Editing Sequent Computer Systems (section)

===Symmetry S-series===
;Symmetry S3: The S3 was the low-end platform based on commodity PC components running a fully compatible version of DYNIX 3. It featured a single 33&nbsp;[[Megahertz|MHz]] [[Intel 80386]] processor, up to 40 [[megabyte]]s of RAM, up to 1.8 [[gigabyte]]s of [[SCSI]]-based disk storage, and up to 32 direct-connected [[serial port]]s.<ref>{{cite web
   |date=February 24, 1994
   |url=http://www.cs.uoregon.edu/research/paraducks/papers/sc93.d/subsubsection3_3_2_3.html
   |title=The Sequent Symmetry}}</ref>
 
;Symmetry S16: The S16 was the entry-level multiprocessing model, which ran DYNIX/ptx. It featured up to six 20&nbsp;MHz Intel 80386 processors, each with a 128 [[kilobyte]] [[CPU cache|cache]]. It also supported up to 80&nbsp;MB of RAM, up to 2.5&nbsp;GB of SCSI-based disk storage, and up to 80 direct-connected serial ports.

;Symmetry S27: The S27 ran either DYNIX/ptx or DYNIX 3. It featured up to ten 20&nbsp;MHz Intel 80386 processors, each with a 128 KB cache. It also supported up to 128&nbsp;MB of RAM, up to 12.5&nbsp;GB of disk storage, and up to 144 direct-connected serial ports.<ref name=S27.81>{{Cite web|url=https://people.eecs.berkeley.edu/~culler/machines/sequent2.ps|title=Sequent Symmetry S27 and Symmetry S81 Parallel Bus Architecture}}</ref>

;Symmetry S81: The S81 ran either DYNIX/ptx or DYNIX 3. It featured up to 30 20&nbsp;MHz Intel 80386 processors, each with a 128 KB cache. It also supported up to 384&nbsp;MB of RAM, up to 84.8&nbsp;GB of disk storage, and up to 256 direct-connected serial ports.<ref name=S27.81/>