c1E

c1E is an alphanumeric designation used in multiple domains, and there is no single, universally accepted definition. It can appear as a model or part code in hardware catalogs, as a gene or protein symbol in biology databases, or as a label within software or standards documents. Because meanings are context dependent, the interpretation of c1E varies by field and source.

In computing and electronics, c1E most often appears as a reference to a processor power state. Specifically, C1E (Enhanced C-state) is a low-power idle mode for CPU cores in many x86 processors. When the system is idle, entering the C1E state reduces voltage and clock activity to conserve energy and limit heat generation. The exact behavior and wake latency depend on the processor model, firmware, and operating system settings, and some platforms allow users to enable or disable C1E in BIOS or OS power management options.

In biology and bioinformatics, C1E may be used as a gene or protein symbol in certain organisms or datasets. Because gene nomenclature is not standardized globally, the label c1E does not correspond to a single universal entity and must be cross-referenced with organism-specific databases to determine the exact gene or protein identity.

In other contexts, c1E can be a catalog number, project code, or product identifier issued by manufacturers, researchers, or standards bodies. The precise meaning is determined by the issuing organization.

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