A stock market, equity market or share market is the aggregation of buyers and sellers (a loose network of economic transactions, not a physical facility or discrete entity) of stocks (also called shares), which represent ownership claims on businesses; these may include securities listed on a public stock exchange as well as those only traded ...
Redundancy is a system design in which a component is duplicated so if it fails there will be a backup. Redundancy has a negative connotation when the duplication is unnecessary or is simply the result of poor planning.
Basic Elements of a Computer System. A computer system is an interconnected system of components that transmit electronic information between them to accomplish a task given to the computer. Computer systems require several critical components to function, all of equal importance. The hardware components of the computer are the parts you can see and touch.