Apparat, Inc., was an American software developer, peripheral manufacturer, mail order company, and retailer active from 1978 to 1988 and primarily based in Denver, Colorado.

[2] Lauletta was also a founding member of the Denver 6502 Group, a very early computer club dedicated to systems running MOS Technology's 6502 processor (unlike the TRS-80, which was based on Zilog's Z80).

[4] Apparat eventually became a value-added reseller of entire TRS-80 systems, outfitting them with enhanced Tandon floppy disk drives and more RAM.

[5]: 398  After two years of semi-public beta testing, the operating system was formally released as NewDos/80 in 1980, the name christened by Dick Miller, Apparat's East Coast distributor.

"[11]: 19 Tandy were displeased with the popularity of NewDos/80, perceiving the software as infringing their copyrights to TRSDOS, and lodged cease and desist letters at Apparat's front desk.

[15]: 107  The company resold entire IBM PCs and peripherals for the system through their mail-order catalog and introducing their own bespoke hard disk drive product for the PC in 1983.

[1][15]: 103  Apparat's Hard Disk Subsystem received high marks in the technology press of the time and was featured on the front cover of PC Magazine in 1984.