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Microprocessor

Microprocessor
A microprocessor with a 12-bit address bus will be able to access

 10 K bytes
 4 K bytes
 8 K bytes
 1 K bytes

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Microprocessor
Which one of the following ICs is used to interface keyboard and display?

 8253
 8279
 8251
 8259

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Microprocessor
Total number of modes the 8253 can work

 6
 4
 8
 12

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Microprocessor
Which one of the following interrupt/interrupts is/are only level triggering?

 RST 5.5
 both ‘a’ and ‘b’
 TRAP
 RST 6.5

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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
In C the keywords are also called

Character words
Class words
Reserved words
Special words

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