core 1. (storage) Main memory or RAM. This term dates from the days of ferrite core memory and, like the technology, is now archaic.
Some derived idioms outlived the hardware: for example, "in core" (meaning paged in), core dump, "core image", "core file". Some varieties of Commonwealth hackish prefer store. [Jargon File] Last updated: 2009-11-06
2. (processor) An integrated circuit design, usually for a microprocessor, which includes only the CPU and which is intended to be incorporated on a chiip with other circuits such as cache, memory management unit, I/O ports and timers. The trend in 2009 is to have multiple cores per chip. The ARM6, ARM7 and ARM8 are early examples, the Intel Core i9 more recent. 3. (language) A varient on kernel as used to describe features built into a language as opposed to those provided by libraries. Last updated: 2009-11-06