Question: What processed Apple Qmaster jobs on a cluster and was introduced in 2002?

Context paragraphs:
The Bite in the Apple: The Bite in the Apple: A Memoir of My Life with Steve Jobs is by Chrisann Brennan.  Brennan is an American painter, Steve Jobs' high school girlfriend, an early employee of Apple Inc. before it went public, and the mother of Jobs' first child Lisa Brennan-Jobs.  "The Bite in the Apple" was released on October 29, 2013.

Apple II series: The Apple II series (trademarked with square brackets as "Apple ][" and rendered on later models as "Apple //") is a family of home computers, one of the first highly successful mass-produced text command microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer (now Apple Inc.) and introduced in 1977 with the original Apple II.  In terms of ease of use, features and expandability, the Apple II was a major technological advancement over its predecessor, the Apple I, a limited-production bare circuit board computer for electronics hobbyists that pioneered many features that made the Apple II a commercial success.  Introduced at the West Coast Computer Faire on April 16, 1977, the Apple II was among the first successful personal computers; it launched the Apple company into a successful business (and allowed several related companies to start).  Throughout the years, a number of models were sold, with the most popular model remaining relatively little changed into the 1990s.  While primarily an 8-bit computer, by mid-run a 16-bit model was introduced.

Xserve: Xserve was a line of rack unit computers designed by Apple Inc. for use as servers.  When the Xserve was introduced in 2002, it was Apple's first designated server hardware design since the Apple Network Server in 1996.  In the meantime, ordinary Power Macintosh G3 and G4 models were rebranded as Macintosh Server G3 and Macintosh Server G4 with some alterations to the hardware, such as added Gigabit Ethernet cards, UltraWide SCSI cards, extra large and fast hard drives etc. and shipped with Mac OS X Server software.  The Xserve initially featured one or two PowerPC G4 processors, but was later switched over to the then new PowerPC G5, transitioned to Intel with the Core 2 based Xeon offerings and subsequently switched again to two quad-core Intel Nehalem microprocessors.

EU NanoSafety Cluster: The EU NanoSafety Cluster (NSC) is a cluster of European Commission-funded projects in the funding programs FP6 (2002–2006), FP7 (2007–2013), and Horizon 2020 aka H2020 (2014–2020) framework programmes, aimed at harmonizing the research done in these projects.  The cluster coordinates work done by the NanoSafety Cluster projects to study and establish the safety of nanomaterials.  The coordination by the cluster is organized in half-yearly meetings and various working groups.  An example of a result of the NanoSafety Cluster's harmonization was the prioritization of which nanomaterials to study.  The NSC has become a reference actor for consumers' associations in the field.

Apple Qmaster: Apple Qmaster is a system made by Apple Inc. that provides automated work distribution and processing for high-volume projects created with certain digital visual effects software packages: Shake, Autodesk Maya, Final Cut Pro, Compressor, DVD Studio Pro and any UNIX command-line program.  It processes such jobs on a cluster of Mac or Xserve computers.

Apple II: The Apple II is an 8-bit home computer, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak (Steve Jobs oversaw the development of the Apple II's foam-molded plastic case and Rod Holt developed the switching power supply).  It was introduced in 1977 at the West Coast Computer Faire by Jobs and was the first consumer product sold by Apple Computer.  It is the first model in a series of computers which were produced until Apple IIe production ceased in November 1993.  The Apple II marks Apple's first launch of a personal computer aimed at a consumer market – branded towards American households rather than businessmen or computer hobbyists.

Apple I: Apple Computer 1, also known later as the Apple I, or Apple-1, is a desktop computer released by the Apple Computer Company (now Apple Inc.) in 1976.  It was designed and hand-built by Steve Wozniak.  Wozniak's friend Steve Jobs had the idea of selling the computer.  The Apple I was Apple's first product, and to finance its creation, Jobs sold his only motorized means of transportation, a VW Microbus, for a few hundred dollars, and Wozniak sold his HP-65 calculator for $500; however, Wozniak said that Jobs planned to use his bicycle if necessary.  It was demonstrated in July 1976 at the Homebrew Computer Club in Palo Alto, California.

Apple Qadministrator: Apple Qadministrator is a utility for creating and managing Qmaster clusters, which are used for distributing encoding, rendering and compression processes throughout a Mac-based network.  The program is included with Shake (discontinued) - Apple's composing software, Final Cut Studio and Logic Pro.

Print server: A print server, or printer server, is a device that connects printers to client computers over a network.  It accepts print jobs from the computers and sends the jobs to the appropriate printers, queuing the jobs locally to accommodate the fact that work may arrive more quickly than the printer can actually handle.  Ancillary functions include the ability to inspect the queue of jobs to be processed, the ability to reorder or delete waiting print jobs, or the ability to do various kinds of accounting (such as counting pages, which may involve reading data generated by the printer(s)).

Apple Pro Mouse: The Apple Mouse (formerly Apple Pro Mouse) was introduced in July 2000 at the Macworld Conference & Expo in New York City.  Apple Computer was one of the first companies to ship an optical mouse as the standard input device.  While the industrial design of the Pro Mouse was handled entirely by Apple's in-house designers, some of the hardware has been engineered by Sparkfactor Design.  The Pro Mouse was included with the Power Mac G4 Cube, also introduced at that year's Macworld.  Apple was the first company to use USB mice and keyboards exclusively when they introduced the "hockey-puck" mouse with the original iMac G3 in May 1998.  Like the "hockey-puck" mouse and all future mice Apple would make, the Apple Pro Mouse was a USB mouse with a much shorter cord than its ADB predecessors, its 2-foot cord was designed to plug neatly into one of the two ports of the Apple Pro Keyboard's built-in USB hub.  The Apple Pro Mouse also featured a unique mechanism to allow for 3 click force settings for the required pressure to click the mouse.  The Apple Pro Mouse was originally released on the iMac G3 "Snow."

Supporting paragraphs: Apple Qmaster Xserve
Answer: Xserve computers.