CS609-Midterm
1 / 50
Following is not a method of I/O
2 / 50
Interrupt ______ is used to get or set the time.
3 / 50
Only ________ ports are important from programming point of view.
4 / 50
Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.
5 / 50
There are two main types of interrupts namely _________________.
6 / 50
Interrupt _____ is empty; we can use its vector as a flag.
7 / 50
The keyboard makes use of interrupt number _______ for its input operations.
8 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
9 / 50
Standard PC operates in two modes in terms of memory which are
10 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
11 / 50
PPI stands for _____________.
12 / 50
___________ is used to identify cause of interrupt.
13 / 50
Maximum number of interrupts in a standard PC is
14 / 50
File system used in CD’s is_______ file system
15 / 50
________means typematic rate will be sent in next byte.
16 / 50
BIOS support _____________UARTS as COM ports.
17 / 50
The output on the monitor is controlled by a controller called __________within the PC.
18 / 50
______ is LED control byte.
19 / 50
Communication between keyboard and keyboard controller is __________.
20 / 50
21 / 50
_____ bit is cleared to indicate the low nibble is being sent.
22 / 50
Standard PC can have _____ PPI.
23 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
24 / 50
The service number is usually placed in the ________ register.
25 / 50
Display device (Monitor) performs _________ I/O.
26 / 50
Timer interrupt occurs _______ times every second by means of hardware.
27 / 50
There are __________ kinds of serial communication.
28 / 50
In ____________each byte is needed to be encapsulated in start and end.
29 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
30 / 50
DMA stands for_________
31 / 50
The ________function initialize the COM port whose number is passed as parameter using BIOS services.
32 / 50
REGS is a Union
33 / 50
The interval timer can operate in _______ modes.
34 / 50
Interrupt 9 usually reads the _________ from keyboard.
35 / 50
BIOS DO NOT support ______.
36 / 50
In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
37 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
38 / 50
PPI stands for
39 / 50
Which of the following are types of ISR __________.
40 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
41 / 50
The interval timer can operate in ____modes.
42 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
43 / 50
In self test mode the output of the UART is routed to its input
44 / 50
45 / 50
The Function of I/O controller is to provide ____________.
46 / 50
If printer is _____ then printer sends back the ACK signal to the printer interface
47 / 50
LPTs can be swapped.
48 / 50
Command register is an _____ bit register
49 / 50
If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____.
50 / 50
In self test mode the output of the UART is routed to its input.
Your score is
The average score is 0%
Restart quiz
