worlds costliest programming errorThe year was 1962 and NASA sent its Mariner I to Mars as a part of its first interplanetary mission.THE ROCKET IS DESTROYED WITHIN A FEW MINUTES OF ITS LAUNCH.

Reason: The velocity calculation in the code had raw velocity “R” instead of smooth velocity R BAR.The programmer had carefully implemented the minutest details of every specification needed though missed putting a hyphen on top of R used for velocity is termed as the costliest hyphen in history…!

Estimated loss:2.2 billion USD

The year was 1992 and Mars Climate Orbiter reached Mars but was lost after it entered into the atmosphere..

Reason:The mission involved involved two firms,The Jet Propulsion Laboratory and Lockheed Martin Astronautics which were at two different places and also used two different units.As a result the ground software used metric units(Newton seconds ) instead of English units (pound seconds).

Estimated loss:18.5 billion USD

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