The brains of the quantum dice from DIY Embedded at $25 a throw. The processing power of these USB keys is roughly equivalent to a ZX81 or a BBC micro from the mid 80’s; (likewise the desktop computer of the early 2000’s is now a single-board computer). The largest component is the USB plug. The processor (black square) and 2.4 GHz RF antenna (blue lozenge) are roughly the same size.

The brains of the quantum dice from DIY Embedded at $25 a throw. The processing power of these USB keys is roughly equivalent to a ZX81 or a BBC micro from the mid 80’s; (likewise the desktop computer of the early 2000’s is now a single-board computer). The largest component is the USB plug. The processor (black square) and 2.4 GHz RF antenna (blue lozenge) are roughly the same size.