Computing · 1967

Virtual machines

One computer pretending to be many.

IBM's CP-40 and CP-67 gave each user a complete simulated System/360, leading to VM/370 in 1972. Virtualization later became the foundation of cloud computing.

See it in the living tree Wikipedia

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 2

IBM System/360 1964
Time-sharing 1961

What it led to 1

x86 virtualization 1999

Related measurements

The dashed line marks when it first worked.

Computation per constant dollar, 1850-2006 Latest: 7.3B million units of computer power per 2006 $ (2003) Source: Nordhaus 2007, Two Centuries of Productivity Growth in Computing, J. Econ. Hist. 67(1), Table 6