Tuesday, September 21, 2010

COMP6021 Class 02

We recapped our discussions on ASCII.

We talked a little a bit about Unicode. Although you can buy whole books on Unicode, conceptually it is just the mother of all tables. More at Wikipedia or Unicode.org.

We played hangman to illustrate that letter occur with different frequencies. We talked about Variable Length Codes and Huffman coding, but not in detail.

Out of class work:
Watch the online class on Hufmann coding.
Count up the character frequencies of your last 10ish text messages and enter them into this spreadsheet. E-mail it back to Colin when done.

1 comment:

hugh said...

http://www.youtube.com/watch?v=0PahtaFK640

also helpful