TestSeries

Question

Q.1) Which one of the following statement /statements is/are true on a Boolean function?

A) Minterm is a product term which contains all the variables in either complementary or uncomplimentary form.

B) Maxterm is as sum term which contains all the variables in either complementary or uncomplimentary form.

C) Minterm is a product term which contains all the variables in either complementary or uncomplimentary form, for that combination the functional output must be 1.

D) All of these.

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Q. 2) Consider the following addressing modes

1. Indirect AM     

2. Indexed AM

3. Register Direct AM.

4. Relative AM

5. Indirect Indexed AM

6. Based AM

In which of the following addressing modes, the effective address is calculated by adding the constant value to some register content?

I think it should be 2, 4, 5, 6.

But it is 2, 4 , 6.

Comments

in Indirect Indexed AM constant added to memory location ryt? question ask register content

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Q. 1) All of these

min term e.g = A'BC, maxterm e.g = A+B'+C, and minterm is always gives truth value 1.

Q. 2) It should be 2,4,6

becuase indirect indexed has vector addition. I am not getting it totally but please read the following source content

source : https://www.c64-wiki.com/wiki/Indirect-indexed_addressing

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For 1st answer is C, and 

minterm is always gives truth value 1.

What does it mean?

 For 2nd) If we are adding vector to register content, then indexed should also be false, but I think vector address is the Base address of the array, and since we know that indirect indexed AM is used for array of pointers, so for calculating address we need to add the BA to register content.

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I mean in minterm, we select only those terms which are having truth value as 1.

a b       f

0 0       1

0 1       0

1 0       1

1 1       0

then minterms are a'b' and ab'

I think option C is more precise among all that's why they have choose that option.

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@Ashwin Kulkarani Sir

1st option:

Minterm is a product term which contains    "all the variables"

in either complementary or uncomplimentary form.

It is not necessary it contain all variables after minimization some terms are dropped.Is this the correct reason To eliminate it

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Yeah, I too think same, therefore a and b options are eliminated.

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@shubhanshu @Learner, according to the context of that sentence they are saying minterms has all its terms in complimented or uncomplimentary form.

"In Boolean algebra, a product term in which each variable appears once (in either its complemented or uncomplemented form). "

 This is the Wikipedia def. They are also saying each variable.

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Whatever the definition given in the question is of Canonical Minterms. But actually, it needs not to be true in minterms.

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1) D is  correct

2) 2,4,6

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@Shubhanshu

a minterm always having all the literals  either complemet or direct way....if not then it would not  be called minterm/maxterm
 

https://www.quora.com/What-are-minterms-and-maxterms-in-digital-electronics