CS609 System Programming Quiz no 1 Solved Spring 2013

CS609 System Programming Quiz no 1 Spring 2013

In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
Which of the following register is used, if you want to block access of any Hardware
If printer is _____ then printer sends back the ACK signal to the printer interface
Select correct option:
idle
busy
Out of paper
None of the given
n counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
Select correct option:

1
2
4
16
At IRQ 7 Interrupt # ___ is used.
Select correct option:
0x0A
0x0B
0x0C
x0F
Total No. of bytes that can be stored in Keyboard Buffer is____.
Select correct option:
16
32
64
128
The ______ service # is not used in any interrupt.
Select correct option:
01
02
03
FF
if the following function, keep(1, 1000); is called in the TSR program, it means that ________ No. of bytes are reserved in the memory.
Select correct option:
8000
16000
32000
64000
____ No. of bytes are used to store the character in the key board buffer.
Select correct option:
1
2
4
8
In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
Select correct option:
1
2
4
16

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