1.1 System Architecture

1.1 a 
CPU stands for Computer Processing Unit

• TRUE
• FALSE

1.1 a 
CPU processes all data and instructions

• TRUE
• FALSE

1.1 a 
CPU ______________ instructions?

• FETCH EXECUTE DECODE
• FETCH DECODE EXECUTE
• EXECUTE FETCH DECODE
• EXECUTE DECODE FETCH

1.1 a 
Clock speed, number of cores and cache affects CPU performance? 

• TRUE
• FALSE

1.1 b 
Which register is being described?
Stores the results of the calculations done by the ALU

• MAR
• MDR
• Accumulator
• Program Counter

1.1 b 
Which register is being described?
Holds the memory address about to be used by the CPU

• MAR
• MDR
• Accumulator
• Program Counter

1.1 b 
Which register is being described?
Holds the data / instructions that have been fetched from memory

• MAR
• MDR
• Accumulator
• Program Counter

1.1 b 
Which register is being described?
Holds the memory address of the instruction for each cycle

• MAR
• MDR
• Accumulator
• Program Counter

1.1 b 
The program counter is not incrementing on each cycle. What is likely to happen?

• The address of the next instruction will always be the same
• The CPU will crash
• The data and instructions will be wiped
• Nothing

1.1 b 
Which statement is TRUE?

• Registers are super fast memory, stores tiny instructions which can be accessed by the CPU quickly
• Registers are super fast memory, stores lots of instructions which can be accessed by the CPU slowly