Adobe Flash, Adobe Reader, and Oracle's Java. All three are virtually ubiquitous on modern-day PCs, and all three provide handy-dandy functionality--functionality that, in the case of Flash and Java, can't be directly reproduced by a third-party solution. If we lived in a vacuum, it would be hard to argue that the trio doesn't deserve its spot on computers around the globe.Related StoriesApple knocks £300 off build-to-order 768GB SSD for iMacRare Matt Groening Apple brochure & poster unearthed