Wondering if this is necessary to know (1 Viewer)

[Winston]

Hey to the members and Sam if you're reading this post, i've seen quite a few questions in reference to BCD, Binary Coded Decimal, i couldn't find it in your text book but i finally found it in the Excel one, just wondering is it actually important to know, because the explanation in the excel text book was brief, but im not sure if it's enough like, it said in BCD each decimal number is represented in 4 bits, and this isn't good because it takes up more room etc... which i can see is true, but just wanted to know anything else about it do we need to know.

Thanks.

 

[chris42]

I've actually never heard about it oops.. I don't remember I teacher mentioning it, So I assume we don't need to know it that well. What does everyone else thing though ?

 

[Winston]

Originally posted by chris42
I've actually never heard about it oops.. I don't remember I teacher mentioning it, So I assume we don't need to know it that well. What does everyone else thing though ?

i've seen past questions on it though.

 

[chris42]

Originally posted by Winston
i've seen past questions on it though.

Where from, trial HSC or past HSC papers?

 

[-X-]

Is the BCD the fixed point notation or something?

 

[Winston]

Originally posted by -X-
Is the BCD the fixed point notation or something?

nope

BCD is where each decimal individual takes up a total of 4 bits

so say the number 1422

each number is individually 4 bits instead of in normal binary where the actual number is joined up.

 

[-X-]

hmm...havent heard of that one.

 

[~Perfection]

yeh, only briefly though
bits and bytes (8?)

 

[SamD]

BCD is not in the syllabus, I think it was in the old 2Unit or 3Unit course so maybe it was an exam for one of those courses where it was seen. As Winston said you just code each digit using 4 bits so...

1395 would be coded in BCD as

0001 0011 1001 0101

Sam

 

[fatmuscle]

can't hurt learning it

 

[Winston]

Originally posted by fatmuscle
can't hurt learning it

true that i fink ive learn the whole other option topic lol

now i can choose between both in the exam