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Mac OS X Server 1.0 is anoperating system developed byApple, Inc. released on March 16, 1999.^[1] It was the first version ofMac OS X Server.

It was Apple's first commercial product to be derived from "Rhapsody"—an eventual replacement for theclassic Mac OS derived fromNeXTSTEP's architecture (acquired in 1997 as part of Apple's purchase ofNeXT) andBSD-likeMach kernel. It could run applications written using the "Yellow Box" API, and featured components such asNetBoot, theQuickTime Streaming Server, components carried over from NeXTSTEP, and the"Blue Box" environment (which allows aMac OS 8.5 session to be launched as a separate process to run legacy Mac OS software).

Mac OS X Server 1.0 was a prelude to the first consumer-oriented version of the OS—Mac OS X 10.0—which was released in 2001. It did not include the eventualAqua user interface (instead using NeXTSTEP's Workspace Manager shell mixed with aspects of Mac OS 8's "Platinum" user interface) orCarbon API.

Mac OS X Server 1.0 contains a mix of features from the classic Mac OS, NeXTSTEP andMac OS X. Like the classic Mac OS, it has a single menu bar across the top of the screen, but file management is performed in Workspace Manager from NeXTSTEP instead of the classic Mac OSFinder. The user interface still uses theDisplay PostScript-based window server fromNeXTSTEP, instead of theQuartz-basedWindowServer, which would appear a year later inMac OS X Public Beta. Unlike any version of Classic Mac OS, windows with unsaved content display a black dot in the window close button like NeXTSTEP did. TheDock and theAqua appearance were not included; these were added later in Mac OS X.

"Carbon", essentially a subset of "classic" Mac OS API calls, was also absent. This meant that the only native applications for OS X Server 1.0 were written for the"Yellow Box" API, which went on to become known as "Cocoa". Furthermore, Apple's ownFireWire was not supported.

Server 1.0 also includes the first version of aNetBoot server, which allows computers to boot from a disk image over a local network. This was particularly useful in a school or other public-machine setting, as it allowed the machines to be booted from a single OS copy stored on Server 1.0. This made it difficult for users to damage the OS by installing software – as soon as they signed out, the machine would re-boot with a fresh OS from the NetBoot server.

To run classic Mac OS applications, Mac OS X Server 1.0 includes the"Blue Box", which essentially ran a copy ofMac OS 8.5.1 (this could be updated to Mac OS 8.6 in version 1.2 and later) in a separate process as an emulation layer. Blue Box would eventually be renamed as the "Classic Environment" in Mac OS X, featuring the latest version ofMac OS 9.

Although marketed as a large advancement overAppleShare IP, it cost $499 and did not support Apple's ownFireWire, making it incompatible with products likeMicroNet's SANcube, a line of external high-speed high-capacity storage systems (debuting in the year 2000 for $4599 to $6999).^[2][3] Buyers of OS X Server 1.0 (who often purchased new Macs to run it) and the SANcube were forced to downgrade to AppleShare IP in order to use it. OS X Server 1.0 was quickly orphaned, in favor of Mac OS X 10.0, with no discount for those who purchased it and wished to purchase OS X Server 10.0. The result is that some considered the release premature and even abait and switch.^{[citation needed]}

Timeline of Mac operating systems v t e

• Rhapsody (operating system)
• Mac OS X Server

• Mac OS X Server 1.0 to 1.2: System Requirements
• Mac OS X Server 1.2 - What's new? By: Scott AnguishArchived 2020-05-30 at theWayback Machine

• MacOS
• 1999 software
• MacOS Server

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