CS609-Midterm
1 / 50
------------ is used to set time from RTC
2 / 50
The ____________ function simply enables the self test facility within the modem control register
3 / 50
DCE is _____________
4 / 50
To distinguish 486 with Pentium CPUID Test is used.
5 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
6 / 50
7 / 50
The keyboard makes use of interrupt number _______ for its input operations.
8 / 50
To store each character in keyboard buffer ____ bytes are required.
9 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
10 / 50
Which of the following are types of ISR __________.
11 / 50
If we want to produce the grave voice from speaker phone then we have to load the ____ divisor values at Port ____.
12 / 50
There are __________ kinds of serial communication.
13 / 50
The Function of I/O controller is to provide ____________.
14 / 50
A single interrupt controller can arbitrate among ____ different devices.
15 / 50
Hardware Interrupts are __________.
16 / 50
The -------- function receive a byte and COM port number is passed as parameter using BIOS service
17 / 50
IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine.
18 / 50
The service number is usually placed in the ________ register.
19 / 50
20 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
21 / 50
In ____________each byte is needed to be encapsulated in start and end.
22 / 50
Register can be used to divide frequency is _________
23 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
24 / 50
Software based flow control make use of -------- control characters
25 / 50
Int 14H____________ can be used to send a byte
26 / 50
_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
27 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
28 / 50
At IRQ 7 Interrupt # ___ is used.
29 / 50
Which port is known as Data Port______
30 / 50
The BIOS interrupt ________ can be used to configure RTC.
31 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
32 / 50
Communication between keyboard and keyboard controller is __________.
33 / 50
An I/O device cannot be directly connected to the busses so controller is placed between CPU and I/O.
34 / 50
DMA stands for_________
35 / 50
File system used in CD’s is_______ file system
36 / 50
The service _________ is called the keyboard hook service.
37 / 50
Keyboard uses port ____ as status port.
38 / 50
Standard PC can have _____ PPI.
39 / 50
40 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
41 / 50
The interval timer can operate in ____modes.
42 / 50
------------ is used to read date from RTC
43 / 50
Tail of keyboard should get to get the start of buffer.
44 / 50
45 / 50
________means typematic rate will be sent in next byte.
46 / 50
There are two main types of interrupts namely _________________.
47 / 50
______ is Disk interrupt.
48 / 50
___________ is used to identify cause of interrupt.
49 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
50 / 50
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