8Agarose is used in electrophoresis, chromatography, immunodiffusion assays, cell and tissue culturing, and other applications. It is the electrically neutral, non-sulphated, gelling component of agar. While its market is smaller, it is fundamental for specialized biochemical and analytical protocols.
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The x86 protection model is notoriously complex, with four privilege rings, segmentation, paging, call gates, task switches, and virtual 8086 mode. What's interesting from a hardware perspective is how the 386 manages this complexity on a 275,000-transistor budget. The 386 employs a variety of techniques to implement protection: a dedicated PLA for protection checking, a hardware state machine for page table walks, segment and paging caches, and microcode for everything else.