Optoelectronic Computer From An Old Calculator
It seems small- and medium-scale integration chips have sunk into oblivion long ago. But don't you throw away ye olde vacuum-display calculators. The scientists at Saratov Institure of Precise Mechanics found a way to tranform these ancient devices into newest optoelectronic computers.
Their development utilizes several physical effects at once. First, the laser radiation repeatedly reflects from silicon chip surfaces thus making a coincident wave; second, the laser radiation interacts with plasma that forms in discharges of vacuum display and gas tube (TGI1-365). As a result, they can modulate laser radiation intensity or, vice versa, discharge current strength by laser power.
The developers claim they achieved outstanding results: the potential data transfer rate of internal bus exceeds 1 petabit (1 quadrillion bit) per second! They just couldn't measure the internal bus throughput with enough precision, since the device's microprocessor operates at mere 32.168 kHz.
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