CPU, FDE and Registers (BC_Y7)

Where are registers located?

• In the CPU

• On the monitor

• In the keyboard

• Inside the mouse

Tick all that describe RAM

• Non-volatile memory

• Volatile memory

• Stores data and instructions that are currently in use

• Read Only Memory

What do the initials PC stand for in terms of registers?

• Personal computer

• Program Counter

• Program Control

• Permanent Couner

What does the Program Counter store?

• The memory address of the next data/instruction to be proessed

• The actual data/instruction that is to be processed next

• Programs

• Numbers

What does MAR stand for?

• MARS bar

• Memory Address Register

• Memory Address Reminder

• Memory Adjacent Register

What does the MAR store?

• The actual data/instruction to be processed

• The address of the next data/instruction to be processed

• The address of the current data/instruction to be processed

• Nothing, it is not a real register

What does MDR stand for?

• Memory address register

• Mad Register

• Memory Data Register

What is the MDR used to store?

• The actual data/instruction to be processed

• The address of the data/instruction to be processed

• The results of calculations which take place in the ALU

• The Contol Unit

If the current instruction being processed has the following details:

Address: 0111 Data/Instruction: 0000 1111

What would be stored in the MAR?

• 0111

• 0000 1111

What is the purpose of the ACC?

• Temporarily stores the results of any calculations made in the ALU

• To coordinate all activities taking place in the computer

• To delete data