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CUSTOMER_CODE
SMUDE
DIVISION_CODE
SMUDE
EVENT_CODE
APR2016
ASSESSMENT_CODE BCA3030_APR2016
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
18006
QUESTION_TEXT
Explain IEEE 1284 modes.
IEEE 1284 has five modes.(2 marks each)
1. Compatibility mode
2. Nibble mode
SCHEME OF EVALUATION
3. Byte mode
4. ECP mode
5. EPP mode
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
18008
QUESTION_TEXT
Compare CISC with RISC CPUs.
SCHEME OF
EVALUATION
CISC
1.CISC chips are relatively slow
2.Use less instructions
3.Use large and complex instructions
4.Comparatively costlier
5.Use many new transistors
6.Versatile processing
7.Low performance due to the use of more number of
transistors
RISC
1.RISC chips are comparably faster
2.Comparatively use more instructions
3.Use fewer, simpler and faster instructions
4.Cheaper
5.Use fewer transistors
6.Less versatile
7.Faster CPU performance
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
119567
QUESTION_TEXT
Explain in detail various types of Memory.
1.
ROM:–is a integrated circuit chip that allow the user only to read
and not to edit or modify the data inside it. Due to the embedding of
programmes data is not erased or neither be changed. But the
disadvantage with ROM chip is once the data is stored by the
manufacture it cannot be erased.
Types of ROM:
a.
PROM–you can write the data only once into it.
b.
EPROM–you can erase the data and overwrite the data into
it. But you cannot keep or delete the part of old content and add new.
c.
EEPROM–you can edit/modify or delete a part of data and
use it for storing the data.
2.
SCHEME OF
EVALUATION
RAM:–
EDORAM–extends the validity time of the output.
BEDORAM–is the extended versions of EDORAM which was
developed to read large blocks of data bits than EDO RAM.
DRAM–is mostly used by the PCs for their system’s main memory. It
uses single capacitor and transistor to hold the data bit.
SRAM–is used to hold data that can stay for a longer time without the
need of refresh circuit. It holds data bit as long as current supply exists in
the circuit.
SDRAM–is very much different from other types since it is connected to
the system clock and able to read and write in burst mode at the rate of 1
clock cycle per data bit.
DDRSDRAM–its functions are similar to SDRAM but it supports more
bandwidth by transferring twice data bit per cycle.
EDRAM–is a DRAM in which small amount of SRAM is embedded
inside the large amount of DRAM so that the memory access can be
made faster by embedding two memory into one.
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
119570
QUESTION_TEXT
Give the advantages and disadvantages of switching power circuits.
Advantages of switching power circuit
When the switching transistor is on, the current is drawn in the
primary circuit. Therefore, power wastage is very less in the primary
circuit.
The secondary circuit provides just enough power to keep the load
voltage regulated. Therefore, power wastage is very less in the
secondary rectifier, filter and switching circuit.
This concept can reach a higher efficiency than linear supplies.
Components are small in size and packed tightly.
SCHEME OF
EVALUATION
Disadvantages
It acts as radio transmitters and causes problems in radio and
television reception.
The shield on the switching circuit needs to be replaced very often,
whenever power supply is repaired.
Strong electromagnetic spectrum can easily disturb the working of the
logic circuit.
There is not enough noise in the circuit to interfere with the load as
all the noise has been removed by the filter which is designed with
care. The output voltage will always have some amount of high
frequency ripple.
Troubleshooting is very difficult as it contains many components
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
167290
QUESTION_TEXT
Discuss briefly configuring the standard CMOS setup.
SCHEME OF
EVALUATION
Computer hardware specification gathering:you need to gather necessary information
needed to configure the CMOS.
-You need to select the second screen to set the parameters for the booting and disk
drives.
-In order to set the video characteristics you need to set the shadow memory and
disable the video on-board memory.
-When you create a setting on the computer you need to enter legacy products that
don’t detect the PnP details.
-You can re-enter the CMOS settings program and check for any errors if your
system don’t boot and rectify them.
Entries found commonly in the CMOS standard setup menu list
-Date and Time:you can change the date and time of the system clock using these
settings.
-Error halt: if an error is detected in the initial stage of the PC start, to ensure whether
the PC will stop, this entry is used. There are some more similar entries which help in
handling the halt.
-Floppy drive A:this setting is used to know the type of the floppy of the floppy drive
installed for drive A.
-Halt on: whenever you need to skip the errors during the POST, you can use this
entry.
-Hard disk C: you can auto-detect the hard drive attributes by setting the SCSI drive
setting the position as none.
-Like floppy disk drive hard disk drive also has two drives C and D.
-Daylight savings: this entry helps in allowing the RTC to activate the daylight
saving scheme.
-HDD Delay: When the BOOT is very fast then there may not be enough time to
initiate itself properly therefore this setting helps in prompting delay in the boot up
and identify the hard disk drive.
-Keyboard: this setting helps to identify whether a keyboard is attached to the system.
-Memory: this setting is used to choose the kind of memory elements to be displayed
in the start time. Based on the following types the content is distinguished by the
BIOS POST:
Base memory
Extended memory
Other memory
Total memory
-Primary display: this setting is used to identify the type of display used in the
system.
-Quick Power-on-Self-Test: you can speed up your booting time by selecting Quick
POST.
(10 marks)
QUESTION_TYPE
DESCRIPTIVE_QUESTION
QUESTION_ID
167292
QUESTION_TEXT
Explain WDM driver types. Write a note on three kinds of drivers in the context of
Plug and Play.
The WDM Bus drivers are the standard WDM drivers that describe bus capabilities
and control the bus power management and plug and play.
Three kinds of drivers
SCHEME OF
EVALUATION
1.
Bus driver
2.
Function driver
3.
filter driver
(10 marks)