ECC Memory (short for Error-Correcting Code Memory) is a type of computer memory system that is specifically designed to automatically detect and correct corruption and/or errors in data as it passes in and out of memory.
The L2 Cache (short for Level 2 Cache, a.k.a. Secondary Cache) is a memory bank that is either external to the microprocessor (CPU chip), built on the motherboard, or built into the microprocessor (CPU chip). The L2 Cache feeds, and is slower than the L1 Cache.
Jaggies (a.k.a. Stair-Stepping and Aliasing) refers to the stair-like appearance of lines when there are not enough pixels in an image to realistically represent it or the output device (monitor or printer) does not have enough resolution to properly portray smooth lines.
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