Found a great Web site with all kinds of old computers, see http://oldcomputers.net/. Here is a list of all the old computers had owned and still love:
I used to write games in assembler for the Sinclairs. One game for the ZX Spectrum still runs as a Java Applet on my web site (http://www.toedter.com/en/delon/mazeofdelon.html).
I always have nostalgic feelings when I remember all the fun a had with the above old computers.
Which old computers did you own?