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First Execution of the Manchester Baby (SSEM)

Tom Kilburn, Freddie Williams, and their team are about to execute the first program on the Manchester Baby (SSEM), the world's first stored-program computer. This moment represents the culmination of

Setting

A small, cluttered laboratory in the University of Manchester's Electrical Engineering Department. The room is filled with equipment, wires, and prototype components. The Manchester Baby (SSEM) occupies a central position, its large metal frame and exposed vacuum tubes drawing immediate attention.

Characters

The figures in this scene as an entity network — co-presence links everyone in the moment; speakers who trade lines are bound tighter. Turn the resolution dial to reveal depth the engine actually computed.

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Tom Kilburn
primary
A lean man in his late 20s with sharp features, short dark hair neatly combed back, and wire-rimmed glasses that catch the laboratory light. His hands bear faint marks from frequent work with electronics. His posture suggests both intellectual intensity and physical exhaustion from prolonged focus.
Freddie Williams
primary
A middle-aged man in his late 40s with a lean, scholarly build. His greying hair is neatly combed back, and he wears round wire-framed glasses that magnify his keen, observant eyes. His face shows faint lines of concentration and years of intellectual pursuit.
Lab Assistant
secondary
A young man in his early 20s with a slender build and short, neatly combed brown hair. His face is clean-shaven, and his hands move with precise, practiced motions. His wire-rimmed glasses reflect the dim glow of the machine's tubes as he works.
Graduate Student
secondary
A young man in his mid-20s with a slender build, wearing round wire-frame glasses that frequently slip down his nose. His dark brown hair is slightly tousled from hours of focused work, and his hands bear ink stains from frequent note-taking.

Dialog

Tom Kilburn She's drawing 3.2 milliamps on the accumulator bus—no, 3.5 now—steady as she goes. Williams, check your cathode readings against the Manchester code tables.
Freddie Williams Well, you see, the deflection plates show perfect alignment. Indeed, the waveform matches our calculations precisely... if the store holds through this cycle—
Graduate Student Professor Williams—the second memory line is fluorescing exactly as predicted! Should I... I mean, the manual says we should verify the delay line—
Tom Kilburn Leave the delay line—this old girl either works or she doesn't. Look! The program counter's advancing properly for the first time in history!
Freddie Williams Indeed. We may have just crossed the Rubicon, gentlemen. The stored-program principle is functioning as theorized...

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