CS609-Midterm
1 / 50
Software based flow control make use of -------- control characters
2 / 50
BPB stands for _________.
3 / 50
The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register.
4 / 50
Counter register can be used to divide clock signal.
5 / 50
___________ is used to identify cause of interrupt.
6 / 50
Interrupt 9 usually reads the _________ from keyboard.
7 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
8 / 50
If we use keep (0, 1000) in a TSR program, the memory allocated to it is
9 / 50
File system used in CD’s is_______ file system
10 / 50
________means typematic rate will be sent in next byte.
11 / 50
Command register is an _____ bit register
12 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
13 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
14 / 50
The output on the monitor is controlled by a controller called __________within the PC.
15 / 50
The ______ service # is not used in any interrupt.
16 / 50
There are two type of communication synchronous and Anti Synchronous
17 / 50
The -------- function receive a byte and COM port number is passed as parameter using BIOS service
18 / 50
In self test mode the output of the UART is routed to its input.
19 / 50
The interval timer can operate in ____modes.
20 / 50
Standard PC can have _____ PPI.
21 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
22 / 50
There are two main types of interrupts namely _________________.
23 / 50
_____ bit is cleared to indicate the low nibble is being sent.
24 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
25 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
26 / 50
Communication between keyboard and keyboard controller is __________.
27 / 50
______ is used to set time.
28 / 50
Only ________ ports are important from programming point of view.
29 / 50
Keyboard uses port ____ as status port.
30 / 50
The PPI acts as an interface between the CPU and a parallel ________ .
31 / 50
DCE stands for __________.
32 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
33 / 50
Int 14H____________ can be used to send a byte
34 / 50
If keyboard buffer is empty the head and tail points at the same location.
35 / 50
The keyboard input character scan code is received at ___ port.
36 / 50
DSR stands for __________ .
37 / 50
The following command “outportb (0x61,inportb(0x61) & 0xFC);” will
38 / 50
Interrupt ______ is used to get or set the time.
39 / 50
____ No. of bytes are used to store the character in the keyboard buffer.
40 / 50
Timer interrupt is a _________.
41 / 50
_______ is LED control byte.
42 / 50
The________ function uses the COM port number to receive a byte from the COM port using BIOS services.
43 / 50
Hardware Interrupts are __________.
44 / 50
45 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
46 / 50
A single interrupt controller can arbitrate among ____ different devices.
47 / 50
By cascading two DMAs ____ bits can be transferred.
48 / 50
------------ is used to set time from RTC
49 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
50 / 50
Each paragraph in keep function is ____ bytes in size.
Your score is
The average score is 0%
Restart quiz
