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Microprocessor

Microprocessor
DMA is used between

 microprocessor and I/O
 none
 memory and I/O
 microprocessor and memory

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Microprocessor
The clock speed of 8085 is

 1MHz.
 1KHz.
 3.2KHz.
 3.2MHz.

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Microprocessor
Which of the following instruction is not possible in 8085?

 POP D
 POP B
 POP 30 H
 POP PSW

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Microprocessor
Identify the communication interfacing device from the following

 8257
 8155
 8255
 8251

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Microprocessor
The length of bus cycle in 8086/8088 is four clock cycles, T1, T2, T3, T4 and an indeterminate number of wait state clock cycles denoted by Tw. The wait states are always inserted between

 T1 & T2
 T2 & T3
 T4 & T1
 T3 & T4

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Microprocessor
In C the keywords are also called

Reserved words
Special words
Class words
Character words

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