# Computer Science - Digital Computer Electronics - Discussion

### Discussion :: Digital Computer Electronics - Section 1 (Q.No.3)

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

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.