SPARCstations are the workstation range of Sun Microsystem's early computers based on their own SPARC processors.
SPARCstations came in three varieties :
The "Pizza box" variety of machine was just that - a large, flat case with everything layed out in a neat and tidy way.
The "Lunch box" variety were taller, thinner machines that flipped open on a hinge in the front of the box to let you have quick and easy access to the innards.
The "Integrated" variety were basically 17" monochrome monitors (running at 1152x900) with a SPARCstation motherboard crammed in at the back. They had no room for internal drives and to this day make excellent X-terminals.
These were the power machines in their day but have now been superceded by the UltraSPARC range of workstations.