IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Miscellaneous => Topic started by: Dasith on May 09, 2011, 03:43:00 am

Title: Parity blocks-computing
Post by: Dasith on May 09, 2011, 03:43:00 am: Can someone explain the use , & how parity is calculated in a block of data + how parity is calculated in parallel parity ?
Title: Re: Parity blocks-computing
Post by: Arthur Bon Zavi on May 11, 2011, 08:09:51 am: Quote from: Dasith on May 09, 2011, 03:43:00 am
Can someone explain the use , & how parity is calculated in a block of data + how parity is calculated in parallel parity ?

Just need to remember how a parity works in detecting error in transmission, nothing else for AS.
Title: Re: Parity blocks-computing
Post by: Dasith on May 11, 2011, 08:23:53 am: hmm , dont u knw dat parity block is a new addition to the sylabus ,check the syllabus :O
Title: Re: Parity blocks-computing
Post by: Arthur Bon Zavi on May 11, 2011, 01:49:59 pm: Quote from: Dasith on May 11, 2011, 08:23:53 am
hmm , dont u knw dat parity block is a new addition to the sylabus ,check the syllabus :O

You check it. :P

I already checked. Only we should know the use of parity check because of parity bit(s).
Title: Re: Parity blocks-computing
Post by: Dasith on May 11, 2011, 01:53:59 pm: check 1.5 Data transmission and networking

e)
recognise that errors can occur in data transmission; explain the use of parity checks, echoing and
check sums in detecting and correcting these errors, and the use of parity blocks to aid self checking
Title: Re: Parity blocks-computing
Post by: Master_Key on May 11, 2011, 02:08:53 pm: http://sites.google.com/site/computing9691/Home/notes-distribution

Download 1.5. Data Transmission and Networking (updated).
Title: Re: Parity blocks-computing
Post by: Dasith on May 11, 2011, 02:23:49 pm: thanx master key !! :D
but i already hav dat !!

they dont give much details about parity blocks
its as if the part is copied and pasted on that text about parity blocks in 1.5 :o
Title: Re: Parity blocks-computing
Post by: Master_Key on May 11, 2011, 02:27:33 pm: Quote from: Dasith on May 11, 2011, 02:23:49 pm
thanx master key !! :D
but i already hav dat !!

they dont give much details about parity blocks
its as if the part is copied and pasted on that text about parity blocks in 1.5 :o
Read A Level Computing.

It says about even parity and odd parity checks. Parity bit is before MSB. ;)