Characteristics of a CPU

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

Processors have a speed measured in bits and bytes

• TRUE

• FALSE

Data and instructions in use are stored in the :

• Processor

• Embedded system

• Hard drive

• Main Memory

What does NOT affect the performance of the computer:

• Clock speed

• The number of instructions in a program

• Cache size

• Number of cores

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

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

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

What component holds the address of the next instruction

• Accumulator

• Program counter

• Memory address register

• Memory data register

This would send a signal such as "memory read"

• Arithmetic logic unit

• Control unit

• Cache

• Accumulator

What is transferred down the data bus?

• Data only

• Addresses only

• Data and addresses

• Data and instructions