4-bit

With the 4-bit register, we wrote four bits simultaneously by unlocking the four state rods, pushing them, and locking them again.

Rod Logic Memory « The Half-Baked Maker 2009

There is still a slight problem with this design, which will be become apparent when we look at a 4-bit register based on this memory cell design:

Rod Logic Memory « The Half-Baked Maker 2009

A full adder circuit might appear after say 32,000 steps; and 2-, 3-, and 4-bit adders fairly quickly after that.

The Nature of Technology W. Brain Arthur 2009

We found that after sufficient time, the system evolved quite complicated circuits: an 8-way-Exclusive OR, 8-way AND, 4-bit Equals, among other logic functions.

The Nature of Technology W. Brain Arthur 2009

They would like to have circuits that could perform AND operations, Exclusive-ORs, 3-bit addition, 4-bit EQUALS, and the like.

The Nature of Technology W. Brain Arthur 2009

It was a 4-bit system that ran games off of a cassette.

Eli Achieves Sentience | Live Granades 2009

Hamming codes will let you do this by splitting the 8-bit bytes into two 4-bit nibbles and applying the standard 7,4 Hamming code to turn them into two 7-bit messages, for a total expansion of each 8-bit byte into 14 bits.

Snell-Pym » Error correcting codes 2008

To me it's more like 4-bit than 8-bit, the graphics can't really be compared to beautiful graphic games like Sonic the Hedgehog on the Master System or, say, Kirby on the NES, but it's maybe also the point to toy with the visual language of old-school videogames.

Flying Pizza Kitty « Drawn! The Illustration and Cartooning Blog 2008

Windows is a 32-bit extension to a 16-bit graphical shell for an 8-bit operating system originally coded for a 4-bit microprocessor by a 2-bit company that can't stand 1 bit of competition.

Rocket Jones: Tagline Archive Archives 2003

Peets gives this saddle-tinted longhorn a 4-bit piece, an 'he tells this yarn.

Wolfville Nights Alfred Henry Lewis 1885