1. Define the term hardware - AQA - GCSE Computer Science - Question 8 - 2023 - Paper 2
Question 8
1. Define the term hardware.
Hardware refers to the physical, electrical, and electronic components or parts of a computer system.
2. Describe the role of each of ... show full transcript
Worked Solution & Example Answer:1. Define the term hardware - AQA - GCSE Computer Science - Question 8 - 2023 - Paper 2
Step 1
Define the term hardware.
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Answer
Hardware refers to the physical, electrical, and electronic components or parts of a computer system.
Step 2
Describe the role of each of the following components of a CPU:
Clock
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Regulates the timing and speed of computer operations; it sends out a regular electronic pulse, acting as a timing signal.
Step 3
Describe the role of each of the following components of a CPU:
Control unit
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Coordinates the actions of the CPU, decodes instructions, and sends control signals to manage the flow of data through the CPU.
Step 4
Describe the role of each of the following components of a CPU:
Register
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Holds data when executing an instruction and stores the results of operations. It includes the Current Instruction Register (CIR) and the Memory Address Register (MAR).
Step 5
Give one reason why a CPU with two cores might perform faster than an equivalent CPU with only one core.
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A CPU with two cores may be able to process two instructions or tasks simultaneously, allowing for more efficient execution of programs.
Step 6
Define the term non-volatile memory.
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Non-volatile memory retains data even when power is lost, ensuring information remains stored without the need for continuous power supply.
Step 7
Give one example of a type of volatile memory in a computer system.
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A common example of volatile memory is RAM (Random Access Memory).
Step 8
Explain why secondary storage is required in a computer system.
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Secondary storage is crucial for storing data and files on a long-term basis. Unlike primary storage, which is temporary and loses data when the power is off, secondary storage holds data persistently. It also allows for larger storage capacity, enabling the storage of extensive files and programs, as well as supporting virtual memory usage for efficient task management.
