Part 2 Q6 to Q10 of National 5 Prelim

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Presentation transcript:

Part 2 Q6 to Q10 of National 5 Prelim Revision Part 2 Q6 to Q10 of National 5 Prelim

Revision Part 2 6 Identify the translator used in the development stage of a program? 1 7 Identify the translator used to produce the customers program? 8 Identify the three main parts of a processor and describe their function. 3 9 Identify the 3 buses of a processor and describe their function. 10 Identify and explain a security precaution used to keep data secure. 2

Revision Part 2 6. Identify the translator used in the development stage of a program? (1) Interpreter

Revision Part 2 7. Identify the translator used to produce the customers program? (1) Compiler

Revision Part 2 8. Identify the three main parts of a processor and describe their function. (3) ALU = Arithmetic Logic Unit = performs all the calculations, makes decisions based on logic (AND, OR, NOT). CU = Control Unit = Controls the movement of data to and from the processor. REGISTERS = Temporary storage location for data/instructions the processor is currently executing.

Revision Part 2 9. Identify the 3 buses of a processor and describe their function. (3) Address Bus = Holds the location of the data. Data Bus = Transfers the data between the memory and the processor. Control Bus = Handles the control signals (write/read)

Revision Part 2 10. Identify and explain a security precaution used to keep data secure. (2) Firewall Encryption Username & Password