It's not a binary choice. Independent boffin builds a ternary CPU on an FPGA

The 5500FP is a ternary CPU implemented on an FPGA. It's not very fast, but it makes it easier to experiment with computers ...
Hackaday

Ternary RISC Processor Achieves Non-Binary Computing Via FPGA

You would be very hard pressed to find any sort of CPU or microcontroller in a commercial product that uses anything but ...
Design News

Implementing a 1-Digit Binary Coded Decimal (BCD) 8421 Adder, Part 1

When anyone is first introduced to the topic of digital computers, they are almost invariably told that these machines are based on binary (base-2) logic and the binary number system, where “binary” ...
ExtremeTech

Samsung-Backed Researchers Debut Ternary Semiconductor Design

One of the first things we learn about computers is that they perform operations using binary code to represent values. It's a fundamental trait of computing -- but it's not a requirement. It's ...
Nature

Ternary Optical Computing Systems

Ternary optical computing systems represent an innovative leap beyond traditional binary computation by utilising three discrete logic states. This approach leverages the intrinsic advantages of ...