The Z1 was created by Konrad Zuse and it was considered to be the first electrical binary programmable computer

The ABC(Atanasoff-Berry Computer) was developed by John Vincent Atanasoff and Cliff Berrybut after US Frederal judge Earl R. Larson signed his decision that the ENIAC patent by Eckert and Mauchly was invalid in October 19th 1973. This was the the first electronic digital computer

This computer was contructed by J. Presper Eckert and John Mauchly and it was the first digital computer that was functional.

This was a British computer that was considered to be the first stored program electronic computer. This computer could also run the first graphical computer game

This was contructed by MIT and it was the first digital computer with magnetic core Ram and real-time graphics

The TX-O or transistorized Experimental computer was the first transistorized computer and it was developed at the Massachussetts Institute of Technology

The digital computer Corporation(DEC) developed the first minicomputer named the PDP-1

This computer included a fully functional computer and was considered revolutionary at the time. It included a display and mouse and it operated by ultilizing windows menus and icons like many computers do today.

Ed Roberts developed a computer that relied on a series of switches for inputting data and output data by turning on or off a series of lights. He coined the computer"a personal computer"

This computer was the first one that is considered portable.I t was developed by Adam Osborne and it had a 5 inch display, floppy drives, a modem, and 64KB of memory.