Conventions used in this guide

Reference Shortcuts: Zebra, ZX, ENTER

Zebra
Zebra Systemns, Inc. will often be referred to as Zebra.

ZX
For brevity, I will use the reference ZX to refer to your computer, whether it is a Sinclair ZX81, Timex TS1000 or TS1500.
OpendSpand was design in Sweden for the Sinclair ZX81.  It also works on the Timex TS1000.   The current Zebra OpenSpand ( need a version number assigned ) physically interfers with the power connector plug on the Timex TS1500, but with a small edgecard extension installed, prelimary testing indicate that the TS1500 works.  

ENTER
The ZX81 key labeled ENTER is labeled NEW LINE on the U.S.  Timex TS1000 and TS1500 computers.  The convention in this document will be to refer to the key as being the ENTER key.