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CS401 Computer Architecture and Assembly Language MCQs from Quiz#4

CS401 Computer Architecture and Assembly Language MCQs from Quiz#4

The programmable interval timer (PIT) has input frequency of
1.193MHZ
2.193MHZ
3.193MHZ
4.193MHZ

The parallel port connector is called ?
DB-25
BD-25
DB-24
BD-24

Threads can have function calls, parameters and __________ variables
Global
Local
Legal
Illegal

The thread registration code initializes the PCB and adds it to the linked list so that the __________ will give it a turn.

Assembler
Scheduler
Linker
Debugger

The input frequency of the programmable interval timer (PIT) is
Fixed

Depends on processor clock
Variable
Depends on hardware attached

The instruction used to read a character from the keyboard port is
in al, 0x60
out al, 0x60
in al, 0x80
out al, 0x80

The INT 0x13 service 0x08 is use to
Read disk sector
Write disk sector
Reset disk sector
Get drive parameter

The first sector on hard disk contains the
Hard disk size
Partition table
Data size
Sector size

The number of pins in a parallel port connector are?
20
25
30
35
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The INT 0x13 service 0x03 is use to
Read disk sector
Write disk sector
Reset disk sector
Get drive parameter

Which of the following interrupts is used for saving and restoring the registers

INT6
INT7
INT8
INT0

All the registers & stack are saved in
multitasking
multi-processing
function call
BIOS
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Which of the following pins of a parallel port connector are grounded ?
10-18
18-25
25-32
32-39

The space where all the registers of a task are stored is called the
control block
process control block
stack
memory