This article is from the Pratchett Newsgroups FAQ, by Orin Thomas email@example.com with numerous contributions by others.
Terry's house is probably similar to the computer version of an Elephant's
graveyard. Many relics stored around the place. The house has a network.
He is currently using a Pentium II with Word Perfect for Windows. Although, in
a concession to tradition, he has Word Perfect set up to run like Word
Perfect 4.2 for DOS :-)
He also used to own an Amstrad, and is a fan of the classic isometric
perspective games, Batman and Head Over Heels, as well as being a
ZX-81 maniac. He is a declared fan of the Wing Commander series and
also is quite fond of the game Doom. Future historians of computer
science will probably look upon his extensive collection with awe.
I don't know what he is playing at the moment but it probably involves
lots of explosions ... Rabbits probably figure prominently as well ...
and don't get him started about that 2 speed hedge trimmer!
According to dejanews the group which he posts to the 3rd most
is alt.games.tombraider so he *probably* plays that as well.
Think of it this way - if you were a technophile like him and had
the oppertunity to get all the kit you wanted - wouldn't you make
sure that you were bleeding edge?