Dynabyte computers are all business inside and out

This is a nice advert for Dynabyte showing various models in its DB series of microcomputers.

The middle box is the company's DB 8/1 microcomputer - a 4MHz Z-80 CPU with one parallel and two serial ports, 4K ROM and up to 32K RAM.

[extra: mike_watts_kilobaud_jun78|Mike Watts, president of Dynabyte, with the company's new Shugart floppy system at the 2nd West Coast Computer Faire in San Jose. From Kilobaud Magazine, June 1978|400|right]Surrounding it are two different floppy-disk units. The top one - DB 8/2 - contained two Shugart 5¼" floppies drives which supported the dual-sided dual-density (DSDD) format giving 1.2MB of storage. 

The bottom unit - the DB 8/4 - contained two older 8" floppies, for 2MB storage. 

The 5¼" 'minifloppy' unit - Shugart's trademarked name for the reltively new smaller floppy disk format - was possibly launched at the Second West Coast Computer Faire, held at San Jose in March 1978.

The advert also - unusually - acknowledges that there was actually a computer market outside the US, with its mention of an option for "European [electrical] power".