Computer Science MCQs

Questions and Answers

What is the main function of the CPU in a computer?

Perform calculations and logic operations (correct)

Store data permanently

Control external devices

Manage network connections

Which type of memory is volatile and loses its contents when power is turned off?

Magnetic Disk Storage

Random Access Memory (RAM) (correct)

Read-Only Memory (ROM)

Flash Memory

What is an Operating System primarily responsible for?

Providing a user interface exclusively

Managing hardware and software resources (correct)

Running applications separately

Storing all user data securely

Which of the following is NOT a programming language?

<p>HTML</p> Signup and view all the answers

What does 'bandwidth' refer to in networking?

<p>The maximum data transfer rate of a network</p> Signup and view all the answers

Study Notes

Central Processing Unit (CPU)

The CPU is the primary component responsible for executing instructions in a computer.
It performs calculations, runs programs, and coordinates activities of other hardware components.
Often referred to as the "brain" of the computer due to its crucial role in processing data.

Types of Memory

Volatile memory loses all stored data when power is turned off; examples include RAM (Random Access Memory).
Non-volatile memory retains information after power is lost, such as ROM (Read-Only Memory) and solid-state drives (SSDs).

Operating System (OS)

An OS serves as the intermediary between hardware and user applications.
It manages system resources, including CPU, memory, and storage.
Provides services like file management, task scheduling, and device control.

Programming Languages

A programming language is a formal set of instructions used to produce various types of outputs.
Examples include Python, Java, and C++.
Items not classified as programming languages would vary; common examples might be HTML or CSS.

Bandwidth in Networking

Bandwidth refers to the maximum rate of data transfer across a network connection.
It is measured in bits per second (bps), affecting how quickly data can be sent or received.
A higher bandwidth allows for faster internet speeds and improved performance for applications requiring substantial data transfer.

Description

Test your knowledge of computer science concepts with this quiz focused on key functions of the CPU, types of memory, operating systems, programming languages, and networking. Answer multiple-choice questions to evaluate your understanding of these fundamental topics.