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What are the different modes in that 8255 Programmable Peripheral Interface (PPI) can operate?
- Mode 0: A, B, C simple input or output level sensitive ports
- Mode 1: A, B input or output ports with strobe control in C
- Mode 2: A is bidirectional with control/handshake in B and C
Multiprogramming or multitasking? Ans: The OS manages the concurrent execution of many application programs to make best possible use of computer resources. This pattern of si
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