A company is developing a computer for use in schools - Edexcel - GCSE Computer Science - Question 4 - 2018 - Paper 1
Question 4
A company is developing a computer for use in schools.
All computers have a CPU, memory and storage.
(i) Identify the type of physical storage that uses electronic... show full transcript
Worked Solution & Example Answer:A company is developing a computer for use in schools - Edexcel - GCSE Computer Science - Question 4 - 2018 - Paper 1
Step 1
Identify the type of physical storage that uses electronic circuits.
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Answer
The type of physical storage that uses electronic circuits is A. Solid state.
Step 2
State what ROM and RAM store.
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Answer
ROM (Read-Only Memory) stores firmware, which includes the bootloader and system instructions necessary for the computer's hardware to initialize and function. RAM (Random Access Memory) stores data and instructions that the CPU needs while performing tasks, allowing for quick access and processing.
Step 3
State the two items he proposed to store in main memory.
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Answer
The two items proposed by John von Neumann to store in main memory are instructions and data.
Step 4
Identify the part of the CPU that sends signals to the other components.
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The part of the CPU that sends signals to the other components is B. Control unit.
Step 5
Describe how the operating system uses scheduling to allocate processor time.
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The operating system uses scheduling to allocate processor time by managing a queue of processes. It prioritizes processes based on criteria such as urgency or resource needs, ensuring that each process gets a fair amount of CPU time. Processes are switched in and out on each clock cycle, allowing for efficient multitasking.
Step 6
Identify the function of utility software.
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Answer
The function of utility software is A. Repairing secondary storage.
