CS609-Midterm
1 / 50
------------ is used to read time from RTC
2 / 50
DSR stands for __________ .
3 / 50
______ is LED control byte.
4 / 50
In case of synchronous communication a timing signal is required to identify the start and end of a bit.
5 / 50
The interval timer can operate in _______ modes.
6 / 50
File can be______ viewed as collection of clusters or blocks.
7 / 50
------------ whenever receive indicates the start of communication ……….. whenever receive indicates the end of communication
8 / 50
The output on the monitor is controlled by a controller called __________within the PC.
9 / 50
______ is used to set time.
10 / 50
PPI interconnection _______ bits is cleared to indicate low nibble is being sent.
11 / 50
PPI is used to perform parallel communication
12 / 50
IVT is a table containing ______ byte entries each of which is a far address of an interrupt service routine.
13 / 50
__________is used to control the printer via the BIOS
14 / 50
_________ is used to identify the cause of interrupt.
15 / 50
In self test mode the output of the UART is routed to its input
16 / 50
Register can be used to divide frequency is _________
17 / 50
Display device (Monitor) performs _________ I/O.
18 / 50
There are two main types of interrupts, namely
19 / 50
A single interrupt controller can arbitrate among ____ different devices.
20 / 50
Timer interrupt occurs _______ times every second by means of hardware.
21 / 50
File system used in CD’s is_______ file system
22 / 50
In order to produce the sound from PC internal Speaker we have to load the___bit divisor value at the ___port.
23 / 50
Interrupt Vector Table (IVT) in short is a _______ bytes sized table.
24 / 50
If printer is _____ then printer sends back the ACK signal to the printer interface
25 / 50
The Function of I/O controller is to provide ____________.
26 / 50
Communication between keyboard and keyboard controller is __________.
27 / 50
Interrupt service number is usually placed in ____________ register.
28 / 50
DTE is ____________.
29 / 50
Int ________ is used to control the printer via the BIOS.
30 / 50
UART stands for_______
31 / 50
Int 14H______ can be used to set the line parameter of the UART or COM port
32 / 50
DCE stands for __________.
33 / 50
_____ bit is cleared to indicate the low nibble is being sent.
34 / 50
Maximum number of interrupts in a standard PC is
35 / 50
The keyboard makes use of interrupt number _______ for its input operations.
36 / 50
Int 14H __________ can be used to receive a byte.
37 / 50
Int 14H __________ can be used to set the line parameter of the UART or COM port.
38 / 50
Only ________ ports are important from programming point of view.
39 / 50
Timer interrupt is a _________.
40 / 50
Set the Interrupt vector means to change the double word sized interrupt vector within IVT.
41 / 50
Hardware Interrupts are __________.
42 / 50
Counter register can be used to divide clock signal.
43 / 50
44 / 50
____ No. of bytes are used to store the character in the keyboard buffer.
45 / 50
_________ used to determine the amount of conventional memory interfaced with the processor in kilobytes.
46 / 50
By cascading two DMAs ____ bits can be transferred.
47 / 50
DTE is ___________
48 / 50
49 / 50
________ is a device incorporated into the PC to update time even if the computer is off.
50 / 50
Keyboard uses port ____ as status port.
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