WorksheetsProcessor Components
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
(a) sends out signals to co-ordinate how the processor works and instructions are decoded here.
Choose from the below words
Control Unit (CU)
Central Processing Unit (CPU)
Arithmetic Logic Unit (ALU)
Current Instruction Register (CIR)
2.
(a) carries out the calculations and logical decisions. The results of its calculations are stored in the accumulator.
Choose from the below words
Control Unit (CU)
Arithmetic Logic Unit (ALU)
Accumulator (ACC)
Memory Data Register (MDR)
3.
Holds the address of the next instruction to be executed. It gets incremented with each cycle of the fetch-decode-execute cycle.
a)
Memory Address Register (MAR)
b)
Current Instruction Register (CIR)
c)
Program Counter (PC)
d)
Accumulator (ACC)
4.
Stores the data that has been fetched from or stored in memory.
a)
Memory Data Register (MDR)
b)
Data Bus
c)
Memory Address Register (MAR)
d)
Current Instruction Register (CIR)
5.
Stores the address of the data or instructions that are to be fetched from or sent to.
a)
Address Bus
b)
Memory Address Register (MAR)
c)
Memory Data Register (MDR)
d)
Data Bus
6.
The ALU makes calculations and stores the results in the (a) .
Choose from the below words
Memory Data Register (MDR)
Control Unit (CU)
Accumulator (ACC)
Program Counter (PC)
7.
Stores the most recently fetched instruction, waiting to be decoded.
a)
Program Counter (PC)
b)
Memory Data Register (MDR)
c)
Control Unit (CU)
d)
Current Instruction Register (CIR)
8.
Used to transmit data between areas of the processor.
a)
Data Bus
b)
Address Bus
c)
Memory Data Register (MDR)
d)
Control Unit (CU)
9.
Used to carry the address to which the data is being transmitted.
a)
Control Bus
b)
Address Bus
c)
Memory Address Register (MAR)
d)
Memory Data Register (MDR)
10.
(a) is used to send control signals from control unit to other parts of the processor
100 %
