Q.1
In 8085
  • P flag is set when the result has even parity
  • P flag is set when the result has odd parity
  • P flag is reset when the result has odd parity
  • P flag is reset when the result has even parity
Q.2
The five flags inare designated as
  • Z, CY, S, P and AC
  • D, Z, S, P, AC
  • Z, C, S, P, AC
  • Z, CY, S, D, AC
Q.3
Whichof the following is the fastest ADC
  • DUAL SLOPE
  • successive approximation
  • flash
  • single slope
Q.4
The minimum number of transistors required to implement a two input AND gate is
  • 2
  • 4
  • 6
  • 8
Q.5
Basic steps of execution of an instruction is
  • fetch → execute → decode
  • decode → fetch → execute
  • execute → fetch → decode
  • fetch → decode → execute
Q.6
A microprocessor is ALU
  • and control unit on a single chip.
  • and memory on a single chip.
  • register unit and I/O device on a single chip.
  • register unit and control unit on a single chip.
Q.7
Pseudo instructions are basically
  • false instructions
  • instructions that are ignored by the microprocessor
  • assembler directives
  • instructions that are treated like comments
Q.8
Which are the four categories of registers:
  • General‐ purpose register
  • Pointer or index registers
  • Segment registers
  • All of these
Q.9
The microcomputer system by using the ____device interface
  • Input
  • Output
  • Both a and b
  • None of these
Q.10
The ____ place the data from a register onto the data bus.
  • CPU
  • ALU
  • Both a and b
  • None of these
Q.11
To locate a data item for storage is
  • Field
  • Feed
  • Database
  • Fetch
Q.12
Which of the following terms is the most closely related to main memory?
  • Non volatile
  • Permanent
  • Control unit
  • Temporary
Q.13
The secondary storage devices can only store data but they cannot perform
  • Arithmetic Operation
  • Logic operation
  • Fetch operations
  • Either of the above
Q.14
What are the three decisions making operations performed by the ALU of a computer?
  • Greater than
  • Less than
  • Equal to
  • All of the above
Q.15
Which of the following items are examples of storage devices?
  • Floppy / hard disks
  • CD‐ROMs
  • Tape devices
  • All of the above
Q.16
An integrated circuit is
  • A complicated circuit
  • An integrating device
  • Much costlier than a single transistor
  • Fabricated on a tiny silicon chip
Q.17
The first microprocessor built by the Intel Corporation was called
  • 8008
  • 8080
  • 4004
  • 8800
Q.18
Which of the following memories needs refresh?
  • SRAM
  • DRAM
  • ROM
  • None of these
Q.19
Which of the following is used as a primary storage device?
  • Magnetic drum
  • PROM
  • Floppy disk
  • All of above
Q.20
The language that the computer can understand and execute is called
  • Machine language
  • Application software
  • System program
  • None of these
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