CS609-Midterm
1 / 50
Interrupt 9 usually reads the _________ from keyboard.
2 / 50
_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
3 / 50
Counter register can be used to divide clock signal.
4 / 50
DTE is ____________.
5 / 50
Operating system name contains ____ bytes in boot block.
6 / 50
IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine.
7 / 50
The BIOS interrupt ________ can be used to configure RTC.
8 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
9 / 50
DSR stands for __________ .
10 / 50
The following command “outportb (0x61,inportb(0x61) | 3);” will ________ .
11 / 50
In counter register bit no. 3 changes its value between 0 and 1 with in ____clock cycles
12 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
13 / 50
Communication between keyboard and keyboard controller is __________.
14 / 50
If CPUID instruction is not present then the processor can be a
15 / 50
UART stands for_______
16 / 50
The Function of I/O controller is to provide ____________.
17 / 50
DTE is ___________
18 / 50
Each paragraph in keep function is ____ bytes in size.
19 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
20 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
21 / 50
------------ is used to set time from RTC
22 / 50
REGS is a Union
23 / 50
The keyboard makes use of interrupt number _______ for its input operations.
24 / 50
Control information in files is maintained using
25 / 50
______ is used to set time.
26 / 50
Keyboard uses port ____ as status port.
27 / 50
By cascading two DMAs ____ bits can be transferred.
28 / 50
In ____________each byte is needed to be encapsulated in start and end.
29 / 50
Which port is known as Data Port______
30 / 50
DCE stands for __________.
31 / 50
The amount of memory above conventional memory (extended memory) can be determined using the service _______.
32 / 50
Int 14H __________ can be used to receive a byte.
33 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
34 / 50
If we use keep (0, 1000) in a TSR program, the memory allocated to it is
35 / 50
_______ is LED control byte.
36 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
37 / 50
The ______ service # is not used in any interrupt.
38 / 50
BIOS DO NOT support ______.
39 / 50
PPI stands for _____________.
40 / 50
41 / 50
______ is Disk interrupt.
42 / 50
Int 14H____________ can be used to send a byte
43 / 50
The ____________ function simply enables the self test facility within the modem control register
44 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
45 / 50
File system used in CD’s is_______ file system
46 / 50
File can be______ viewed as collection of clusters or blocks.
47 / 50
Maximum number of interrupts in a standard PC is
48 / 50
To distinguish 486 with Pentium CPUID Test is used.
49 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
50 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
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