ten fingers, but in binary -- you can count to a thoushand and twenty-four!

Had some books on computers when I was ten or so, discussing programming with switches, in Octal for the numbers, then was given a faculty-brat account at Indiana State on their CDC Cyber where I wrote an Eratosthenes's sieve in Fortran, (age 12) then assembed a ZX-81 (look ma, only four chips!) and started graphing complex polynomials.