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Microprocessor

Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 16
 8
 18
 12

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Microprocessor
The program counter in a 8085 micro-processor is a 16-bit register, because

 It facilitates the user storing 16-bit data temporarily
 There are 16 address lines
 It has to fetch two 8-bit data at a time
 It counts 16-bits at a time

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 1000 H and 1001 H
 0FFE H and 0FFF H
 0FFF H and 0FFE H

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Microprocessor
The address bus width of a microprocessor which is capable of addressing 64 Kbytes of the memory is

 8
 16
 12
 20

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

 960ns
 1280ns
 640ns
 320ns

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

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

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