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Microprocessor

Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 512
 256
 285
 65536

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Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 CLR A
 SUB A
 MOV A, 00H
 ORA A

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 640ns
 320ns
 960ns
 1280ns

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

True
False

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Microprocessor
Output of the assembler in machine codes is referred to as

 Macroinstruction
 Object program
 Source program
 Symbolic addressing

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Microprocessor
After RESET 8255 will be in

 mode 0; all ports are output
 mode 2
 mode 0; all ports are input
 unchanged condition

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