compo: n. [demoscene] Finnish-originated slang for
`competition'. Demo compos are held at a demoparty. The usual
protocol is that several groups make demos for a compo, they are
shown on a big screen, and then the party participants vote for the
best one. Prizes (from sponsors and party entrance fees) are given.
Standard compo formats include intro compos (4k or 64k demos),
music compos, graphics compos, quick demo compos (build a demo
within 4 hours for example), etc.