In 1985 Steve Jobs resigned from Apple and founded NeXT Inc. in order to build the NeXT Computer. It was ahead of its time and had amazing features thanks to the NeXTSTEP operating system, most famously used at CERN by Sir Tim Berners-Lee to create the World Wide Web. NeXTSTEP later became OPENSTEP and when Apple acquired NeXT in 1997, they used it as the basis for Mac OS X and iOS. If you've done any Mac or iOS programming, you've seen the echoes of NeXTSTEP in the type names - NSObject, NSString, NSDictionary, and many others all come directly from NeXT (NS = NeXTSTEP).

These computers cost about as much as a new car when they first came out, so they were out of reach for most people. What was it like to use a top of the line system in the early 90s? Let's build our own and find out!

You'll need the following:

  • A computer that can run VirtualBox
  • VirtualBox ( - Download it for your system and get the extension pack
  • OPENSTEP ISOs and floppy images, you can find them at
    • You'll want OPENSTEP 4.2 User for Intel, Install Disk Floppy Image, Drivers Floppy Image, and Network Driver + Patch 4 Bundle.
    • After extracting the floppyimage zip files, rename the images from .floppyimage to .img
  • (optional) NeXT Keyboard and Mouse, plus a USB adapter - you can build one yourself with the guide here, or get a NeXT2USB adapter from Drakware

This guide was first published on Mar 15, 2019. It was last updated on Mar 15, 2019.

This page (Overview) was last updated on Feb 14, 2021.

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