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Processor components
- (a) describe the function and purpose of the control unit, memory unit and arithmetic logic unit (ALU) as individual parts of a processor
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Primary and secondary storage
- (b) explain the difference between types of primary memory and their uses (RAM, ROM)
- (c) describe the basic features, advantages, disadvantages and use of secondary storage media
- e.g. magnetic, optical and solid state
- (d) describe use of buffers and interrupts in the transfer of data between peripheral devices and primary memory
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Peripheral devices
- (e) describe a range of common peripheral devices in terms of their features, benefits, drawbacks and
uses
- (f) relate the choice of peripheral device to a given application, justifying the choices made
- (g) understand the potential problem of speed mismatch between peripheral and processor
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