CS609-Midterm
1 / 50
The keyboard makes use of interrupt number _______ for its input operations.
2 / 50
PPI is used to perform parallel communication
3 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
4 / 50
The interval timer can operate in _______ modes.
5 / 50
___________ is used to identify cause of interrupt.
6 / 50
Hardware Interrupts are __________.
7 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
8 / 50
DMA stands for_________
9 / 50
In self test mode the output of the UART is routed to its input.
10 / 50
Interrupt service number is usually placed in ____________ register.
11 / 50
Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.
12 / 50
Int 14H____________ can be used to send a byte
13 / 50
The interval timer can operate in ____modes.
14 / 50
If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____.
15 / 50
If we use keep (0, 1000) in a TSR program, the memory allocated to it is
16 / 50
A single interrupt controller can arbitrate among ____ different devices.
17 / 50
In ____________each byte is needed to be encapsulated in start and end.
18 / 50
------------ is used to read time from RTC
19 / 50
Control information in files is maintained using
20 / 50
File can be______ viewed as collection of clusters or blocks.
21 / 50
Register can be used to divide frequency is _________
22 / 50
23 / 50
The BIOS interrupt ________ can be used to configure RTC.
24 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
25 / 50
In self test mode the output of the UART is routed to its input
26 / 50
Int 14H __________ can be used to receive a byte.
27 / 50
DTE is ___________
28 / 50
Display device (Monitor) performs _________ I/O.
29 / 50
_____ bit is cleared to indicate the low nibble is being sent.
30 / 50
File system used in CD’s is_______ file system
31 / 50
32 / 50
Maximum number of interrupts in a standard PC is
33 / 50
On the execution of IRET instruction, number of bytes popped from stack is
34 / 50
__________is used to control the printer via the BIOS
35 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
36 / 50
Standard PC operates in two modes in terms of memory which are
37 / 50
________means typematic rate will be sent in next byte.
38 / 50
The keyboard input character scan code is received at ___ port.
39 / 50
BPB stands for _________.
40 / 50
Following is not a method of I/O
41 / 50
_______ is LED control byte.
42 / 50
Interrupt ______ is used to get or set the time.
43 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
44 / 50
To store each character in keyboard buffer ____ bytes are required.
45 / 50
We have set the bit No. 7 of IMR(Interrupt Mask Register) to unmask the Interrupt so that interrupt _____ can occur at ____ line.
46 / 50
The________ function uses the COM port number to receive a byte from the COM port using BIOS services.
47 / 50
In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
48 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
49 / 50
PPI stands for _____________.
50 / 50
There are two main types of interrupts, namely
Your score is
The average score is 0%
Restart quiz
