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Q.1
Memory unit that communicates directly with the CPU is called the
main memory
Secondary memory
shared memory
auxiliary memory.
Q.2
Maximum addressing capacity of a micro processor which usesbit database &bit address base is
64 K.
4 G
both (A) & (B) .
None of thes
Q.3
Assembly language programming, minimum number of operands required for aninstruction is/are
Zero.
On
Two.
Both (B) & (C) .
Q.4
Of the following are not a machine instructions
MOV.
ORG.
EN
(B) & (C) .
Q.5
Of the following is a main memory
Secondary memory.
Auxiliary memory.
Cache memory.
Virtual memory.
Q.6
Of the following interrupt is non maskable
INTR.
RST 7.5.
RST 6.5.
TRAP.
Q.7
Is the content of Stack Pointer (SP)?
Address of the current instruction
Address of the next instruction
Address of the top element of the stack
Size of the stack.
Q.8
Register capable of shifting its binary information either to the right or the left is called a
parallel register.
serial register.
shift register.
storage register.
Q.9
compliment form (Use 6 bit word) of the numberis
111100.
110110.
110111.
1011.
Q.10
Interface that provides I/O transfer of data directly to and form the memory unitand peripheral is termed as
DD
Serial interfac
BR.
DM
Q.11
Of the program counter is added to the address part of the instruction in order to obtain the effective address is called.
relative address mod
index addressing mod
register mod
implied mod
Q.12
Information available in a state table may be represented graphically in a
simple diagram.
state diagram.
complex diagram.
data flow diagram.
Q.13
Performance of cache memory is frequently measured in terms of a quantity called
Miss ratio.
Hit ratio.
Latency ratio.
Read ratio.
Q.14
Device/circuit that goes through a predefined sequence of states upon theapplication of input pulses is called
register
flip-flop
transistor.
counter.
Q.15
Instructions which copy information from one location to another either in theprocessor’s internal register set or in the external main memory are called
Data transfer instructions.
Program control instructions.
Input-output instructions.
Logical instructions.
Q.16
The value V(x) of the target operand is contained in the address field itself, theaddressing mode is
immediat
direct.
indirect.
implie
Q.17
Address in main memory is called
Physical address
Logical address
Memory address
Word address
Q.18
Be represented in a signed magnitude format and in a 1’s complement format as
111011 & 100100
100100 & 111011
011011 & 100100
100100 & 011011
Q.19
Bit is also called
Binary bit
Flag bit
Signed bit
Unsigned bit
Q.20
Interface that provides a method for transferring binary information betweeninternal storage and external devices is called
I/O interface
Input interface
Output interface
I/O bus
0 h : 0 m : 1 s
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