CS609-Midterm
1 / 50
Timer interrupt is a _________.
2 / 50
DTE is ___________
3 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
4 / 50
Timer interrupt occurs _______ times every second by means of hardware.
5 / 50
Software based flow control make use of -------- control characters
6 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
7 / 50
The service number is usually placed in the ________ register.
8 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
9 / 50
The BIOS interrupt 0x1AH can be used to configure real time clock
10 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
11 / 50
Keyboard uses port ____ as status port.
12 / 50
In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
13 / 50
------------ is used to set time from RTC
14 / 50
File system used in CD’s is_______ file system
15 / 50
In self test mode the output of the UART is routed to its input
16 / 50
The interval timer can operate in _______ modes.
17 / 50
__________is used to control the printer via the BIOS
18 / 50
------------ is used to read date from RTC
19 / 50
Which port is known as Data Port______
20 / 50
Tail of keyboard should get to get the start of buffer.
21 / 50
In ____________each byte is needed to be encapsulated in start and end.
22 / 50
The PPI acts as an interface between the CPU and a parallel ________ .
23 / 50
REGS is a Union
24 / 50
Interrupt 9 usually reads the _________ from keyboard.
25 / 50
26 / 50
The keyboard makes use of interrupt number _______ for its input operations.
27 / 50
The Function of I/O controller is to provide ____________.
28 / 50
IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine.
29 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
30 / 50
Int 14H____________ can be used to send a byte
31 / 50
_____ bit is cleared to indicate the low nibble is being sent.
32 / 50
Operating system name contains ____ bytes in boot block.
33 / 50
Bit number _______ of coprocessor control word is the Interrupt Enable Flag.
34 / 50
35 / 50
Display device (Monitor) performs _________ I/O.
36 / 50
37 / 50
If CPUID instruction is not present then the processor can be a
38 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
39 / 50
Maximum number of interrupts in a standard PC is
40 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
41 / 50
Interrupt service number is usually placed in ____________ register.
42 / 50
______ is Disk interrupt.
43 / 50
A software interrupt does not require EOI (End of interrupt).
44 / 50
DSR stands for __________ .
45 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
46 / 50
________means typematic rate will be sent in next byte.
47 / 50
Usually interrupt procedures are reentrant procedures especially those interrupt procedure compiled using C language compiler are reentrant.
48 / 50
Each paragraph in keep function is ____ bytes in size.
49 / 50
Communication between keyboard and keyboard controller is __________.
50 / 50
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