BackupPC is disk based and not tape based. This particularity allows features not found in any other backup solution:

this application contains every tool you would like to find when preparing math courses, exercises or their keys. Features: - symbolic calculus - tables of variations, LaTeX syntax - dynamic geometry - probability trees - graphs - function plotting - histograms, etc.

Golly simulates Conway's Game of Life with an arbitrarily large grid of cells. It can optionally use a hashlife algorithm, which allows it to rapidly compute generations for huge patterns, and to compute many generations into the future at a time.

KNetwalk is a puzzle game where the player arranges sections of wire to connect all the computers on the board.

This specification, created in 1995, describes a method of loading various multiboot kernels using a single compliant boot loader (such as GNU GRUB) on i386-based computers.