IBM 1981-1995 - 15 years
Microsoft 1995-2009 - 15 years
Google 2009-

To me it seems like Microsoft is currently in approximately the same position that IBM was in 1994. Back then IBM was top dog on the PC and had been since releasing their micro-computer which they called the PC in 1981. We still refer to PCs [...]

The ASCII character set consists of 128 characters. 32 of these are control characters (meaning that they do something rather than appearing as an actual character. The rest of the standard ASCII characters can be found listed alongside their decimal and hexadecimal values on this reference page. There is also a link to a section [...]