The 4004 was the first commercially-produced microprocessor, or CPU. It was an enormous technical achievement for Intel, and the design team, which was led by Federico Faggin, broke new ground in ...

The DDL-4 is a project to build a modular 4-bit CPU using bitslice methods. This is where computations are broken down into simple operations with two-bit inputs, which are executed with basic ...

Posted in Retrocomputing Tagged 4-bit CPU, digital, discrete, KiCAD, retro, risc, ttl ← Create A Compiler Step-By-Step Bicycle Gets Turn Signals And Brake Lights For Added Safety → ...

Most notable was AMD's 2900 family of integrated circuits used in CPUs from Digital and others, which included the Am2901 4-bit slice ALU. See ALU. THIS DEFINITION IS FOR PERSONAL USE ONLY.

Very, very, very, very slowly, is the answer. Indeed, booting up Linux took 4.76 days, and as Tom’s notes, even carrying out a directory listing command took the aged CPU some 16 hours – ouch.

Until this time, Pentium 4 CPUs had maintained the 20-stage pipeline, but then came Prescott with its 31 stages, fabricated on a 90nm process, and clock speeds of up to 3.8GHz.

Unlike the identified sweet-spotregions, the various processor bit widthsdo not map mutually exclusively to specificprocessor architectures (Figure 2 ).Notably, however, 4- and 8-bit processorsfall ...

Yes, over half a century ago now, the Intel 4004 appeared in all its 4-bit glory (with its successor being the Intel 8080, later leading to the famous 8086 processor, ushering in the x86 era).