Thanks for the feedback on #204, the logo would probably lose some of its definition when reproduced in 1 or 2 colours.
Taking those comments on board I have tried to focus on a logo that can be reproduced in a single colour whilst still looking good in full colour.
The dot matrix effect on #218 & #219 gives that computerised feel along with 2 variations of font, #219
is a font that is used in some coding applications.
Hope this all makes sense!
:)