Microprocessor
After RESET 8255 will be in

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

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Microprocessor
The correct sequence of steps in the instruction cycle of a basic computer is

 Read effective address, Decode, Fetch and Execute.
 Fetch, Execute, Decode and Read effective address.
 Fetch, Read effective address, Decode and Execute.
 Fetch, Decode, Read effective address and, Execute.

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