IC3 - Digital Literacy Hardware and Software Concepts Questions and Answers — 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?
- Random Access Memory (RAM)
- Central Processing Unit (CPU) (Correct answer)
- Hard Disk Drive (HDD)
- Operating System (OS)
Correct answer: Central Processing Unit (CPU)
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?
- Read-Only Memory (ROM)
- Solid-State Drive (SSD)
- Volatile Memory (Correct answer)
- Non-Volatile Memory
Correct answer: Volatile Memory
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?
- Microsoft Windows
- macOS
- A device driver
- A web browser (Correct answer)
Correct answer: A web browser
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?
- To provide a user interface and manage computer hardware and software resources. (Correct answer)
- To protect the computer from viruses and malware.
- To create and edit text documents and spreadsheets.
- To connect the computer to the internet.
Correct answer: To provide a user interface and manage computer hardware and software resources.
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?
- Upgrading the monitor to a higher resolution.
- Installing a larger hard disk drive.
- Adding more Random Access Memory (RAM). (Correct answer)
- Replacing the computer's mouse and keyboard.
Correct answer: Adding more Random Access Memory (RAM).
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.
Question 6: Which of the following best describes the relationship between hardware and software?
- Hardware and software are interchangeable terms for computer components.
- Software tells the hardware what to do and how to do it. (Correct answer)
- Hardware is installed on software to increase its capabilities.
- Software is the physical, tangible part of the computer, while hardware is the set of instructions.
Correct answer: Software tells the hardware what to do and how to do it.
Hardware refers to the physical components of a computer system that you can touch. Software is a set of instructions or programs that tells the hardware what tasks to perform. Without software, the hardware would not know what to do.
IC3 - Digital Literacy Hardware and Software Concepts Questions and Answers
Which of the following is responsible for executing instructions and performing calculations in a computer, often referred to as the 'brain' of the computer?