Computer Science - Digital Computer Electronics - Discussion

3. 

Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH

[A]. 63
[B]. 32
[C]. 16
[D]. 38
[E]. None of the above

Answer: Option A

Explanation:

No answer description available for this question.

Manoj said: (Oct 3, 2011)  
3fh means 3f in hexadecimal... so its conversion in decimal can b done as 3*16^1 + 15 = 63 (15 bcoz f= 15 in hexadecimal)

Keerthi said: (Oct 7, 2013)  
But H also present at question then what about it?

Rubzy said: (Nov 13, 2013)  
H denotes hexadecimal number system.

Saptarshi Ghosh said: (Dec 3, 2013)  
3Fh = 3*16+15 = 48+15 = 63.

Ruhulpust said: (Jan 24, 2014)  
Decimal equivalent of 3FH = 00111111 where 0011 for 3 & 1111 for F
Now follow this binary rules.

00111111.
=> 2^7*0+2^6*0+2^5*1+2^4*1+2^3*1+2^2*1+2^1*1+2^0*1.
=> 0+0+32+16+8+4+2+1.
=> 63.

Ra-1 said: (Jul 21, 2017)  
What is H here? Explain in detail.

Sunny said: (Jul 27, 2017)  
H indicates value in Hexadecimal.

Manish Maurya said: (Oct 31, 2018)  
Yes, H for hexadecimal.

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