CS609-Midterm
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BIOS support _____________UARTS as COM ports.
2 / 50
REGS is a Union
3 / 50
The keyboard makes use of interrupt number _______ for its input operations.
4 / 50
The bit number _______ of the coprocessor control word is the interrupt enable flag.
5 / 50
The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register.
6 / 50
DTE is ____________.
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8 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
9 / 50
Interrupt service number is usually placed in ____________ register.
10 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
11 / 50
_____ bit is cleared to indicate the low nibble is being sent.
12 / 50
There are __________ kinds of serial communication.
13 / 50
By cascading two DMAs ____ bits can be transferred.
14 / 50
There are two type of communication synchronous and Anti Synchronous
15 / 50
If keyboard buffer is empty the head and tail points at the same location.
16 / 50
Command register is an _____ bit register
17 / 50
Timer interrupt is a _________.
18 / 50
The ______ service # is not used in any interrupt.
19 / 50
Int_____________ service 0 can be used to set the line parameter of the UART or COM port.
20 / 50
________means typematic rate will be sent in next byte.
21 / 50
LPTs can be swapped.
22 / 50
PPI stands for _____________.
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25 / 50
In self test mode the output of the UART is routed to its input.
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____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
27 / 50
At IRQ 7 Interrupt # ___ is used.
28 / 50
Timer interrupt occurs _______ times every second by means of hardware.
29 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
30 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
31 / 50
DCE is _____________
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Interrupt ______ is used to get or set the time.
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34 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
35 / 50
A single interrupt controller can arbitrate among ____ different devices.
36 / 50
In ____________each byte is needed to be encapsulated in start and end.
37 / 50
Interrupt 9 usually reads the _________ from keyboard.
38 / 50
A software interrupt does not require EOI (End of interrupt).
39 / 50
If CPUID instruction is not present then the processor can be a
40 / 50
The microprocessor package has many signals for data. Below are some in Correct priority order (Higher to Lower).
41 / 50
Communication between keyboard and keyboard controller is __________.
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43 / 50
If printer is _____ then printer sends back the ACK signal to the printer interface
44 / 50
The -------- function receive a byte and COM port number is passed as parameter using BIOS service
45 / 50
Maximum number of interrupts in a standard PC is
46 / 50
------------ is used to set time from RTC
47 / 50
Software based flow control make use of -------- control characters
48 / 50
Keyboard uses port ____ as status port.
49 / 50
50 / 50
The service number is usually placed in the ________ register.
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