CS609-Midterm
1 / 50
Display device (Monitor) performs _________ I/O.
2 / 50
______ is used to set time.
3 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
4 / 50
DTE is ____________.
5 / 50
In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
6 / 50
A software interrupt does not require EOI (End of interrupt).
7 / 50
Only ________ ports are important from programming point of view.
8 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
9 / 50
BIOS support _____________UARTS as COM ports.
10 / 50
The PPI acts as an interface between the CPU and a parallel ________ .
11 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
12 / 50
By cascading two DMAs ____ bits can be transferred.
13 / 50
File system used in CD’s is_______ file system
14 / 50
PPI stands for
15 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
16 / 50
In ____________each byte is needed to be encapsulated in start and end.
17 / 50
Tail of keyboard should get to get the start of buffer.
18 / 50
19 / 50
In keyboard status byte bit no. 2 and 3 are used for ctrl and alt keys respectively. which of the following condition is used to check that Ctrl + Alt keys are pressed. Where: unsigned char far * scr = (unsigned char far *)(0x00400017);
20 / 50
The -------- function receive a byte and COM port number is passed as parameter using BIOS service
21 / 50
BIOS DO NOT support ______.
22 / 50
The interval timer can operate in ____modes.
23 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
24 / 50
Standard PC operates in two modes in terms of memory which are
25 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
26 / 50
If we use keep (0, 1000) in a TSR program, the memory allocated to it is
27 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
28 / 50
_________ is used to identify the cause of interrupt.
29 / 50
DCE stands for __________.
30 / 50
Communication between keyboard and keyboard controller is __________.
31 / 50
Register can be used to divide frequency is _________
32 / 50
The keyboard input character scan code is received at ___ port.
33 / 50
34 / 50
The keyboard makes use of interrupt number _______ for its input operations.
35 / 50
DSR stands for __________ .
36 / 50
In self test mode the output of the UART is routed to its input.
37 / 50
------------ is used to read date from RTC
38 / 50
There are __________ kinds of serial communication.
39 / 50
40 / 50
_______ is LED control byte.
41 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
42 / 50
The service _________ is called the keyboard hook service.
43 / 50
Operating system name contains ____ bytes in boot block.
44 / 50
Maximum number of interrupts in a standard PC is
45 / 50
DMA stands for_________
46 / 50
47 / 50
In self test mode the output of the UART is routed to its input
48 / 50
_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
49 / 50
Which of the following are types of ISR __________.
50 / 50
There are two main types of interrupts namely _________________.
Your score is
The average score is 0%
Restart quiz
