1970: The newly formed Intel Company announces the Intel 1103, the first Dynamic Access Memory (DRAM) chip. 1971: Alan Shugart leads a group of IBM engineers that invented a “floppy disk” that allows data to be shared between computers. Around this time, Kenbak-1 was born. The products were considered the world’s first personal computer and introduced as an easy-to-use educational tool, but they failed to sell just over a dozen of them. Snowmobile everything will kill you so choose something fun poster. Without a microprocessor, they only have 256B compute power and their output is just a series of flashing lights. 1973: Robert Metcalfe, a member of the Xerox research team, developed Ethernet to connect many other computers and hardware. 1974 – 1977: Several personal computers hit the market, including the Scelbi & Mark-8 Altair, IBM 5100, TRS-80 from Radio Shack (informally known as “Trash 80”) and PEToreore.