Comercial products

There is a variety of object oriented products on the market.

Compilers

As concerns language compilers/interpreters, for (IBM compatible) PC's there is the Actor language from the Whitewater group (which is primarily of interest because of its close integration with MS-Windows). Further there are a number of C++ compilers, including the Borland C++ compiler (which is very popular for graphics programming) and the Zortech compiler (that offers a 32-bit DOS extender, allowing the use of a much larger memory space then ordinary DOS programs). Also available is Smalltalk (from Parc Place systems) and Objective-C (from the Stepstone company). All these languages (except Actor) are available under Unix as well. For C++ the leading compiler is AT\&T 3.0 (which most closely conforms to  [Lippman91] and  [ES90]). However, also the GNU compiler gcc is widely used. This compiler is freely available for those having access to the Internet. Objective-C is usually obtained packaged with the NeXt computer, since it is used in NeXtstep, the interface builder for the NeXt computer. Finally, Object-Pascal has primarily been used on Apple MacIntosh computers. Recently, however, also C++ compilers have become available for the MacIntosh.