Q41. What is the primary purpose of an operating system?
a) To provide internet connectivity
b) To manage hardware and software resources
c) To create graphics
d) To edit text documents
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Correct Answer: b) To manage hardware and software resources
Explanation: The operating system (OS) is the software that manages all hardware and software resources on a computer. It controls the execution of programs, manages memory and storage, handles input and output operations, and provides a user interface for interaction with the system.
Q42. Which of the following is a primary function of a network interface card (NIC)?
a) To store data
b) To provide audio output
c) To connect a computer to a network
d) To manage power supply
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Correct Answer: c) To connect a computer to a network
Explanation: A Network Interface Card (NIC) is a hardware component that allows a computer to connect to a network. It can provide both wired (Ethernet) and wireless (Wi-Fi) connectivity, enabling the computer to communicate with other devices and access network resources like the internet.
Q43. What does the acronym SSD stand for in computing?
a) Solid-State Drive
b) Super Speed Disk
c) Single Storage Device
d) Secure Storage Data
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Correct Answer: a) Solid-State Drive
Explanation: SSD stands for Solid-State Drive, a type of storage device that uses flash memory to store data. Unlike traditional hard disk drives (HDDs), SSDs have no moving parts, which makes them faster, more durable, and more energy-efficient.
Q44. Which component is responsible for interpreting and executing instructions in a computer system?
a) RAM
b) CPU
c) GPU
d) Hard drive
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Correct Answer: b) CPU
Explanation: The CPU (Central Processing Unit) is the main component responsible for interpreting and executing instructions in a computer system. It performs the necessary calculations and processes required to run software applications and manage system operations.
Q45. What is the role of the Control Unit (CU) within the CPU?
a) Performing arithmetic operations
b) Storing data temporarily
c) Directing the operations of the processor
d) Rendering graphics
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Correct Answer: c) Directing the operations of the processor
Explanation: The Control Unit (CU) within the CPU directs the operations of the processor by controlling the flow of data and instructions within the CPU. It coordinates the activities of the CPU’s other components, such as the Arithmetic Logic Unit (ALU) and registers, to ensure that instructions are executed correctly.
Q46. Which of the following devices is primarily used to output hard copies of documents?
a) Monitor
b) Printer
c) Speaker
d) Mouse
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Correct Answer: b) Printer
Explanation: A printer is an output device used to produce physical copies of digital documents, images, or other content. It converts electronic data into printed form, which can be on paper, labels, or other printable materials, depending on the type of printer.
Q47. What does the term ‘bit’ stand for in computing?
a) Binary Digit
b) Basic Input Terminal
c) Byte Integer
d) Backup Information Tool
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Correct Answer: a) Binary Digit
Explanation: A ‘bit’ stands for ‘Binary Digit,’ which is the smallest unit of data in a computer. It can have a value of either 0 or 1 and is the basic building block for all digital data and communication. Multiple bits are combined to form more complex data structures, such as bytes, kilobytes, and beyond.
Q48. Which of the following is an example of non-volatile memory?
a) RAM
b) Cache memory
c) Hard disk drive (HDD)
d) Register
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Correct Answer: c) Hard disk drive (HDD)
Explanation: Non-volatile memory, such as a hard disk drive (HDD), retains data even when the computer is turned off. It is used for long-term storage of data, files, and applications. Unlike volatile memory like RAM, non-volatile memory ensures that data is preserved over time.
Q49. What does a router do in a computer network?
a) Stores data for quick access
b) Directs data packets between computers on different networks
c) Displays data to the user
d) Powers the computer system
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Correct Answer: b) Directs data packets between computers on different networks
Explanation: A router is a networking device that directs data packets between computers on different networks. It routes traffic between devices in a local network and manages communication with external networks, such as the internet, ensuring that data reaches its correct destination.
Q50. What is the main advantage of using an SSD over an HDD?
a) Lower cost
b) Faster data access speeds
c) Larger storage capacity
d) Compatibility with all software
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Correct Answer: b) Faster data access speeds
Explanation: The main advantage of using an SSD (Solid-State Drive) over an HDD (Hard Disk Drive) is the significantly faster data access speeds. SSDs use flash memory to store data, which allows for quicker read/write times and faster boot and load times for applications compared to HDDs, which rely on spinning disks.