CS609-Midterm
1 / 50
_______ is LED control byte.
2 / 50
What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?
3 / 50
File system used in CD’s is_______ file system
4 / 50
The service number is usually placed in the ________ register.
5 / 50
DTE is ____________.
6 / 50
The interval timer can operate in _______ modes.
7 / 50
Which port is known as Data Port______
8 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
9 / 50
The Function of I/O controller is to provide ____________.
10 / 50
PPI stands for
11 / 50
The________ function uses the COM port number to receive a byte from the COM port using BIOS services.
12 / 50
A software interrupt does not require EOI (End of interrupt).
13 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
14 / 50
Maximum number of interrupts in a standard PC is
15 / 50
The output on the monitor is controlled by a controller called __________within the PC.
16 / 50
BIOS support _____________UARTS as COM ports.
17 / 50
________means typematic rate will be sent in next byte.
18 / 50
------------ is used to read date from RTC
19 / 50
In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
20 / 50
______ is Disk interrupt.
21 / 50
DSR stands for __________ .
22 / 50
There are __________ kinds of serial communication.
23 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
24 / 50
------------ is used to set time from RTC
25 / 50
At IRQ 7 Interrupt # ___ is used.
26 / 50
27 / 50
DTE is ___________
28 / 50
Which of the following are types of ISR __________.
29 / 50
Following is not a method of I/O
30 / 50
The interval timer can operate in ____modes.
31 / 50
______ is LED control byte.
32 / 50
There are two main types of interrupts, namely
33 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
34 / 50
In self test mode the output of the UART is routed to its input
35 / 50
____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
36 / 50
37 / 50
Int 14H____________ can be used to send a byte
38 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
39 / 50
40 / 50
In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
41 / 50
_____ bit is cleared to indicate the low nibble is being sent.
42 / 50
Timer interrupt is a _________.
43 / 50
_________ is used to identify the cause of interrupt.
44 / 50
Hardware Interrupts are __________.
45 / 50
46 / 50
There are two type of communication synchronous and Anti Synchronous
47 / 50
If keyboard buffer is empty the head and tail points at the same location.
48 / 50
DMA stands for_________
49 / 50
50 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
Your score is
The average score is 0%
Restart quiz
