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
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
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
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.
Your score is
The average score is 0%
Restart quiz
