Second scenario right there very well, and the signals are useful, right?
So you have design went off a system where they just knew this, as you well know.
And then we have a duty to write down in between, right?
So in between, you have this condition, right?
So if you considered duty one.
OK, so when you write an entity, you declare a b c d later.
The two input ports are already declaring an entity, and CND is also declared in an entity which represent
an output system.
So this is our system.
OK.
So when we consider an entity of a system, we declare E B C and but McGill be finding we have subsystem
one that is due d one and subsystem three, which is due to an in between.
And in between, we have units which are not defined in the name, right?
So we could clearly see IB CDs defined, but this two nets OK, one and two is not defined in an integer,
right?
So the second usage of the signal is to define.
Undefined.
Next.
OK, so this is the second usage that we have.
For an undefined right, so these are the two primary uses that you you would easily understand, OK,
that give us a motivation to understand, signal and ready, but right now, signal a variable will
have the.
D-Day, depending on what we specify, right, so the evil you required and specify the type for both
signal and variable and then only a good process.
So two of the usage of signal and variable that you would keep in the mind, at least for this section,
OK will be first to re-use any value.
Right.
So if you want to use any of value, then you need to use signal a lot, even if you want to have a
temporary, OK temporary variable for storage.
OK.
Then also, you could either proceed with Signal already, but the third import and usage of the signal
and variable is to define and define it.
This is the third usage of.
Signal already, but the important point to remember is the signal signal have a global scope.
OK.
While, well, very are local to the process rates, they have a local scope and which is restricted
to the specific process and.
In which we have declared.
Right.
So these are the four.
Important point to remember.
In fact, the D-type that signal and variability.
Depends on how what do their abuser have assigned them right away, like letting cigarette video of
it that we need to specify that iPods?
Right?
So let me just proceed and try to cover some of the fundamental of signal and video.
But now, in fact, will not be going into detail of each of this because as we progress to the modeling
state there, we will be frequently utilizing them.
So much of the things will be clear when we build up an actual systems.
So here our agenda will be just to get.
What view of a signal line, believe it, so that as we progress further in the marketing say, things
will be much easier for Mr.
Right.
So we frequently require them.
So instead of proceeding to the modeling, say we are first discussing them and then we will proceed
to modeling state.