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Draw and elucidate the block diagram of programmable interrupt controller 8259. The 8259A adds 8 vectored priority encoded interrupts to microprocessor. It can be expanded to 6
SET SCREEN With SET SCREEN the present screen simply specifies the next screen in the chain , control branches to this next screen as soon as the current screen has been proce
How will you reuse a plan? Reuse is an benefit of OO technology. Two aspects of reuse: Using existing things and making reusable new things It is simpler to reus
List the allowed register pairs of 8085. B-C register pair D-E register pair H-L register pair
Parallel Virtual Machine (PVM): PVM (Parallel Virtual Machine) is portable message passing programming system which is designed to link different heterogeneous host machines to
What is software interrupt? A software interrupt is initiated by implementing an instruction. Software interrupt is a special call instruction that behaves like an interrupt
What are Sequential Algorithms? The central assumption of the RAM model is that instructions are implemented one after another, one operation at a time. Accordingly, algorith
A certain amount of side tone is essential in telephone communication. Ans: It is true that a specific amount of side tone is necessary in telephone communication.
Evaluate x = A ‾.B + C ( ) using the convention A = True and B = False. Ans. Simplify given expression x = A ‾ .B + C ( ) as = A ‾ B + C (A ‾ + D ‾ ) (As = A ‾ +D ‾ usin
ARQ is transmitted in the event of: (A) Loss of signal (B) Error in received data (C) Improve reliability (D) During time out
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