Q. The usual BUS structure used to connect the I/O devices is

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Q. The advantage of I/O mapped devices to memory mapped is

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Q. The system is notified of a read or write operation by

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Q. To overcome the lag in the operating speeds of the I/O device and the processor we use

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Q. The method of accessing the I/O devices by repeatedly checking the status flags is

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Q. The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is

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Q. The method which offers higher speeds of I/O transfers is

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Q. The process where in the processor constantly checks the status flags is called as

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Q. The interrupt-request line is a part of the

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Q. The return address from the interrupt-service routine is stored on the

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Q. The signal sent to the device from the processor to the device after recieving an interrupt is

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Q. When the process is returned after an interrupt service ______ should be loaded again
i) Register contents
ii) Condition codes
iii) Stack contents
iv) Return addresses

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Q. The time between the receive of an interrupt and its service is ______

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Q. Interrupts form an important part of _____ systems.

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Q. ______ type circuits are generally used for interrupt service lines

i) open-collector
ii) open-drain
iii) XOR
iv) XNOR

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Q. The resistor which is attached to the service line is called _____.

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Q. An interrupt that can be temporarily ignored is

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Q. The 8085 microprocessor respond to the presence of an interrupt

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Q. CPU as two modes privileged and non-privileged. In order to change the mode from privileged to non-privileged

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Q. Which interrupt is unmaskable…??

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