A) To perform calculations
B) To provide permanent storage for data
C) To display output
D) To manage the computer’s processes
Correct Answer: B) To provide permanent storage for data
Explanation: A hard disk drive (HDD) provides permanent storage for data, including the operating system, applications, and user files, even when the computer is powered off.
A) General User Interface
B) Graphical User Interface
C) Global User Interface
D) Graphic Utility Interface
Correct Answer: B) Graphical User Interface
Explanation: GUI stands for Graphical User Interface. It allows users to interact with a computer using graphical elements such as windows, icons, and buttons, making it easier to use compared to text-based interfaces.
A) Cache Memory
B) ROM
C) RAM
D) Hard Drive
Correct Answer: D) Hard Drive
Explanation: The operating system and application software are typically stored on a hard drive, which provides large and permanent storage capacity compared to volatile memory like RAM and ROM.
A) ALU
B) CU
C) BIOS
D) Operating System
Correct Answer: D) Operating System
Explanation: The operating system manages communication between the computer’s hardware and software, facilitating the operation of hardware components and providing services for software applications.
A) To store the computer’s operating system
B) To regulate and provide power to components
C) To manage software and applications
D) To cool the internal components of the system
Correct Answer: B) To regulate and provide power to components
Explanation: The PSU converts electrical energy from the outlet into the correct voltage and current required to power the computer’s components. current.
A) SSD
B) CPU
C) RAM
D) Cache Memory
Correct Answer: A) SSD
Explanation: An SSD (Solid State Drive) is an example of secondary storage. It provides permanent storage for data, unlike RAM and cache memory, which are types of primary storage.
A) To display output
B) To store data
C) To provide data to the computer
D) To execute instructions
Correct Answer: C) To provide data to the computer
Explanation: The main function of an input device is to provide data and instructions to the computer. Examples include keyboards, mice, and scanners.
A) Microsoft Word
B) Google Chrome
C) Windows 11
D) Adobe Photoshop
Correct Answer: C) Windows 11
Explanation: Windows 11 is an example of an operating system, which manages hardware and software resources. Microsoft Word, Google Chrome, and Adobe Photoshop are application software.
A) WAN
B) LAN
C) MAN
D) PAN
Correct Answer: B) LAN
Explanation: A Local Area Network (LAN) is typically used to connect computers and devices within a single building or closely situated area, allowing for fast and efficient communication.
A) To manage system resources
B) To control peripheral devices
C) To perform mathematical and logical operations
D) To store and retrieve data
Correct Answer: C) To perform mathematical and logical operations
Explanation: The Arithmetic Logic Unit (ALU) is responsible for performing all arithmetic and logical operations within the CPU, such as addition, subtraction, and logical comparisons.
A) Uniform Resource Locator
B) Uniform Retrieval Locator
C) Universal Resource Locator
D) Universal Retrieval Link
Correct Answer: A) Uniform Resource Locator
Explanation: URL stands for Uniform Resource Locator. It is the address used to access resources on the internet, such as web pages and files.
A) To provide wireless connectivity
B) To manage and route data between different networks
C) To store large amounts of data
D) To display data on a screen
Correct Answer: B) To manage and route data between different networks
Explanation: A network router manages and routes data between different networks or subnets, directing traffic to ensure that data reaches its intended destination.
A) Microcomputer
B) Minicomputer
C) Mainframe
D) Supercomputer
Correct Answer: D) Supercomputer
Explanation: A supercomputer is known for its extremely high performance and is used for complex scientific calculations, simulations, and data analysis.
A) Using remote servers to store, manage, and process data
B) Operating a computer system in offline mode without storage
C) Designing software applications for personal computers only
D) Establishing direct connections between local devices
Correct Answer: A) Using remote servers to store, manage, and process data
Explanation: Cloud computing refers to delivering computing services like storage, processing, and software over the internet, eliminating the need for local infrastructure.
A) Perform calculations
B) Manage memory
C) Direct the operation of the processor
D) Store data permanently
Correct Answer: C) To fetch, decode, and execute instructions
Explanation: The Control Unit (CU) is responsible for fetching instructions from memory, decoding them, and executing them, thus controlling the operation of the CPU.
A) Application Software
B) System Software
C) Utility Software
D) Malware
Correct Answer: B) System Software
Explanation: System software is responsible for managing hardware and providing a user interface. The operating system is an example of system software.
A) A communication pathway for data
B) A type of input device
C) A storage medium
D) A programming language
Correct Answer: A) A communication pathway for data
Explanation: In computer architecture, a bus is a communication pathway used to transfer data between different components of the computer, such as the CPU, memory, and peripheral devices.
A) ROM
B) Optical Drive
C) Hard Drive
D) Cache Memory
Correct Answer: D) Cache Memory
Explanation: Cache memory is used to temporarily store data that the CPU is currently working on, providing faster access to frequently used information.
A) To store data and applications securely
B) To prevent unauthorized access to the network
C) To provide faster internet connectivity
D) To manage and organize network files
Correct Answer: B) To prevent unauthorized access to the network
Explanation: A firewall acts as a security barrier, monitoring and controlling incoming and outgoing network traffic based on predetermined security rules to protect against unauthorized access and cyber threats.
A) Converting data into a readable format
B) Storing data in a non-volatile medium
C) Encoding data to prevent unauthorized access
D) Transmitting data over a network
Correct Answer: C) Encoding data to prevent unauthorized access
Explanation: Data encryption refers to encoding data in such a way that only authorized parties can access it, providing security and privacy for sensitive information.
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