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Microprocessor

Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PLA
 PAL
 PROM
 PLD

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 2, 3 and 4
 1, 3 and 4
 1, 2 and 4
 1, 2 and 3

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Microprocessor
HLT opcode means

  load accumulator with contents of register.
  store result in memory.
  end of program.
  load data to accumulator.

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Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 10 K bytes
 4 K bytes
 1 K bytes
 8 K bytes

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Microprocessor
In 8085, the pins for SID and SOD are

4 and 3 respectively
5 and 4 respectively
4 and 5 respectively
3 and 4 respectively

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Microprocessor
The data bus of any microprocessor is always

 Either unidirectional or bi-directional
 Unidirectional
 None
 Bi-directional

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