Lesson 18: Cost Criteria

In this lesson, we will define a criteria for measuring the "cost" of our digital circuits.

[@aniruddhamukherjee3612]

This was incredibly helpful. Kudos for being concise and straight-to-the-point.

[@moidqureshi3075]

Sound is painfully low.

[@Facelessharbour]

you Just saved my semester ... thank you

[@artfrasik4346]

Wouldn't you count the ANDs as Terms?

[@abdallaelazaly8117]

The number of terms " gates " should be 3 not 2 !!!
2 and gates + 1 or gate = 3 gates

[@mohansaiteki8012]

its not about the no of gate. It's all about no of inputs your giving to gates
Example : AB+BC
1) you use one AND gate to A,B
2) another AND gate to BC
3) output of these gates are given to One or gate.
So, AND 1 takes (2 inputs ) & AND 2 takes ( 2 inputs ) and OR gate takes (2 inputs or output of AND gates ) . So answer is two

[@htxdy]

@@mohansaiteki8012 lets say you have this function F(A,B,C) = A, what is the cost?

[@kirankumar5868]

@@htxdy Free of cost

thanks a lot xD

[@melonsfive4815]

Question. This cost criteria is for... cost of what??
propagation delay time? cost to buy circuitary parts? or visual complexity?
I want know what this is for.

[@artfrasik4346]

All of the above. Saves time, and more importantly SPACE

[@Romo2055]

I know its been 7 years but for future sake; its more of an abstract idea of cost efficiency. you want to minimise number of gates / number of variables etc when creating a circuit. so this just lets us compare relative to other designs which circuit is more or less more efficient in terms of time, cost of manufacturing etc.

[@ghulamalimohtaj588]

it was useful thanks

[@johnwu7166]

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