The primary difference between a police chief and a police director is that the position of police chief is a sworn law enforcement position, while someone serving as a police director is employed in a civilian capacity.hief of police positions are created by state statute and are under strict duties and guidelines set forth by the state legislative body. The chief of police is the highest ranking position on a police force, answerable only to the Board of Commissioners.
A disk cache is an integrated part of the hard disk and is a standard feature of most hard disk drives. The size of disk cache ranges from 128 MB in standard disks to 1 GB in solid state disks. Typically, a disk cache stores the most recent and frequently used programs and data. When a user or program requests data, the operating system first reviews the disk cache.
Memory Caching. A memory cache, sometimes called a cache store or RAM cache, is a portion of memory made of high-speed static RAM (SRAM) instead of the slower and cheaper dynamic RAM (DRAM) used for main memory. Memory caching is effective because most programs access the same data or instructions over and over.ome memory caches are built into the architecture of microprocessors. The Intel 80486 microprocessor, for example, contains an 8K memory cache, and the Pentium has a 16K cache. Such internal caches are often called Level 1 (L1) caches.