SEWALL@UCONNVM.BITNET.UUCP (03/31/87)
I've had Terrapin Logo around for my children since Version 1.0 and we really like it. The current version (3.0) loads in less than 10 seconds, recognizes up to 128K (we never found 64K limiting really), and there is a utility for translating Apple Logo files. I chose Terrapin on the basis of a recommendation from a computer camp operator who had extensive experience with both Apple Logo and Terrapin (which uses the same code as Krell Logo I believe). Terrapin has a trace function (which Apple Logo didn't have then, and I don't know whether it has now) and (to this day) Terrapin is the most extensively documented Logo. I also recommend Daniel Watt's book LEARNING WITH LOGO. There are lots of good excercises and ideas. The Logo source code for everything is in the Appendix (in Terrapin/Krell, Apple Logo, and TRS-80 Logo). I found that some of the code, especially for printing turtle graphics through my Grappler+, in those routines could be improved upon (part of the fun I think is improving Logo routines). Logo is capable of much more than just turtle graphics pictures. The list handling routines are especially facinating. One of the exercises in Watt's book is a poetry generator.