CS609 Midterm Online Quiz

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CS609-Midterm

1 / 50

Control information in files is maintained using

2 / 50

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

3 / 50

Each paragraph in keep function is ____ bytes in size.

4 / 50

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

5 / 50

Only ________ ports are important from programming point of view.

6 / 50

Interrupt _____ is empty; we can use its vector as a flag.

7 / 50

The interval timer can operate in ____modes.

8 / 50

___________ is used to identify cause of interrupt.

9 / 50

UART stands for_______

10 / 50

The ____________ function simply enables the self test facility within the modem control register

11 / 50

DTE is ____________.

12 / 50

The ______ service # is not used in any interrupt.

13 / 50

Hardware Interrupts are __________.

14 / 50

Int 14H____________ can be used to send a byte

15 / 50

To store each character in keyboard buffer ____ bytes are required.

16 / 50

If printer is _____ then printer sends back the ACK signal to the printer interface

17 / 50

Timer interrupt is a _________.

18 / 50

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

19 / 50

There are __________ kinds of serial communication.

20 / 50

_________ is used to identify the cause of interrupt.

21 / 50

DTE is ____________.

22 / 50

____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.

23 / 50

Tail of keyboard should get to get the start of buffer.

24 / 50

In ____________each byte is needed to be encapsulated in start and end.

25 / 50

PPI is used to perform parallel communication

26 / 50

_______ is LED control byte.

27 / 50

The interval timer can operate in _______ modes.

28 / 50

Register can be used to divide frequency is _________

29 / 50

_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.

30 / 50

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

31 / 50

Following is not a method of I/O

32 / 50

Maximum number of interrupts in a standard PC is

33 / 50

The ________function initialize the COM port whose number is passed as parameter using BIOS services.

34 / 50

Only ________ ports are important from programming point of view.

35 / 50

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

36 / 50

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

37 / 50

Communication between keyboard and keyboard controller is __________.

38 / 50

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

39 / 50

Interrupt Vector Table (IVT) in short is a _______ bytes sized table.

40 / 50

There are two type of communication synchronous and Anti Synchronous

41 / 50

File system used in CD’s is_______ file system

42 / 50

The interval timer can operate in ____modes.

43 / 50

In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.

44 / 50

The service number is usually placed in the ________ register.

45 / 50

An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O.

46 / 50

The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register.

47 / 50

______ is Disk interrupt.

48 / 50

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

49 / 50

PPI stands for

50 / 50

Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.

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