CS609-Midterm
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File system used in CD’s is_______ file system
2 / 50
LPTs can be swapped.
3 / 50
DTE is ____________.
4 / 50
DSR stands for __________ .
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The keyboard makes use of interrupt number _______ for its input operations.
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The ______ service # is not used in any interrupt.
7 / 50
Control information in files is maintained using
8 / 50
By cascading two DMAs ____ bits can be transferred.
9 / 50
To set the interrupt vector means is to change the double word sized interrupt vector within the IVT.
10 / 50
Which of the following are types of ISR __________.
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------------ is used to read time from RTC
12 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
13 / 50
In self test mode the output of the UART is routed to its input
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15 / 50
Software based flow control make use of -------- control characters
16 / 50
Int 14H____________ can be used to send a byte
17 / 50
The bit ______ of Line control register in UART, if cleared will indicate that DLL is the data register.
18 / 50
___________ is used to identify cause of interrupt.
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PPI stands for _____________.
20 / 50
DTE is ___________
21 / 50
The interval timer can operate in ____modes.
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_____ bit is cleared to indicate the low nibble is being sent.
23 / 50
Interrupt _____ is empty; we can use its vector as a flag.
24 / 50
A single interrupt controller can arbitrate among ____ different devices.
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Hardware Interrupts are __________.
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The Function of I/O controller is to provide ____________.
27 / 50
The amount of memory above conventional memory (extended memory) can be determined using the service _______.
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29 / 50
In self test mode the output of the UART is routed to its input.
30 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
31 / 50
____whenever received indicates the start of communication and ______ whenever received indicates a temporary pause in the communication.
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IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine.
33 / 50
At IRQ 7 Interrupt # ___ is used.
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35 / 50
There are two main types of interrupts, namely
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REGS is a Union
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________means typematic rate will be sent in next byte.
38 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
39 / 50
NMI Stand for
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------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
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Operating system name contains ____ bytes in boot block.
42 / 50
Maximum number of interrupts in a standard PC is
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The bit number _______ of the coprocessor control word is the interrupt enable flag.
44 / 50
The BIOS interrupt ________ can be used to configure RTC.
45 / 50
The interval timer can operate in _______ modes.
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_________ is used to identify the cause of interrupt.
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Which port is known as Data Port______
49 / 50
____ No. of bytes are used to store the character in the keyboard buffer.
50 / 50
There are two type of communication synchronous and Anti Synchronous
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