This document discusses the PEST analysis of Walmart and Sam Walton from 1970 to 1985. It analyzes the political, economic, social, and technological factors during this time period, listing several important technological innovations that emerged including barcodes in 1973, e-mail and floppy disks in 1971, genetic engineering in 1973, ink jet and laser printers in the mid-1970s, LCDs in 1970, microprocessors in 1971, MRI scanners in 1977, personal computers in 1975, and plans for a space station in 1973.