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Microprocessor

Microprocessor
The ROM programmed during manufacturing process itself is called

 PROM
 EEPROM
 EPROM
 MROM

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Microprocessor
SUB A instruction in 8085

 reset zero and parity flags
 sets zero and carry flags
 sets zero and sign flags
 reset carry and sign flags

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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

 T4 & T1
 T2 & T3
 T3 & T4
 T1 & T2

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Microprocessor
The operating modes of 8255 A are called

Mode 0, mode 2 and mode 3
Mode 0, mode 1 and mode 2
Mode 0 and mode 2
Mode 0 and mode 1

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Microprocessor
In 8085 which addressing mode is also called inherent addressing?

Register
Implicit
Direct
Immediate

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Microprocessor
PSW stands for

 accumulator contents
 none
 accumulator and flag register contents
 flag byte

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