Whatās it all about?
Welcome to my public notepad, currently featuring over 190+ posts. The tag-cloud on the left should give you an idea about the main topics being covered on GeekDot.
For a start, thatāsĀ Transputers, exotic accelerators using theĀ i860,Ā MIPS,Ā m88kĀ CPUs or complete systems like the rareĀ SIEMENS PC-X and the heroes of my youth: Things related to Homecomputers like the the C64, Apple II, ATARI ST or early Macs ⦠plus many tips, tricks, how-toās or fundamental know-how articles.
Or check out my once-in-a-while rants inĀ my Blog. Here are the latest 3 posts:
Background
It began as a simple notepad for myself ā just to have a central place to put all my notes about the numerous projects Iām working on⦠suffering from severe āproject ADHDā they run mostly in parallel but often with pauses over several months. When returning to a stalled project I had to admit that Iāve forgotten half of the things Iāve discovered last time working on it.
Why these pages?Ā Iām a total hardware geek. IĀ LOVEĀ hardware⦠if itāsĀ real menās hardware. RealĀ what?! Real menās hardware is something which nearly isnāt build anymore⦠here are Axels laws defining real menās hardware:
- Itās big ā go away with those tiny, fiddly things like mobile phones, iPodsānāstuff. So when Iām talking about an [E]ISA expansion board itās at least half-size (~6,5ā³).
- It was fu**ing expensive when new. No hobbyist could afford it back then. Now you can!
- It has at least one CPU. The more, the better.Ā CPU, not some specialized ASIC. This point might have its roots in the fact that I also collect CPUsĀ
- It offers you some ways of improvement. i.e. not completely build with SMD parts.
- It does not need to be exceptionally ingenious, well designed or good looking. If it does, we have a perfect 10⦠if it only meets the first 4 points, thatās still OK.
- Blinking LEDs will give extra points!Ā
But owning is just one part of the fun. The real (manās) task starts with getting those old beasts to work again. Most of the time thereās no documentation, no drivers and even those nice people who developed these things -if you are able to find them- canāt really remember how the devices used to work and threw everything which could help in the trash years ago.
So itās time for reverse engineering with all its glory⦠I call itĀ Hardware Archaeology. [Humming the Indiana Jones theme]








