Error code

[1] Error codes can be reported to end users of software, returned from communication protocols, or used within programs as a method of representing anomalous conditions.

Error codes reported by consumer electronics are used to help diagnose and repair technical problems.

The Blue screen of death is an example of how the Windows operating system communicates error codes to the user.

A computer program can take different actions depending on the value of an error code.

Five-digit diagnostic trouble codes typically consist of one letter and four numbers (e.g.

The error code E74. Above the large E 74 code is the message "System Error. Contact Xbox Customer Support." repeated in different languages.
Error E74 on the Xbox 360 , indicating a hardware failure [ 2 ]