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The Intel Celeron is Intel’s value-oriented x86 processor line introduced in 1998 as a low-cost derivative of the P6 family, designed to deliver mainstream IA-32 compatibility at reduced platform and silicon cost by disabling or reducing features present in higher-end Pentium II and Pentium III parts. The first Celerons, based on the 0.25 µm Covington core, used Slot 1 packaging and notably omitted L2 cache entirely, which severely limited performance, while the later Mendocino core, also initially in Slot 1 and later in Socket 370 form, integrated 128 KiB of full-speed on-die L2 cache and became far more competitive. Subsequent Celeron generations continued to track Intel’s mainstream desktop cores, including Pentium III-derived variants such as Coppermine-128 and Tualatin-based models, typically with reduced cache and sometimes lower front-side bus speeds relative to Pentium-branded counterparts. Technically, the Celeron family is best understood not as a distinct architecture but as Intel’s budget-tier implementation of existing x86 cores, defined primarily by cache, bus, and feature segmentation rather than by unique microarchitectural design.