Latches and Flip Flops Interview Questions 


 

Latches and Flip Flops Interview Questions
According to todays regulators and bureaucrats, those of us who were kids in the 60's 70's and 80's probably shouldn't have survives, because
Our baby cots were covered with brightly coloured lead-based paint that was promptly chewed and licked. We had no childproof lids on medicine bottles, or latches on doors or cabinets and it was fine to play with pans. When we rode bikes, we wore no helmets, just flip flops and fluorescent "clackers" on our wheels (I think you will find they were known as spokey dokeys -some old git wrote this!)
As children, we would ride in cars with no seat belts or airbags and riding in the passenger seat was a treat. We drank from the garden hose and not from the bottle, and it tasted the same. We ate chips, bread and butter pudding and drank fizzy pop with sugar it, but we were never overweight because we were always outside playing. We shared one drink with four friends, from one bottle or can and no one ever died from this.
A LITTLE NOSTALGIA FOR US ALL FOR THOSE BORN BEFORE 1986



According to today's regulators and bureaucrats, those of us who were kids in the 60's, 70's and early 80's probably shouldn't have survived....



Because our baby cots were covered with brightly coloured lead-based paint which was promptly chewed and licked.



We had no childproof lids on medicine bottles, or latches on doors or cabinets and it was fine to play with
pans.



When we rode our bikes, we wore no helmets, just flip-flops and fluorescent

'spokey dokey's' on our wheels.



As children, we would ride in cars with no seat belts or airbags – riding in the passenger seat was a treat.



We drank water from the garden hose and not from a bottle and it tasted the same.



We ate chips, bread and butter pudding and drank fizzy juice with sugar in it, but we were never overweight because we were always outside playing.



We shared one drink with four friends, from one bottle or can and no-one actually died from this.



We would spend hours building go-carts out of scraps
and then went top speed down the hill, only to find out we forgot the brakes. After running into stinging nettles a few times, we learned to solve the problem.



We would leave home in the morning and could play all day, as long as we were back before it got dark. No one was able to reach us and no one
minded.



We did not have Play stations or X-Boxes, no video games at all. No 99 channels on TV, no videotape movies, no surround sound, no mobile phones, no personal computers, no DVDs, no Internet chat rooms.



We had friends - we went outside and found them.



We played elastics and rounders, and sometimes that ball really hurt!



We fell out of trees, got cut, and broke bones but there were no law suits.



We had full on fist fights but no prosecution followed from other parents.



We played knock-the-door-run-away and were actually afraid of the owners catching us.



We walked to friends' homes.



We also, believe it or not, WALKED to school; we didn't rely on mummy or daddy to drive us to school, which was just round the corner.



We made up games with sticks and tennis balls.



We rode bikes in packs of 7 and wore our coats by only the hood.



The idea of a parent bailing us out if we broke a law was unheard of...they actually sided with the law.



This generation has produced some of the best risk-takers and problem solvers and inventors, ever. The past 50 years have been an explosion of innovation and new ideas. We had freedom, failure, success and responsibility, and we learned how to deal with it all. And you're one of them. Congratulations! Pass this on to others who have had the luck to grow as real kids, before lawyers and government regulated our lives, for our own good.



For those of you who aren't old enough, thought you might like to read about us. This my friends, is surprisingly frightening......and it might put a smile on your face: The majority of students in universities today were born in 1986........they are called youth.



They have never heard of We are the World, We are the children, and the

Uptown Girl they know is by Westlife not Billy Joel. They have never heard of Rick Astley, Bananarama, Nena Cherry or Belinda Carlisle.



For them, there has always been only one Germany and one Vietnam.



Michael Jackson has always been white.



To them John Travolta has always been round in shape and they can't imagine how this fat guy could be a god of dance.



They believe that Charlie's Angels and Mission Impossible are films from last year.



They can never imagine life before computers.



They'll never have pretended to be the A-Team, Red Hand Gang or the Famous Five.



They'll never have applied to be on Jim'll Fix It or Why Don't You?



They can't believe a black and white television ever existed. And they will never understand how we could leave the house without a mobile phone.



Now let's check if we're getting old...



1. You understand what was written above and you smile.

2. You need to sleep more, usually until the afternoon, after a night out.

3. Your friends are getting married/already married.

4. You are always surprised to see small children playing comfortably with computers.

5. When you see teenagers with mobile phones, you shake your head.

6. You remember watching Dirty Den in EastEnders the first time around.

7. You meet your friends from time to time, talking about the Good Old

Days, repeating again all the funny things you have experienced together.

