J277 - 1.1 Systems Architecture MCQs 3

Data and instructions in use are stored in the:

• Processor
• Embedded system
• Hard Disk Drive
• Main memory

Moore’s Law predicted…

• That the number of transistors on a circuit board would double ever year
• Computers would be capable of thinking and learning for themselves by 2020
• That the number of cores on a processor would double every year
• The performance increase of computers would eventually halt in 2020

What component holds the address of the next instruction?

• Memory Address Register
• Memory Data Register
• Program Counter
• Accumulator

Results of calculations are held in this register:

• Memory Address Register
• Memory Data Register
• Program Counter
• Accumulator

This holds the instruction/data temporarily after it is brought to the processor from the<br />main memory

• Memory Address Register
• Memory Data Register
• Program Counter
• Accumulator

This holds the number of the current instruction being worked on

• Memory Address Register
• Memory Data Register
• Program Counter
• Accumulator

This would perform an operation including the word “And”

• Arithmetic Logic Unit
• Accumulator
• Cache
• Control Unit

This would send a signal such as “Memory Read”

• Arithmetic Logic Unit
• Accumulator
• Cache
• Control Unit

This would reduce the number of memory/processor transfers

• Arithmetic Logic Unit
• Accumulator
• Cache
• Control Unit

This sends signals such as “I/O Read”

• Arithmetic Logic Unit
• Accumulator
• Cache
• Control Unit