21) Which type of RAM needs regular referred:
a. Dynamic RAM
b. Static RAM
c. Permanent RAM
d. SD RAM
22) Which RAM is created using MOS transistors:
a. Dynamic RAM
b. Static RAM
c. Permanent RAM
d. SD RAM
23) A microprocessor retries instructions from :
a. Control memory
b. Cache memory
c. Main memory
d. Virtual memory
24) The lower red curvy arrow show that CPU places the address extracted from the memory location on the_____:
a. Address bus
b. System bus
c. Control bus
d. Data bus
25) The CPU sends out a ____ signal to indicate that valid data is available on the data bus:
a. Read
b. Write
c. Both A and B
d. None of these
26) The CPU removes the ___ signal to complete the memory write operation:
a. Read
b. Write
c. Both A and B
d. None of these
27) BIU STAND FOR:
a. Bus interface unit
b. Bess interface unit
c. A and B
d. None of these
28) EU STAND FOR:
a. Execution unit
b. Execute unit
c. Exchange unit
d. None of these
29) Which are the four categories of registers:
a. General‐ purpose register
b. Pointer or index registers
c. Segment registers
d. Other register
e. All of these
30) Eight of the register are known as:
a. General‐ purpose register
b. Pointer or index registers
c. Segment registers
d. Other register
31) The four index register can be used for:
a. Arithmetic operation
b. Multipulation operation
c. Subtraction operation
d. All of these
32) IP Stand for:
a. Instruction pointer
b. Instruction purpose
c. Instruction paints
d. None of these
33) CS Stand for:
a. Code segment
b. Coot segment
c. Cost segment
d. Counter segment
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34) DS Stand for:
a. Data segment
b. Direct segment
c. Declare segment
d. Divide segment
35) Which are the segment:
a. CS: Code segment
b. DS: data segment
c. SS: Stack segment
d. ES:extra segment
e. All of these
36) The acculatator is 16 bit wide and is called:
a.AX
b. AH
c. AL
d. DL
37) How many bits the instruction pointer is wide:
a. 16 bit
b. 32 bit
c. 64 bit
d. 128 bit
38) How many type of addressing in memory:
a. Logical address
b. Physical address
c. Both A and B
d. None of these
39) The size of each segment in 8086 is:
a. 64 kb
b. 24 kb
c. 50 kb
d. 16kb
40) The _______ address of a memory is a 20 bit address for the 8086 microprocessor:
a. Physical
b. Logical
c. Both
d. None of these
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