- A deviation from a true, expected, or specified result. For example, a discrepancy between a calculated, observed, or measured value, and the theoretically correct one. Another example is the presence of a difference between transmitted and received data.
- The magnitude or degree of an error (1).
- In computers, an inability to carry out an operation, or an incorrect result, as a result of a software and/or hardware deficiency, or mistakes by a user.
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