IC3 - Digital Literacy Hardware and Software Concepts Questions and Answers

Question 1

Which of the following is responsible for executing instructions and performing calculations in a computer, often referred to as the 'brain' of the computer?

Accepted Answer

Central Processing Unit (CPU)

Answer

The Central Processing Unit (CPU) is the primary component of a computer that processes instructions. It runs the operating system and applications, constantly receiving input from the user or active software programs. It processes the data and produces output, which may be stored or displayed on the screen.

Question 2

A user is working on a presentation and suddenly the power goes out. When they restart the computer, they find that all their unsaved work is lost. Which type of memory was storing the unsaved work?

Accepted Answer

Volatile Memory

Answer

Volatile memory, such as Random Access Memory (RAM), requires power to maintain the stored information. When the power is turned off, the contents of RAM are lost. This is why it's crucial to save work frequently to a non-volatile storage device like an HDD or SSD.

Question 3

Which of the following is an example of application software?

Accepted Answer

A web browser

Answer

A web browser is a type of application software designed to perform a specific task for the user, in this case, accessing and viewing websites. Microsoft Windows and macOS are operating systems (system software), and a device driver is a specialized software that allows the operating system to communicate with a hardware device.

Question 4

What is the primary function of an operating system?

Accepted Answer

To provide a user interface and manage computer hardware and software resources.

Answer

The operating system (OS) is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language.

Question 5

A user complains that their computer is running very slowly, especially when they have multiple programs open. They have an older computer with limited RAM. Which of the following hardware upgrades would MOST likely resolve this performance issue?

Accepted Answer

Adding more Random Access Memory (RAM).

Answer

RAM (Random Access Memory) is used by the computer to hold data for currently running programs. When there isn't enough RAM to hold all the open programs, the operating system has to swap data to the much slower hard drive, which significantly degrades performance. Increasing the amount of RAM allows the computer to handle more programs simultaneously without this slowdown.

IC3 - Digital Literacy Certification Practice Test

IC3 - Digital Literacy Certification Practice Test

IC3 - Digital Literacy Hardware and Software Concepts Questions and Answers