PS/2E

The IBM Energy or PS/2E (IBM 9533) is an IBM Personal System/2 computer. It was the first Energy Star compliant personal computer and featured very low power consumption (compared to other computers of its time) and made extensive use of recycled materials during the manufacturing process.

Specifications

The PS/2E featured a 486SLC2 50/25MHz with 16 kilobytes of L1 [CPU cache] allowing the CPU to execute instructions at twice the 25MHz bus speed while required instructions and data reside in the cache. No external L2 cache was designed on the motherboard however; so the machine relies on its 16 KB of L1 cache for performance. With an ISA bus, it accepts a single ISA option adapter with the use of a riser card. Depending on the sub-model number, it came supplied with either a special option adapter for four PC card PCMCIA slots, or as a diskless workstation with an ethernet or token-ring adapter. Additional options included several PCMCIA cards, a color LCD screen, and a color LCD touch-screen with a special version of OS/2.