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Microprocessor

Microprocessor
The clock speed of 8085 is

 3.2KHz.
 3.2MHz.
 1KHz.
 1MHz.

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Microprocessor
In Fortran 77 a variable name can contain special characters.

False
True

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

A negative floating point number
A smaller floating point number
Either A or B depending on the actual number
A larger floating point number

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Microprocessor
The frequency of the driving network connected between pins 1 and 2 of 8085 microprocessor is

None of these
 four times the desired frequency
 twice the desired frequency
 equal to the desired frequency

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH SP
 PUSH PSW
 POP PSW
 PUSH A

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Microprocessor
The first machine cycle of an instruction is always

 An I/O read cycle
 A memory write cycle
 A fetch cycle
 A memory read cycle

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