Computer case,computer chassis, cabinet, box, tower, enclosure, housing, system unit or simply case

1. A computer case is also known as a computer chassis, cabinet, box, tower, enclosure, housing, system unit or simply case which is the enclosure that contains most of the components of a computer
2. Cases are usually constructed from steel (often SECC—Steel, Electrically Chromate Coated) or aluminium. Plastic is sometimes used.
3. The size and shape of a computer case is usually determined by the form factor of the motherboard, since it is the largest component of most computers
4. Computer cases usually include sheet metal enclosures for a power supply unit and drive bays, as well as a rear panel that can accommodate peripheral connectors protruding from the motherboard and expansion slots.
5. Some computer cases include a biased switch (push-button) which connects to the motherboard.
6. The motherboard is usually screwed to the case along its largest face, which could be the bottom or the side of the case depending on the form factor and orientation.
7. Companies like In Win Development, Shuttle Inc. and AOpen have popularized small cases, for which FlexATX is the most common motherboard size
8. Tower cases have either a single side panel which may be removed in order to access the internal components or a large cover that saddles the chassis.
9. Case modding is the artistic styling of computer cases, often to draw attention to the use of advanced or unusual components.
10. Modded cases may also include internal lighting, custom paint, or liquid cooling systems. Some hobbyists build custom cases from raw materials like aluminum, steel, styrofoam, acrylic, or wood.