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Microprocessor

Microprocessor
Identify the non-maskable interrupt from the following

 RST 7.5
 RST 4.5
 RST 5.5
 RST 6.5

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Microprocessor
The minimum number of transistors required to implement a two input AND gate is

8
4
2
6

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Microprocessor
A mask programmed ROM is

 erasable electrically
 programmed by the user
 erasable and programmable
 programmed at the time of fabrication

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 There are 16 address lines
 It counts 16-bits at a time
 It facilitates the user storing 16-bit data temporarily
 It has to fetch two 8-bit data at a time

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Microprocessor
The number of hardware interrupts present in 8085 microprocessor are

 10
 8
 16
 5

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

1
+0
-0
-1

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