CS609-Midterm
1 / 50
The interval timer can operate in ____modes.
2 / 50
In self test mode the output of the UART is routed to its input.
3 / 50
PPI is used to perform parallel communication
4 / 50
In ____________each byte is needed to be encapsulated in start and end.
5 / 50
The Function of I/O controller is to provide ____________.
6 / 50
Display device (Monitor) performs _________ I/O.
7 / 50
The -------- function receive a byte and COM port number is passed as parameter using BIOS service
8 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
9 / 50
File system used in CD’s is_______ file system
10 / 50
DSR stands for __________ .
11 / 50
Keyboard Status Byte is located at the address
12 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
13 / 50
BIOS DO NOT support ______.
14 / 50
Each paragraph in keep function is ____ bytes in size.
15 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
16 / 50
____ No. of bytes are used to store the character in the keyboard buffer.
17 / 50
To access the block within cluster using BIOS services the cluster number should be converted into _____.
18 / 50
The PPI acts as an interface between the CPU and a parallel ________ .
19 / 50
Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.
20 / 50
PPI stands for _____________.
21 / 50
Hardware Interrupts are __________.
22 / 50
DTE is ___________
23 / 50
If CPUID instruction is not present then the processor can be a
24 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
25 / 50
BIOS support _____________UARTS as COM ports.
26 / 50
To store each character in keyboard buffer ____ bytes are required.
27 / 50
_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
28 / 50
____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
29 / 50
The ____________ function simply enables the self test facility within the modem control register
30 / 50
DCE is _____________
31 / 50
32 / 50
_____ bit is cleared to indicate the low nibble is being sent.
33 / 50
What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H?
34 / 50
35 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
36 / 50
------------ is used to read time from RTC
37 / 50
The interval timer can operate in _______ modes.
38 / 50
Interrupt _____ is empty; we can use its vector as a flag.
39 / 50
40 / 50
DCE stands for __________.
41 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
42 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
43 / 50
The ________function initialize the COM port whose number is passed as parameter using BIOS services.
44 / 50
______ is Disk interrupt.
45 / 50
46 / 50
There are two main types of interrupts namely _________________.
47 / 50
------------ is used to set time from RTC
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49 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
50 / 50
The ______ service # is not used in any interrupt.
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