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