Mycobacteria are a type of germ. There are many different kinds. The most common one causes tuberculosis. Another one causes leprosy. Still others cause infections that are called atypical mycobacterial infections.
Released with much fanfare in January of 1984, the Macintosh was the first affordable computer to include a Graphical User Interface. It was built around the new Motorola 68000 chip, which was significantly faster than previous processors, running at 8 MHz.
35 Years Ago Today, Spreadsheets Were Invented. On this day in 1979, a computer program called VisiCalc first shipped for the Apple II platform, marking the birth of the spreadsheet, a now-ubiquitous tool used to compile everything from grocery lists to Fortune 500 company accounts. And thatâs why October 17th is Spreadsheet Day, celebrated by fans of the form.