4.7.1 Internal Hardware Components of A Computer Flash Cards

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Internal hardware components of a computer

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Processor, main memory, address bus, data bus, control bus, I/O controllers

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Role of a bus in a computer system

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Facilitates communication between components; includes address, data, and control buses.

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Difference between von Neumann and Harvard architectures

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Understand and describe where each is typically used.

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Concept of addressable memory

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Understanding how memory locations are accessed and utilised

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The processor

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A computer's processor executes programme instructions to run applications.

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Main memory

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Main memory includes RAM and ROM, storing programme instructions and frequently used data for quick execution.

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Buses

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Buses are parallel wires connecting internal components, allowing signal transmission. Key types include address, data, and control buses.

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Address bus

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The address bus transports memory addresses, increasing the range of addressable memory by adding wires.

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Number of parallel wires in the address bus

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1 wire = 2 addressable locations, 2 wires = 4, 3 wires = 8.

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Types of secondary storage

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Secondary storage devices include hard disk drives, solid-state drives, and optical discs.