Computer Organization -cs1 AND cs3

1) The instruction -> Add LOCA, R0 does _______

• a) Adds the value of LOCA to R0 and stores in the temp register

• b) Adds the value of R0 to the address of LOCA

• c) Adds the values of both LOCA and R0 and stores it in R0

• d) Adds the value of LOCA with a value in accumulator and stores it in R0

2) During the execution of a program which gets initialized first?

• a) MDR

• b)IR

• c)PC

• d) MAR

3) The main virtue for using single Bus structure is ____________

• a) Fast data transfers

• b) Cost effective connectivity and speed

• c) Cost effective connectivity and ease of attaching peripheral devices

• d) None of the mentioned

4) Which of the following allows simultaneous write and read operations?

• a) ROM

• b)EROM

• c)RAM

• d) None of the above

5) Which of the following operations is/are performed by the ALU?

• a) Data manipulation

• b)Exponential

• c)Square root

• d)All of the above

6) Which of the following memory of the computer is used to speed up the computer processing?

• a) Cache memory

• b)RAM

• c)ROM

• d)None of the above

7) The address in the main memory is known as –

• a) Logical address

• b) Physical address

• c) Memory address

• d)None of the above

8) Subtraction in computers is carried out by -

• a) 1's complement

• b) 2's complement

• c)3's complement

• d)9's complement

9) Which of the following computer bus connects the CPU to a memory on the system board?

• a) Expansion bus

• b) Width bus

• c) System bus

• d)None of the above

10) Which of the following memory unit communicates directly with the CPU?

• a) Auxiliary memory

• b)Main memory

• c)Secondary memory

• d)None of the above