PDP (Programmable Data Processor) was a series of computers developed by digial. The PDP-1 was developed in 1960, had five-megacycle circuits, a magnetic core memory, and fully parallel processing with a computation rate of 100,000 additions per second.
First introduced on April 7, 1953, the 701 was IBM's first electric computer and the first mass produced computer. The machine has 256 40-bit words of main memory and can perform 2,200 multiplications per second.
The Apple I ( Apple 1 ) is the first Apple computer and originally sold for $666.66. The computer kit was developed by Steve Wozniak in 1976 and contained a 6502 8-bit processor and 4 kb of memory, which was expandable to 8 or 48 kb using expansion cards.