Programming | MCQs

Explanation

HTML (Hypertext Markup Language) is the standard markup language used to create web pages and display content on the internet.

It is the most widely used language on the web.

It is the backbone of a website's structure and content.

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

The language that the computer can understand and execute is called machine language.

It consists of binary code directly understood by the computer's hardware.

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 variable is a named memory location whose value can change during the execution of a program.

In contrast, a constant has a fixed value that does not change while the program runs.

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.