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Manchester Baby (SSEM)
1948
The 1948 Manchester Baby from the University of Manchester, the first computer to run a program from electronic stored memory.
Manchester Baby (SSEM) Online Emulator
Play Manchester Baby (SSEM) using JavaScript directly in your browser.
Controls
Boots with a demo loaded and running: a counter that increments a store word forever, so its dot pattern (and the accumulator) visibly climb across the Williams-Kilburn tube. The amber marker on the left is the control register CI walking the program. Use the debugger to single-step one instruction, set a breakpoint on a store line, or watch a line for writes. The on-screen panel gives Run / Stop / Step / Reset — the Baby had no keyboard, only switches.
Configurations
| Configuration | Emulator | Machine | OS | Legal | |
|---|---|---|---|---|---|
| Counter demo | Manchester Baby (SSEM) | Manchester Baby (SSEM) | open | Open ⛶ |
Chips
Emulators
| Emulator | Type | License | Site |
|---|---|---|---|
| Manchester Baby (SSEM) | online | Public domain | Website ↗ |