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Microprocessor

Microprocessor
A microcomputer consists of

 a microprocessor
 memory
All of these
 I/O device

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 8085 has multiplexed bus, whereas 6800 does not have
 8085 has 5 interrupts lines, whereas 6800 has only two
 None

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Microprocessor
What is mean by ALU

 Arithmetic logic upgrade
 Arithmetic logic unsigned
 Arithmetic logic unit
 Arithmetic local unsigned

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Microprocessor
Pick out the matching pair

 HOLD; DMA
 READY; RIM
 S0;S1;wait status
 SID; SIM

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Microprocessor
While CMP B instruction executes,

 no flags will be affected.
 only carry flag will be affected.
 only carry and zero flags will be affected.
 all flags will be affected.

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

 PROM
 PLA
 PAL
 PLD

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