CS609-Midterm
1 / 50
There are two main types of interrupts, namely
2 / 50
There are two type of communication synchronous and Anti Synchronous
3 / 50
What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?
4 / 50
The keyboard makes use of interrupt number _______ for its input operations.
5 / 50
Hardware Interrupts are __________.
6 / 50
Total No. of bytes that can be stored in Keyboard Buffer is____.
7 / 50
_____ bit is cleared to indicate the low nibble is being sent.
8 / 50
DSR stands for __________ .
9 / 50
PPI stands for
10 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
11 / 50
To distinguish 486 with Pentium CPUID Test is used.
12 / 50
File system used in CD’s is_______ file system
13 / 50
The Function of I/O controller is to provide ____________.
14 / 50
To store each character in keyboard buffer ____ bytes are required.
15 / 50
In ____________each byte is needed to be encapsulated in start and end.
16 / 50
PPI is used to perform parallel communication
17 / 50
DTE is ____________.
18 / 50
The service _________ is called the keyboard hook service.
19 / 50
Standard PC operates in two modes in terms of memory which are
20 / 50
21 / 50
Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.
22 / 50
An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O.
23 / 50
BPB stands for _________.
24 / 50
25 / 50
______ is Disk interrupt.
26 / 50
NMI Stand for
27 / 50
The interval timer can operate in ____modes.
28 / 50
In self test mode the output of the UART is routed to its input
29 / 50
Display device (Monitor) performs _________ I/O.
30 / 50
____ No. of bytes are used to store the character in the keyboard buffer.
31 / 50
32 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
33 / 50
------------ is used to set time from RTC
34 / 50
Control information in files is maintained using
35 / 50
There are two main types of interrupts namely _________________.
36 / 50
By cascading two DMAs ____ bits can be transferred.
37 / 50
The bit number _______ of the coprocessor control word is the interrupt enable flag.
38 / 50
__________is used to control the printer via the BIOS
39 / 50
Following is not a method of I/O
40 / 50
Only ________ ports are important from programming point of view.
41 / 50
PPI stands for _____________.
42 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
43 / 50
The service number is usually placed in the ________ register.
44 / 50
The PPI acts as an interface between the CPU and a parallel ________ .
45 / 50
The amount of memory above conventional memory (extended memory) can be determined using the service _______.
46 / 50
The BIOS interrupt ________ can be used to configure RTC.
47 / 50
Int 14H____________ can be used to send a byte
48 / 50
LPTs can be swapped.
49 / 50
Operating system name contains ____ bytes in boot block.
50 / 50
Software based flow control make use of -------- control characters
Your score is
The average score is 0%
Restart quiz
