Machines › Calculators › Sinclair › Sinclair Cambridge
Sinclair Cambridge
1973
The Sinclair Cambridge, Clive Sinclair's compact 1973 pocket calculator sold in cheap kit and ready built form.
Sinclair Cambridge Online Emulator
Play Sinclair Cambridge using JavaScript directly in your browser.
Controls
Boots the 1973 Sinclair Cambridge four-function calculator to its "0." display. It runs the actual TMS-0801 microcode Veniamin Ilmer optically recovered from the chip die. Key a number, an operator, another number, then =. Use the on-screen keypad or your keyboard (digits, . + - * /, Enter for =, Backspace for C, Esc for CE), or open the debugger to single-step the chip and watch its three BCD registers shuffle digits.
Configurations
| Configuration | Emulator | Machine | OS | Legal | |
|---|---|---|---|---|---|
| Sinclair Cambridge (boots to 0.) | Sinclair Cambridge | Sinclair Cambridge | grey | Open ⛶ |
Chips
Emulators
| Emulator | Type | License | Site |
|---|---|---|---|
| Sinclair Cambridge | online | GPL-2.0 | Website ↗ |