Test: Microprocessor(8085) - Electrical Engineering (EE) MCQ

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.

Accumulator, temporary register, arithmetic and logic circuits.

Accumulator, arithmetic, logic circuits and five flags.

Accumulator, arithmetic and logic circuits.

Accumulator, temporary resister, arithmetic, logic circuits & five flags

1 only

2 only

2 and 3

1, 2 and 3

2000 – 20 FF

2D00 – 2DFF.

2E00 – 2EFF.

FD00 – FDFF

E000 – EFFF

000E – FFFE

1000 – FFFF

0001 – FFF1

7800 H – 7 FFF H

1000 H – 1 EFF H

8000 H – 8 FFF H

8800 H – 8 FFF H

6 MOS transistors

2 MOS transistor and 2 capacitors

2 MOS transistors and 4 capacitors

1 MOS transistor and 1 capacitor

1

2

3

4

SRAM

DRAM

PROM

EPROM

ROM is a Read/Write memory

PC points to the last instruction that was executed.

Stack works on the principal of LIFO

All instructions affect the flags

RAM is a non-volatile memory whereas ROM is a volatile memory.

RAM is a volatile memory whereas ROM is a non - volatile memory

Both RAM and ROM are non - volatile memories but in RAM data is lost when power is switched off.

none

PROM contains a programmable 'AND' array and a fixed 'OR' array

PLA contains a fixed 'AND' array and a programmable 'OR' array

PROM contains a fixed 'AND' array and a programmable 'OR' array,

PLA contains a programmable 'AND' array and a programmable 'NOR' array

as a microprocessor

as a dynamic memory

to realise a sequential logic

to realise a combinational logic

AND array alone is programmable

OR array alone is programmable.

both AND and OR are programmable

both AND and OR are not programmable

PLA is sequential, ROM is combinational

PLA is combinational, ROM is sequential

PLA economizes on the number of minterms to implement Boolean functions.

PLA has fixed AND array, ROM has fixed OR array.

6 transistors

2 transistors and 2 capacitors

2 capacitors only

1 transistors and 1 capacitors

16 k bytes

32 k bytes

48 k bytes

64 k bytes

8 bits, 16 bits and 24 bits respectively.

8 bits, 16 bits and 32 bits respectively.

8 bits, 16 bits and 64 bits respectively.

8 bits, 16 bits and 128n bits respectively

2

4

6

8

1 and 2

1 Only

2 Only

4 Only

16 k

32 k

64 k

128 k

interrupts

DMA

virtual memory

cache memory

LIFO

FIFO

LRU

Random

Register

Immediate

Register indirect

Relative

Instruction register

Memory address resister

Status register

Temporary data register