First personal computer
In 1977 the personal computer industry started. Instead of people wanting computers to do work and for industry, people wanted them for personal use in their homes. The Apple II, Tandy Radio Shack TRS-80, and the Commodore PET were all popular PC's at the time. These computers used an 8-bit screen with a limited memory compacity built into the computer. PCs were also cheaper than mainframe computer systems then, making it easier for households, small businesses, and schools to afford them. The TRS-80 was leading the market then, but once Apple came out with VisiCal, a spreadsheet design, it became the leader in the PC market.
In 1977 Apple relesed the Apple II. The Apple II was a leader in the late '70s and 80s with its memory expansion, floppy disk controller, and emulator cards. This was the first user-friendly computer that allowed everyone to use it quickly and effectively. The Apple II also works with the VisiCal,, making it easy to create spreadsheets. The Apple II was also a very affordable PC that made it easy for anyone to buy.