Internal Hardware of a Computer (AQA A-Level Computer Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is an embedded system?
What is an embedded system?
A chip built into a device to control it
What is the primary role of the CPU?
What is the primary role of the CPU?
Execute instructions to produce output
What happens to RAM contents when the computer is switched off?
What happens to RAM contents when the computer is switched off?
All contents are lost
Which statement is true about ROM?
Which statement is true about ROM?
It is non-volatile and read-only
In which direction does the data bus carry data?
In which direction does the data bus carry data?
Both directions (bi-directional)
In which direction does the address bus carry data?
In which direction does the address bus carry data?
From processor to memory only
How much memory can a 32-bit address bus address?
How much memory can a 32-bit address bus address?
4 GB
What is a key function of I/O controllers?
What is a key function of I/O controllers?
Translate signals & buffer data
What is the main difference between von Neumann and Harvard architecture?
What is the main difference between von Neumann and Harvard architecture?
Harvard uses separate buses for data/code
A processor with 3 GHz clock speed can process how many instructions per second?
A processor with 3 GHz clock speed can process how many instructions per second?
instructions