Public Key Cryptography: Diffie-Hellman Key Exchange. jQuery. Skrollr - parallax scrolling for the masses. Twisted Documentation: The Basics of Data Compression. In earlier days, computers were small and conserving space in memory or on a disk drive was always a premium.
The computer I am using now has over 1 million times the memory of my first PC that I bought in 1983, and the new 80 gigabyte disk holds 4000 times the amount of data. The first computer also cost a lot more.