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Best interview I have given in my life - TCS HR Manager
Posted Date: 23 May 2008 Resource Type: Articles/Knowledge Sharing Category: Jobs & Interviews
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Posted By: bharath sudar Member Level: Platinum
Rating:  Points: 1
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One of the best interviews till now i have given in my life, the questions include-
1. What is meant by interrupt vector table? what it's use?
ANS. In micro-controller the interrupt vector table has consist
of vector address(location) of various interrupt signals. if
when any interrupt is occur the CPU execute current
instruction and store next instruction address to stack and
then transfer the control PC(program counter)to that
interrupt vector address( which is store in the vector
table). then start execute the instruction stored in that
location...
2. About microprocessor and microcontroller?
ANS. Microprocessor can be simply considered as a cpu.
which needs additional i/o ports for communicating with the
external ROM,RAM,TIMER etc.,The main advantage of
microprocessor over microcontroller is there is no memory
constraint.we can decide the memory.
Microcontroller can be considered as a system on a chip
that is it has built in ROM,RAM,TIMER,UART likewise.
since they have internal memory the memory usage is
restricted to a maximum.it occupies less space than
microprocessor because of built in features.
3. What is the use of electronics in software company?
ANS. There are numerous Examples in favour of use of electronics
in software company but i would like to mention few most
importantusage of its.
First of all software company can give output only on
computers, which is the greatest inventory of Electronics.
Furthermore here I would like to include the network also
with help of it lots of work have been easy and even fast
also.
As far as, in today's life security is most indeed for both
company and employee the electronics provides here security
to company by employee cards and access according to their
level.
Last but not least, the revolution in telecommunication
which is also the most useful not only software companies
but for all companies and business. That is also the best
invention from electronics.
4. Why do you choose ece branch?
ANS. Because our world is filled with ELECTRONIC components and
DIGITAL circuits.To know about its operation and working I
Choosed this Branch.
5. WHAT IS THE DIFFERNECE BETWEEN THE SEMICONDUCTOR DEVICES AND POWER SEMICONDUCTOR DEVICES?
ANS. Normally semiconductor devices are meant for handling small
powers of electricity. Power semiconductor devices derived
or made from semiconductors are for handling larger powers.
Semiconductor devices includes resistors, capacitors, small
power handling transistors etc. Resistance value is NOT
dependant on the amount of power to be handled, but its
size is. Power semicondtr devices includes SCR, TRIAC etc
which are derived from semiconductors but are for handling
larger powers..
6. Why do you want to join tata consultancy services?
ANS. It is the topmost mnc company in india.
7. Why the shape of an op-amp is chosen triangular?
ANS. op amp is selected triangular in shape because it has two
terminals as inverting and noninverting and having only one
output common for both the terminal.if in case we also
provide an feedback if nessesary.if it is selected as any
other shape,it is not possible.
8. Why the input resistance of an op-amp is high whereas it's output resistance is low?
ANS. Loading at the input point and to pass the maximum output
to the load is the requirement of Op-Amp which is a current
exchange device from input side to output side.
9. Outline the working of EVM?
ANS. EVM stands for electronic voting machine.An Electronic
Voting Machine consists of two Units – a Control Unit and a
Balloting Unit – joined by a five-meter cable.
describe rest by using concept of digital& microcontroller
trchnology.
including memory addressing and refredhinh circuitry.
10. What is CMRR? Explain briefly?
ANS. CMRR is abbrevated as common mode rejetion ratio . It
is denoted as rho (p) .
the CMRR for any device should be less.
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| Author: Vidya 26 May 2008 | Member Level: Diamond Points : 2 | useful information
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