CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

PPI interconnection _______ bits is cleared to indicate low nibble is being sent.

2 / 50

______ is used to set time.

3 / 50

Display device (Monitor) performs _________ I/O.

4 / 50

Control information in files is maintained using

5 / 50

If CPUID instruction is not present then the processor can be a

6 / 50

Int_____________ service 0 can be used to set the line parameter of the UART or COM port.

7 / 50

DSR stands for __________ .

8 / 50

DMA stands for_________

9 / 50

In keyboard status byte bit no. 2 and 3 are used for ctrl and alt keys respectively. which of the following condition is used to check that Ctrl + Alt keys are pressed. Where: unsigned char far * scr = (unsigned char far *)(0x00400017);

10 / 50

In case of synchronous communication a timing signal is required to identify the start and end of a bit.

11 / 50

The amount of memory above conventional memory (extended memory) can be determined using the service _______.

12 / 50

The -------- function receive a byte and COM port number is passed as parameter using BIOS service

13 / 50

_________ is used to identify the cause of interrupt.

14 / 50

The keyboard makes use of interrupt number _______ for its input operations.

15 / 50

DCE stands for __________.

16 / 50

File can be______ viewed as collection of clusters or blocks.

17 / 50

Register can be used to divide frequency is _________

18 / 50

The output on the monitor is controlled by a controller called __________within the PC.

19 / 50

The PPI acts as an interface between the CPU and a parallel ________ .

20 / 50

The keyboard makes use of interrupt number _______ for its input operations.

21 / 50

To distinguish 486 with Pentium CPUID Test is used.

22 / 50

____ No. of bytes are used to store the character in the keyboard buffer.

23 / 50

The bit number _______ of the coprocessor control word is the interrupt enable flag.

24 / 50

File system used in CD’s is_______ file system

25 / 50

BIOS DO NOT support ______.

26 / 50

DCE is _____________

27 / 50

BIOS support _____________UARTS as COM ports.

28 / 50

Counter register can be used to divide clock signal.

29 / 50

If keyboard buffer is empty the head and tail points at the same location.

30 / 50

In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles

31 / 50

If we use keep (0, 1000) in a TSR program, the memory allocated to it is

32 / 50

DTE is ____________.

33 / 50

The BIOS interrupt 0x1AH can be used to configure real time clock

34 / 50

Int 14H______ can be used to set the line parameter of the UART or COM port

35 / 50

------------ is used to set time from RTC

36 / 50

Standard PC operates in two modes in terms of memory which are

37 / 50

In self test mode the output of the UART is routed to its input.

38 / 50

In self test mode the output of the UART is routed to its input

39 / 50

LPTs can be swapped.

40 / 50

_____ bit is cleared to indicate the low nibble is being sent.

41 / 50

________ is a device incorporated into the PC to update time even if the computer is off.

42 / 50

The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).

43 / 50

There are __________ kinds of serial communication.

44 / 50

Int 14H __________ can be used to set the line parameter of the UART or COM port.

45 / 50

Standard PC operates in two modes in terms of memory which are

46 / 50

DTE is ___________

47 / 50

The interval timer can operate in ____modes.

48 / 50

Maximum number of interrupts in a standard PC is

49 / 50

The keyboard makes use of interrupt number _______ for its input operations.

50 / 50

A software interrupt does not require EOI (End of interrupt).

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