a programming language.

Syntax refers to the structure or rules of writing code.

The compiler translates code into machine language.

Explanation

In computer systems, especially Windows, a drive is represented by a letter followed by a colon, like C:, D:.

This notation is used to identify different storage locations or partitions.

Explanation

Assembly language is a low-level language that uses mnemonics to represent machine-level instructions.

It is hardware-specific and closer to binary code, offering more control over hardware.

Explanation

Business refers to organizational/commercial activities, not a programming structure.

Common Programming Concepts:

Condition: Used for decision-making (e.g., if-else statements).

Sequence: The order in which instructions are executed.

Loop: Repeats a block of code (e.g., for, while loops).