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Microprocessor

Microprocessor
The ROM programmed during manufacturing process itself is called

 EEPROM
 EPROM
 PROM
 MROM

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Microprocessor
In an intel 8085A, which is the first machine cycle of an instruction?

 An op-code fetch cycle
 A memory read cycle
 A memory write cycle
 An I/O read cycle

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Microprocessor
The microprocessor issues ALE during first T-state of

 memory WRITE cycle only
 memory READ cycle only
 every machine cycle
 fetch cycle only

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Microprocessor
The number of interrupt lines in 8085 is

3
4
5
2

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Microprocessor
What is mean by ALU

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

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Microprocessor
If m is a power of 2, the number of select lines required for an m-input mux is:

m
log2 (m)
2^m
2*m

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