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{{Distinguish|Error correction code}}
In [[computing]], an '''error code''' (or a '''return code''') is a numeric or [[Alphanumericals|alphanumeric]] code that indicates the nature of an error and, when possible, why it occurred. It <ref>{{Cite web|url=https://www.computerhope.com/jargon/e/errorcode.htm|title=What is an Error Code?|website=ComputerHope.com |access-date=2020-01-22}}</ref> Error codes can be reported to end users of software, returned from [[Communication protocol|communication protocols]], or used within programs as a method of representing anomalous conditions.
== In consumer products ==
[[File:Error-code-e74.jpg|thumb|upright=1.3|alt=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<ref>{{Cite web |title=Xbox Support |url=https://support.xbox.com/en-US/help/errors/xbox-360/error-code-e74 |access-date=2023-03-12 |website=support.xbox.com}}</ref>]]
Error codes are commonly encountered on displays of consumer electronics to users in order to communicate or specify an error. They also use hexadecimal too. They are commonly reported by consumer electronics when users bring electronics to perform tasks that they cannot do (e.g., [[Division by zero|dividing by zero]]), or when the program within a device encounters an anomalous condition.
Error codes reported by consumer electronics are used to help diagnose and repair technical problems. An error code can be communicated to relevant support staff to identify potential fixes, or can simplify research into the cause of an error.
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