The earliest practical form of programming is generally considered to have been done by Joseph Jaquard in France in 1804. Jaquard designed a loom that would perform certain tasks when the appropriate punched cards were fed through a reading device.
Since 1804, programming has become much more commonplace, and new computer programs are produced every day. In order to keep up with the competition, most software companies will begin selling programs long before they’re perfect, only to release updates and newer versions as the programmers correct flaws and add new features.
Anyone who waits until their program is perfect to market it will find that their program is obsolete when it finally goes on sale.