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- 1. Multiple Choice
The ____________ provides a key operating function for the whole system and is sometimes called the "brain" of the computer
Motherboard
Central processing unit
Hard drive
RAM memory
- 2. Multiple Choice
Processors have a speed measured in bits and bytes
TRUE
FALSE
- 3. Multiple Choice
Data and instructions in use are stored in the :
Processor
Embedded system
Hard drive
Main Memory
- 4. Multiple Choice
What does NOT affect the performance of the computer:
Clock speed
The number of instructions in a program
Cache size
Number of cores
- 5. Multiple Choice
If the number of cores increase from two cores to four cores, what is the exact effect on performance?
Performance decrease
The maximum number of instructions per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of of instructions executed per second is halved which increases performance
- 6. Multiple Choice
If the processing speed goes up from 1GHZ to 4GHZ - what is the exact effect on the performance of the computer?
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second is quartered
The maximum number of instructions executed per second is halved
- 7. Multiple Choice
If the processing speed goes up from 2GHZ per core to 4GHZ and the number of cores goes from 2 to 4 - What is the exact effect on the performance of the computer?
The maximum number of instructions executed per second doubles
The maximum number of instructions executed per second quadruples
The maximum number of instructions executed per second halves
The maximum number of instructions executed per second quartered
- 8. Multiple Choice
What component holds the address of the next instruction
Accumulator
Program counter
Memory address register
Memory data register
- 9. Multiple Choice
This would send a signal such as "memory read"
Arithmetic logic unit
Control unit
Cache
Accumulator
- 10. Multiple Choice
What is transferred down the data bus?
Data only
Addresses only
Data and addresses
Data and instructions
- 11. Multiple Choice
What caries the address of the next instruction that will be fetched
Data bus
Control bus
Address bus
System bus
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