8. Having read this mail, you are thinking of forwarding it to some other friends because you think they will like it too...



Yes, you're getting old!!
According to today's regulators and bureaucrats, those of us who were kids
in the 50's, 60's, and 70's probably shouldn't have survived,
because...
Our baby cots were covered with brightly coloured lead-based paint which was
promptly chewed and licked.

We had no childproof lids on medicine bottles, or latches on doors or
cabinets and it was fine to play with pans.

When we rode our bikes, we wore no helmets, just flip flops and fluorescent
'clackers' on our wheels.

As children, we would ride in cars with no seat belts or airbags. Riding in
the passenger seat was a treat.

We drank water from the garden hose and not from a bottle -
tasted the same.

We ate dripping sandwiches, bread and butter pudding and drank fizzy pop
with sugar in it, but we were never overweight because we were always
outside playing.

We shared one drink with four friends, from one bottle or can and no one
actually died from this.

We would spend hours building go-carts out of scraps and then went top speed
down the hill, only to find out we forgot the brakes. After running into
stinging nettles a few times, we learned to solve the problem.

We would leave home in the morning and play all day, as long as we were back
before it got dark. No one was able to reach us all day and no
one minded.

We did not have Playstations or X-Boxes, no video games at all. No 99
channels on TV, no videotape movies, no surround sound, no mobile phones, no
personal computers, no Internet chat rooms. We had friends – we went outside
and found them.

We played elastics and street rounders, and sometimes that ball
really hurt.

We fell out of trees, got cut and broke bones and teeth, and there were no
lawsuits. They were accidents. We learnt not to do the sam ething again.

We had fights, punched each other hard and got black and blue -we learned
to get over it.

We walked to friend's homes.

We made up games with sticks and tennis balls and ate live stuff, and
although we were told it would happen, we did not have very many eyes out,
nor did the live stuff live inside us forever.

We rode bikes in packs of 7 and wore our coats by only the hood.
Our actions were our own. Consequences were expected.

The idea of a parent bailing us out if we broke a law was
unheard of. They actually sided with the law. Imagine that!

This generation has produced some of the best risk-takers and problem
solvers and inventors, ever. The past 50 years have been an explosion of
innovation and new ideas. We had freedom, failure, success and
responsibility, and we learned how to deal with it all.

And you're one of them. Congratulations!

Pass this on to others who have had the luck to grow up as real kids,
before lawyers and government regulated our lives, for our own good.
(If you aren't old enough, thought you might like to read about
us).
According to today’s regulators & bureaucrats, we kids of the 70s and early 80s
probably shouldn’t be alive today:

1. Our baby cots were covered with brightly coloured lead-based paint which we promptly chewed and licked off.
2. We had no childproof lids on medicine bottles, or latches on doors or cabinets and it was fine to play with pans.
3. When we rode our bikes we wore no helmets, just flip flops and fluorescent spokey dokey’s on our wheels.
4. We would ride in cars with no seatbelts or airbags and sitting in the front was a treat.
5. We drank water from puddles and garden hoses, not from a bottle – and it tasted the same.
6. We ate chips, sweets, drank fizzy juice with sugar in it but we were never fat because we were outside playing.
7. We shared one drink with 4 friends, drinking from the same bottle, and no-one actually died from this.
8. We spent hours building go carts out of scraps and then went top speed down the hill, only to find we forgot the brakes.
According to today's regulators and bureaucrats, those of us who were kids
In the 60's, 70's and early 80's probably shouldn't have survived, because ...
Our baby cots were covered with brightly coloured lead-based paint which
Was promptly chewed and licked.
We had no childproof lids on medicine bottles, or latches on doors or
cabinets and it was fine to play with pans.
When we rode our bikes, we wore no helmets, just flip flops and fluorescent
clackers' on our wheels. (I think you will find they were known as spokey
dokeys - some old git wrote this)
As children, we would ride in cars with no seat belts or airbags and riding
in the passenger seat was a treat.
We drank water from the garden hose and not from a bottle and it tasted the
same.
We ate chips, bread and butter pudding and drank fizzy pop with Sugar in
it,
but we were never overweight because we were always outside playing.
We shared one drink with four friends, from one bottle or can and no-one
actually died from this.
We would spend hours building go-carts out of scraps and then went top
speed
down the hill, only to find out we forgot the brakes. After running into
stinging nettles a few times, we learned to solve the problem.
We would leave home in the morning and could play all day, as long as we
Were back before it got dark. No one was able to reach us and no one minded.
We did not have Play stations or X-Boxes, no video games at all.
No 99 channels on TV, no videotape movies, no surround sound, no mobile
phones, no personal computers, no Internet chat rooms.
We had friends, we went outside and found them.
We played elastics and street rounders, and sometimes that ball really
hurt.
We fell out of trees, got cut and broke bones but there were no lawsuits.
We had full on fist fights but no prosecution followed from other parents.
We played knock-down-ginger and were afraid of the owners catching us.
We walked to friend's homes.
We also, believe it or not, WALKED to school; we didn't rely on mummy or
daddy to drive us to school, which was just round the corner.
We made up games with sticks and tennis balls.
We rode bikes in packs of 7 and wore our coats by only the hood.
The idea of a parent bailing us out if we broke a law was unheard of. They
actually sided with the law.
This generation has produced some of the best risk-takers and problem
solvers and inventors, ever. The past 50 years have been an explosion of
innovation and new ideas.
We had freedom, failure, success and responsibility, and we learned how to
deal with it all.
And if you're one of them. Congratulations!
According to today's regulators and bereaucrats, those of us who were kids in the 50's, 60's and 70's shouldn't have survived, because...

