CS609-Midterm
1 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
2 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
3 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
4 / 50
5 / 50
______ is used to set time.
6 / 50
There are __________ kinds of serial communication.
7 / 50
Standard PC operates in two modes in terms of memory which are
8 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
9 / 50
In ____________each byte is needed to be encapsulated in start and end.
10 / 50
_____ bit is cleared to indicate the low nibble is being sent.
11 / 50
DCE is _____________
12 / 50
To access the block within cluster using BIOS services the cluster number should be converted into _____.
13 / 50
Maximum number of interrupts in a standard PC is
14 / 50
__________is used to control the printer via the BIOS
15 / 50
Hardware Interrupts are __________.
16 / 50
Standard PC can have _____ PPI.
17 / 50
The Function of I/O controller is to provide ____________.
18 / 50
The interval timer can operate in ____modes.
19 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
20 / 50
Timer interrupt occurs _______ times every second by means of hardware.
21 / 50
22 / 50
______ is Disk interrupt.
23 / 50
The keyboard makes use of interrupt number _______ for its input operations.
24 / 50
BPB stands for _________.
25 / 50
DMA stands for_________
26 / 50
Communication between keyboard and keyboard controller is __________.
27 / 50
Display device (Monitor) performs _________ I/O.
28 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
29 / 50
The service _________ is called the keyboard hook service.
30 / 50
31 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
32 / 50
------------ is used to read time from RTC
33 / 50
An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O.
34 / 50
Total No. of bytes that can be stored in Keyboard Buffer is____.
35 / 50
DTE is ___________
36 / 50
________means typematic rate will be sent in next byte.
37 / 50
LPTs can be swapped.
38 / 50
REGS is a Union
39 / 50
Each paragraph in keep function is ____ bytes in size.
40 / 50
The interval timer can operate in _______ modes.
41 / 50
42 / 50
PPI stands for
43 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
44 / 50
If CPUID instruction is not present then the processor can be a
45 / 50
Counter register can be used to divide clock signal.
46 / 50
Interrupt 9 usually reads the _________ from keyboard.
47 / 50
Int ________ is used to control the printer via the BIOS.
48 / 50
Tail of keyboard should get to get the start of buffer.
49 / 50
What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?
50 / 50
PPI is used to perform parallel communication
Your score is
The average score is 0%
Restart quiz
