exists today (M0 and M1 done)

planned, in roadmap order

history, east of here (key 9)

the kernel, west of here (key K)

the design and how it scales, north (key G)

data flows this way

uses or runs (thin, green)

checks (thin, blue)

Drag to orbit, scroll to zoom, right-drag to pan. W A S D walk, Q and E move down and up, hold Shift to go faster. Click a window to read it: its relations light up yellow and the rest fade until you close it. Keys 1 to 9 follow the tour, 0 is the overview, N flies north to the NORD-10, P to its program listing, T to the paper tapes; K flies west to the kernel, B to its boot, U to its structures, M to its address space; G flies north to the design, F to the fleet of one to forty thousand machines.