CPU: TI TMS9900, 3.0 @ MHz. 16-bit Graphics: TI TMS9918A VDP, TMS9929/9929A in PAL versions. Display: 192 X 256, 16 color graphics, 32 characters by 24 lines text, Video via an RF modulator. Sound: TI TMS9919, later SN94624. 3 voices, 1 noise. Memory: 16K RAM, 26K ROM Software Media: Tape & cartridge.
Value: £20 - £70.
Depends on condition. Demand fluctuates a lot.