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This article is about the first PDP-8, which had that name. For information about PDP-8's in general, see PDP-8 family.

An original, transistorized PDP-8
Manufacturer: DEC
Architecture: PDP-8
Year Introduced: 1965
Year Discontinued: 1969
Form Factor: minicomputer
Word Size: 12 bits
Design Type: clocked random logic
Clock Speed: 333KHz
Memory Speed: 1.5 μseconds
Physical Address Size: 32KW (requires optional Type 183)
Virtual Address Size: 4KW
Memory Management: bank select
Bus Architecture: Negative I/O Bus
Predecessor(s): PDP-5
Successor(s): PDP-8/I
Price: US$18,500

The PDP-8 was DEC's major breakthrough, and now considered the first successful minicomputer. It was, by a significant amount, the cheapest computer yet made at the time. The PDP-8 was constructed with discrete transistors, packaged into DEC's FLIP CHIP technology.

Operating Systems

The PDP-8 could run various operating systems including:


There are various emulators for PDP-8 systems including: