Timeline of products

* 1968: Imlac founded. Their business plan was interactive graphics terminals for stock exchange traders, which did not happen.
* 1969: PDS-1 introduced for the general graphics market. First units delivered late that year.
* 1970: PDS-2 introduced. It consolidated all of the PDS-1's circuitry into the desktop display unit.
* 1972: PDS-1D introduced. It was similar to the PDS-1 with improved circuits and backplane.