Abacus
Astrolabe
Davinci's calculator
Napier's Bones
Pascal's Arithmetic Calculator
Step Reckoner
Slide Rule
Jacquard's Loom
Difference Engine
Analytical Engine
Hollerith Machine
Turing Machine
ENIAC
Zuse 23
Collosus MK 2
Harvard Mark 1
UNIVAC
ABC
Transistors
Baby
BINAC
EDSAC
EDVAC
Mainframe Computer
FORTRAN
Integrated Circuit
COBOL
Minicomputer
BASIC
Small Talk
Unix
Xero star
PASCAL
Intel 4004
Microprocessor
Cray Supercomputer
C
CPM
Altair Computer
Apple 2
IBM Pc
C++
Original Apple Macintosh
NeXT
LINUX