Q. ________ maintains real modes protected-mode software compatibility with 80386 architecture.

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Q. 80486DX was followed by ________.

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Q. In 8279 Strobed input mode, the control line goes low. The data on return lines is strobed in the
___________.

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Q. ________ bit in ICW1 indicates whether the 8259A is cascade mode or not ?

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Q. In 8279, a scanned sensor matrix mode, if a sensor changes its state, the __________ line goes ___________ to interrupt the CPU.

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Q. In 80186, the timer which connects to the system clock is

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Q. Which pins are general purpose I/O pins during mode-2 operation of the 82C55?

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Q. The fetching of the program from secondary memory to place it in physical memory, during the execution of CPU is called

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Q. Which of the block is not considered as a block of an architecture of 80286?

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Q. The device that interfaces and control the internal data bus with the system bus is

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Q. For which of the following instruction does the return address point to instruction causing an exception?

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Q. The 80286 is available in the package as

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Q. The clock frequency applied at the CLK pin is internally divided by

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Q. The 8 address lines, A23-A16 of 80286 are zero during

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Q. The signals S1 (active low), S2 (active low) are

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Q. If M/IO (active low) signal is ‘0’ then it indicates

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Q. The LOCK (active low) is activated automatically by hardware using

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Q. The pin that is used to insert wait states in a bus cycle is

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Q. The minimum number of clock cycles required in an input pulse width of the RESET pin is

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Q. To filter the output, a 0.047microfarads, 12V capacitor is connected between the pins

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