NeXTSTEP

NeXTSTEP was an advanced operating system made by NeXT, a company started by Steve Jobs, in the late 1980s and early 1990s. It used ideas from the Mach kernel and UNIX, which made it good at handling many tasks at once. NeXTSTEP first ran on NeXT's own computers, like the NeXT Computer, and was later used on many other types of computers.

Even though it wasn’t very popular then, NeXTSTEP interested many computer experts. It was used to create important early software, like the Electronic AppWrapper, which helped manage and protect application software and digital media. This idea later influenced today’s app stores. Famous creations such as the first web browser, and games like Doom and Quake, were also made using NeXTSTEP.

In 1996, Apple Inc. bought NeXT. They used parts of NeXTSTEP to build the new macOS, which replaced the older Classic Mac OS. Since then, all of Apple’s operating systems, including those for smartphones and tablets, have been based on macOS.

Overview

NeXTSTEP is a special kind of operating system made from several important parts. It includes a Unix system based on the Mach kernel and BSD, along with a special way to show pictures and windows on the screen called Display PostScript. It also uses the Objective-C programming language and focuses on building things in an organized way, called an object-oriented style.

NeXTSTEP introduced some new ideas that later became common, like the Dock, which you can see today in macOS. It also brought features such as colorful icons, easy dragging of items, and smooth scrolling. These ideas helped make computers easier and more fun to use for everyone.

History

NeXTSTEP was an operating system made from parts of Mach and BSD. A preview was shown when the NeXT Computer came out on October 12, 1988. The first full version, NeXTSTEP 1.0, was released on September 18, 1989. Over time, it was updated to work on many different computers.

Later, NeXT made OpenStep, which could run on many operating systems. In 1997, NeXTSTEP helped Apple create Rhapsody, which led to the creation of macOS. macOS later became the basis for iPhone OS 1, iOS, iPadOS, watchOS, and tvOS.

Legacy

The NeXTSTEP platform helped create many early inventions in computing. It was used to make the first web browser and the first app store. Many ideas from NeXTSTEP are still used today.

NeXTSTEP was also used for early computer games like Doom, Doom II, and Quake. It helped make tools for drawing and spreadsheets that we still use. Later, Apple bought NeXT and used its technology to build the Mac OS X operating system and iOS.

Release history

Versions up to 4.1 were general releases. OPENSTEP 4.2 pre-release 2 was a bug-fix version. Apple published it in September 1997 and supported it for five years.