Editing Turbo Pascal (section)

==== Version 4 ====

Released on 20 November 1987,<ref name="tp_release_dates">{{cite web |url=https://community.embarcadero.com/blogs/entry/turbo-pascal-version-10--the-turbo-pascal-release-dates-39142 |title=Turbo Pascal version 1.0 - The Turbo Pascal release dates |date=17 November 2008 |website=Embarcadero Technologies |access-date=2021-04-13 |url-status=live |archive-url=https://web.archive.org/web/20200224140637/https://community.embarcadero.com/blogs/entry/turbo-pascal-version-10--the-turbo-pascal-release-dates-39142 |archive-date=24 Feb 2020}}</ref> Version 4 was a total rewrite, with both [[look and feel]] and internal operation much changed. The compiler generated executables in [[.exe|.EXE]] format under DOS, rather than the simpler but more restricted .COM executables. The by-then obsolete CP/M and CP/M-86 operating system versions were dropped when Turbo Pascal was rewritten. Version 4 introduced units, and a full-screen text user interface with pull-down menus; earlier versions had a text-based menu screen and a separate full-screen editor. ([[Microsoft Windows]] was still very experimental when the first version was released, and even [[Computer mouse|mice]] were rare.) An add-on package, the Turbo Pascal Graphix Toolbox, was available for Turbo Pascal V4.<ref>{{cite book |url=http://www.bitsavers.org/pdf/borland/turbo_pascal/Turbo_Pascal_Graphix_Toolbox_Version_4.0_1987.pdf |title=Borland Graphics Toolbox Manual}}</ref>