Our cots were covered with brightly coloured lead-based paint which was chewed and licked.
We had no childproof lids on medicine bottles or latches on doors on cabinets and it was fine to play with pans.

When we rode our bikes, we wore no helmets just flip-flops and fluorescent 'clackers' on our wheels.

As kids we would ride in cars with no seat belts or air bags. Riding in the front was a treat.

We shared 1 drink with 4 friends, from 1 bottle or can and no 1 actually died from this.

We drank water from the garden hose and not from a bottle - it tasted the same.

We did not have Play stations or X-Boxes, no video games at all, no 99 channels on TV, no videotape movies, no surround sound, no mobile phones, no personel computers, no Internet chat rooms. We had friends - we went outside and found them.

There's a lot more...Toe.
According to today's regulators and bureaucrats, those of us who were kids
in the 60's, 70's and early 80's probably shouldn't have survived....

Because our baby cots were covered with brightly coloured lead-based paint
which was promptly chewed and licked.

We had no childproof lids on medicine bottles, or latches on doors or
cabinets and it was fine to play with pans.

When we rode our bikes, we wore no helmets, just flip-flops and
fluorescent 'spokey dokey's' on our wheels.

As children, we would ride in cars with no seat belts or airbags - riding
in the passenger seat was a treat.

We drank water from the garden hose and not from a bottle and it tasted
the same.

We ate chips, bread and butter pudding and drank fizzy juice with sugar in
it, but we were never overweight because we were always outside playing.

We shared one drink with four friends, from one bottle or can and no-one
actually died from this.

We would spend hours building go-carts out of scraps and then went top
speed down the hill, only to find out we forgot the brakes.

After running into stinging nettles a few times, we learned to solve the
problem.

We would leave home in the morning and could play all day, as long as we
were back before it got dark. No one was able to reach us and no one
minded.

We did not have Play stations or X-Boxes, no video games at all.

No 99 channels on TV, no videotape movies, no surround sound, no mobile
phones, no personal computers, no DVDs, no Internet chat rooms.

We had friends - we went outside and found them.

We played elastics and rounders, and sometimes that ball really hurt!

We fell out of trees, got cut, and broke bones but there were no law suits.

We had full on fist fights but no prosecution followed from other parents.

We played knock-the-door-run-away and were actually afraid of the owners
catching us.

We walked to friends' homes.

We also, believe it or not, WALKED to school; we didn't rely on mummy or
daddy to drive us to school, which was just round the corner.

We made up games with sticks and tennis balls.

We rode bikes in packs of 7 and wore our coats by only the hood.

The idea of a parent bailing us out if we broke a law was unheard of...they
actually sided with the law.

This generation has produced some of the best risk-takers and problem
solvers and inventors, ever. The past 50 years have been an explosion of
innovation and new ideas. We had freedom, failure, success and
responsibility, and we learned how to deal with it all, those of us who
have had the luck to grow as real kids, before lawyers and government
regulated our lives, for our own good.

The majority of students in universities today were born in
1986........they are called youth.

