ZX-81 means Sinclair Timex personal computer, based on Z-80 microprocessor in
Hardware
Similar to ZX-81
286 - Intel 80286 Microprocessor
2S2D - Double-Sided Double-Density
386 - Intel 80386 Microprocessor
3DA - Three Dimensional Architecture
3DA - Three Dimension Array
3DDDI - 3-Dimensional Device Dependent Interface
3DRAM - Three-Dimensional Random Access Memory
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