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 or permanent software that is not expected to change frequently. RAM (Random-Access Memory) stores data and code that are actively being used or processed by the CPU.
Step 3
State the two items proposed to store in main memory.
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Answer
John von Neumann proposed to store both data and instructions in main memory.
Step 4
Identify the part of the CPU that sends signals to the other components.
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Answer
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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Answer
The operating system manages scheduling by holding all processes in a queue, prioritizing them based on their importance or urgency, and switching between processes on each clock cycle to effectively allocate processor time.
Step 6
Identify the function of utility software.
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Answer
The function of utility software is A) Repairing secondary storage.
