It's important for everyone who wants to learn how to use Redstone in Minecraft to build as much as they can from templates and, of course, their imaginations. But! For those of us with larger projects in mind, it might help to have something quick on hand just to pop in there and wire up.
I'm hoping that we can build a repository of generic built prefabs that we can all stick together to make some really cool stuff. Here - I've built (and mostly labeled) a few things that may possibly prove useful for anyone interested. I've tried to make these as compact, but also as user friendly as possible so that wiring it to your own project can be simple.
The following downloads are all in McEdit Schematic format.
8x8 display with 64-bit memory.
Why? How the hell should I know, I just build the things... Each pixel on the display is mapped to a bit of memory in the tower. Map to stored ROM images?
"Compact" 7 segment display
Here is a 7 segment display with no need for an octopus of wires hanging out of it.
3 bit binary to decimal (0-7) converter with power rails
This is the 3-bit Binary to Decimal (0-7) converter from the Minecraft Wiki with the addition of pre-built power rails. Just plug your project in to the 3 inputs and watch it go!
Triple digit display with 10 bit input (0-9) for each display
Three floors with 10 inputs each for each display with only 1 block of space between displays.
8 bit memory module
8 bits of memory with a single stage reset and individual inputs/outputs per-bit. Outputs are parallel.
I'll probably throw together 16, 32 and maybe even 64-bit memory modules to throw up here too. I'll add stuff as I go along too. Enjoy!