TeachText

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The TeachText application is a simple text editor made by Apple Computer bundled with System 7.1 and earlier, and was one of the only applications included with the Mac system software, leading to its most frequent role as the application to open "ReadMe" files. It was named "TeachText" as a nod to its role in tutorials and other introductory materials at the time. It supported only text in the default text font (12-point Geneva, at the time), with formatting such as bold, italic and underline, using the MacRoman text encoding, and had limited support for embedded images achieved by replacing non-breaking spaces with images loaded from the file's resource fork.

The underlying text engine was the TextEdit Manager built into Mac OS, which had a limit of 32k on text files, leading to occasional frustrated outcries among its users since it was also the default application in the Macintosh operating system for opening text files that had lost their association with a particular program and thus were "orphaned".

TeachText was derived from the Edit application, and later evolved into SimpleText.

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