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Deloitte Computer Science Quiz 1

Question 1

Time: 00:00:00

What is the main function of the Central Processing Unit (CPU) in a computer system?

Storage of data

Execution of instructions

Display of output

Input of data

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Explanation:
The CPU is responsible for executing instructions, performing calculations, and controlling the operations of the computer system.

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Question 2

Time: 00:00:00

Which component of a computer is responsible for storing data and program instructions that can be quickly accessed by the CPU?

Hard disk drive

Random Access Memory (RAM)

Central Processing Unit (CPU)

Read-Only Memory (ROM)

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Explanation:
RAM is a volatile memory that allows the CPU to read and write data quickly, providing temporary storage for program instructions and data.

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Question 3

Time: 00:00:00

Which of the following is a non-volatile storage device that stores data even when the computer is turned off?

RAM

CPU

Hard disk drive

Cache memory

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Explanation:
Hard disk drives are non-volatile storage devices used for long-term data storage in a computer system.

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Question 4

Time: 00:00:00

Which of the following is not an example of an input device?

Keyboard

Monitor

Mouse

Microphone

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Explanation:
A monitor is an output device that displays information to the user, whereas keyboards, mice, and microphones are all input devices.

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Question 5

Time: 00:00:00

What is the primary function of an Arithmetic Logic Unit (ALU) within the CPU?

Control memory operations

Perform logical operations

Execute input/output operations

Perform arithmetic operations

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Explanation:
The ALU performs arithmetic and logical operations, such as addition, subtraction, and comparison, as instructed by the CPU.

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Question 6

Time: 00:00:00

Which type of memory is directly accessible by the CPU for storing and retrieving data quickly?

Secondary memory

Cache memory

Hard disk drive

Optical disk

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Explanation:
Cache memory is a small, fast type of memory that is located within or close to the CPU, allowing for rapid access to frequently used data and instructions

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Question 7

Time: 00:00:00

Which of the following is an example of an output device?

Printer

Mouse

Scanner

Keyboard

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Explanation:
A printer is an output device that produces a physical copy of data, whereas a mouse, scanner, and keyboard are all input devices.

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Question 8

Time: 00:00:00

Which component of a computer system is responsible for controlling and coordinating the operations of the computer's hardware?

Memory

Hard disk drive

Operating system

Motherboard

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The operating system is a software component that manages the computer's hardware resources, including memory, storage, and input/output devices.

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Question 9

Time: 00:00:00

What is the purpose of the motherboard in a computer system?

Execution of instructions

Temporary storage of data

Providing communication between components

Displaying output to the user

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Explanation:
The motherboard serves as the main circuit board that connects and allows communication between various components of the computer, including the CPU, memory, and other peripherals.

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Question 10

Time: 00:00:00

Which of the following is a volatile type of memory that stores data temporarily and loses its contents when the computer is turned off?

Hard disk drive

Read-Only Memory (ROM)

Random Access Memory (RAM)

Flash memory

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Explanation:
RAM is a volatile memory used for temporary data storage, and it loses its contents when the computer is powered off.

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