They have never heard of We are the World, We are the Children, and the
Uptown Girl they know is by Westlife not Billy Joel. They have never heard
of Rick Astley, Bananarama, Nena Cherry or Belinda Carlisle.

To them John Travolta has always been round in shape and they can't imagine
how this fat guy could be a god of dance. They believe that Charlie's Angels
and Mission Impossible are films from last year.

They can never imagine life before computers. They'll never have pretended
to be the A-Team, Red Hand Gang or The Famous Five. They'll never have
applied to be on Jim'll Fix It or Why Don't You?

They can't believe a black and white television ever existed. And they will
never understand how we could leave the house without a mobile phone.

For them, there has always been only one Germany and one Vietnam.

And Michael Jackson has always been white
1. give the truth table for a NAND latch and compare it with that for the S-R FF. How does it differ and why?
2.For a S-R edge trigged flip-flop the Q output is connected to RESET and Q' is connected to the SET input. Determine the output from Q when a clock signal is a pplied to the CLK input.
3. Show how a aNAND latch could be modified to operate as an S-R flip-flop(active high inputs)
Question 1:
Construct a SR latch from
1) two NAND gates.
2) two NOR gates
3)Also construct SR Latch with a control input.
Give the function table for each and a brief description of its working (max. 3 lines) for each.
Question 2: What is the difference between
1) S-R Latch
2) Gated S-R Latch
3) D Latch
4) Edge-Triggered Latch
5) J-K flip flop
Write maximum only 2-3 lines against each.
Do you guys/girls know of any website that offers tutorials on how to create either 3 JK flip flops or 6 D latches in VHDL? I've already tried google...thanks in advance :-D
The neo-conservatives deliberately choose a dumba.ss redneck sounding fool to represent them publically. Bush uses small words they can understand and repeats buzzwords like "flip-flop" over and over again that they can latch on to. That way the extra-stupid idiots who can't formulate an original thought don't have to remember whole sentences or complete ideas--- they can just repeat the catchphrases like drunken fans at a football game. "Flip-flop" "Cut-and-run" "Flip-flop"

Ever notice that Democrats and others don't rely on those tactics? Thats because it insults the intelligence of anyone with an IQ over 90 who expects a real explaination and a comprehensive understanding of issues instead of predigested sound bytes.
I had a minor accident... I rammed my toe into a chair over the weekend, which broke the nail in the middle. It hurt & bled that day & was kinda sore the next. It felt fine the day after, so no problem I was hoping. However after ramming it hard again (cuz it's kinda hard not to), it affected the rest that was still attached. Now the whole nail is sticking straight up, like a bloody puppet (literally)! It's not bleeding too badly now, just drains if I walk on it too much. Needless to say it looks gross, it's kind of embarrassing, uncomfortable to put pants on, & I can only wear flip flops with latches that I can swing open. If I press down on the it, it's very sore. I'm trying to keep it clean, putting peroxide, neosporin, etc. But I don't even know how I should cover it cuz I put gauze on it yesterday, only for it to get stuck! What should I do, wait for it to fall off, or is there a way to expedite the time to fall off? How long to grow back, risk of infection, etc? Help
log 0=?
log (infinity)=?
log (-infinity)=?
ln 0=?
ln (infinity)=?
ln(-infinity)=?
sin (infinity)=?
sin(-infinity)=?
cos(infinity)=?
then finally (PLEASE TRY TO ANSWER THIS)
1.wht is attenuation of a frequency response curve?
2.how do you define latch in digital electronics?
3.can you give four difference between latch and flip flops?
Right this is an electronics question and i`m new to this but am developing a computer controlled stepper motor drive system .(had some old printers for parts) and I had this idea to make a plugable system so expansion could become easier as my interest grows and uses are found. The idea is to use latching ics like the jk flip flop to collect data from the bus and set the busy signal until the stepper has done its bit and is ready to move again. This would allow the p.c. to do something more interesting instead while the real world does it`s thing. so the real question is how as all the books i've read dont cover this form of application for that i.c.(or do but i'm not smart enough to realise). so a circuit diagram would be groovy but a very good description may well surfice.

look forward to hearing from you soon bye
With a D-latch, the logic state on the D input is transferred to the Q output when a clock pulse is applied to the C input.

In common usage, a D-flip flop is a particular case of a D-latch where the Not-Q output is connected back to its own D input, so that the Q output changes state on each clock pulse.
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