The R2C was the color version of the 2nd Z80-based microcomputer

Microcomputer

A microcomputer is a computer with a microprocessor as its central processing unit. They are physically small compared to mainframe and minicomputers...

 produced by Regency Systems of Champaign, Illinois

Champaign, Illinois

Champaign is a city in Champaign County, Illinois, in the United States. The city is located south of Chicago, west of Indianapolis, Indiana, and 178 miles northeast of St. Louis, Missouri. Though surrounded by farm communities, Champaign is notable for sharing the campus of the University of...

, the first being the RC1. The RC1 had a high resolution display and dual 8-inch floppy drives. It was essentially a standalone PLATO environment, adapting the TUTOR language and environment. The company was founded by David Eades, a real-estate agency owner, and Paul Tenczar, creator of the TUTOR language.

The R2C supported an Ethernet

Ethernet

Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....

 network and a hard drive. The introduction of the IBM AT, with 16-bit

16-bit

-16-bit architecture:The HP BPC, introduced in 1975, was the world's first 16-bit microprocessor. Prominent 16-bit processors include the PDP-11, Intel 8086, Intel 80286 and the WDC 65C816. The Intel 8088 was program-compatible with the Intel 8086, and was 16-bit in that its registers were 16...

processor, hard drive, and EGA display, sparked a change in direction for the company away from hardware.