TI Logo II

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This was the second attempt by TI to implement LOGO, a language they had worked on with its inventor Seymour Papert (see his book "Mindstorms").

LOGO II like LOGO I requires memory expansion.

The graphics are produced by the language constantly redefining the usual character set, with a limit on the number of characters to redefine ("Out of Ink" error) and the use of color.

LOGO 1 had a number of bugs which were addressed in LOGO II but at the last minute a few bugs were discovered to have been introduced, as usual with software debugging.

LOGO 2 contains a new tiny bug...the primitive MS (makeshape) which works in a defined procedure in LOGO 1 can only be used in direct mode in LOGO 2. Thus one of the sample procedures supplied will not run.