Computer Science - Digital Computer Electronics - Discussion

Discussion Forum : Digital Computer Electronics - Section 1 (Q.No. 3)
3.
Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH
63
32
16
38
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
9 comments Page 1 of 1.

Bharti said:   5 years ago
3 - 0011.
F - 1111.
H - in hexadecimal.

3F = (00111111)2 = 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*1+16*1+8*1+4*1+2*1+1*1.
= 0+0+32+16+8+4+2+1.
= 32+16+15=63.
(2)

Manish maurya said:   6 years ago
Yes, H for hexadecimal.
(1)

Sunny said:   7 years ago
H indicates value in Hexadecimal.

Ra-1 said:   7 years ago
What is H here? Explain in detail.

Ruhulpust said:   1 decade ago
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.

Saptarshi ghosh said:   1 decade ago
3Fh = 3*16+15 = 48+15 = 63.

Rubzy said:   1 decade ago
H denotes hexadecimal number system.

Keerthi said:   1 decade ago
But H also present at question then what about it?

Manoj said:   1 decade ago
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)

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