Editing Entry point (section)

===Historical===
Historically, and in some contemporary [[legacy system]]s, such as [[OpenVMS|VMS]] and [[OS/400]], computer programs have a multitude of ''entry points'', each corresponding to the different functionalities of the program. The usual way to denote entry points, as used system-wide in VMS and in [[PL/I]] and [[Macro (computer science)|MACRO]] programs, is to append them at the end of the name of the [[executable image]], delimited by a [[dollar sign]] ($), e.g. <code>directory.exe$make</code>.

The [[Apple I]] computer also used this to some degree. For example, an alternative entry point in Apple I's [[BASIC]] would keep the BASIC program useful when the reset button was accidentally pushed.{{Clarify|date=July 2010}}<!-- in memory? difficult to know without a reference -->