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Microprocessor

Microprocessor
In C the keywords are also called

Class words
Special words
Character words
Reserved words

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Microprocessor
Register pair used to indicate memory

 W and Z
 H and L
 D and E
 B and C

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8275
 8279
 8252

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Microprocessor
The reason for the presence of ALE pin in 8085, but not in 6800 is that

 8085 has multiplexed bus, whereas 6800 does not have
 8085 uses I/O mapped I/O, whereas 6800 uses memory mapped I/O
 None
 8085 has 5 interrupts lines, whereas 6800 has only two

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Microprocessor
After RESET 8255 will be in

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

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Microprocessor
How many bytes in a zero memory page should be reserved for vectors used by RST instructions?

 32.
 128.
 16.
 64.

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