[Lancey Howard]

That is cool!
Interestingly, Voyager 2, which was launched a couple weeks before Voyager 1, hasn’t reached interstellar space yet. Both spacecraft are still working, and both were launched in 1977, with 1977 technology. Boggles the mind.

[Southack]

Pioneer 10 was launched in 1972 and beat both Voyagers out of the Solar System. P10 exited circa 2003.

[Bobalu]

If I remember correctly they have an 1802 processor serving as the main computer. It was the silicon-on-saphire version as it was very rugged.

The 1802 was the CPU of one of the earliest low-cost computer kits, the Cosmac Elf.

[ImJustAnotherOkie]

Too many pollution control devices slowed it down.