Pizza-box form factor

[citation needed] Other notable examples have been among the highest-performing desktop computers of their generations, including the SGI Indy, the NeXTstation, and the Amiga 1000.

The pizza box form factor was also seen in budget and lower-end lines such as the Macintosh LC family, which was popular in the education market.

Systems originally designed for desktop use were placed on shelves inside of 19-inch racks, sometimes requiring that part of their cases be cut off for them to fit.

Since the late 1990s, pizza boxes have been a common form factor in office cubicles, schools, data centers or industrial applications, where desktop space, rack room and density are critical.

The pizza box form factor for smaller personal systems and thin clients remains in use well into the 21st century, though it is increasingly being superseded by laptops, nettops or All-in-One PC designs that embed the already size-reduced computer onto the keyboard or display monitor.

Macintosh LC with the common setup of the monitor placed on top of it
An HP 9000 workstation computer in pizza-box form factor.
The LC family (LC, II, III, 475, Quadra 605) front face
A NeXTstation slab or pizza box workstation (2.52 in (6.4 cm) high) sits flat under a 17 in (43 cm) CRT monitor , 1990.
Two SPARCstation 20 workstations stacked to show the front and back sides, a typical "pizza box" case