Apple Computer Inc v Mackintosh Computers Ltd [1990] 2 S.C.R. 209, is a Supreme Court of Canada case on copyright law regarding the copyrightability of software. The Court found that programs within ROM silicon chips (in this case, the Autostart ROM and Applesoft in Apple II+ systems) are protected under the Copyright Act, and that the conversion from the source code into object code was a reproduction that did not alter the copyright protection of the original work.