A nerve block is an anesthetic or anti-inflammatory injection targeted toward a certain nerve or group of nerves to treat pain. The purpose of the injection is to turn off a pain signal coming from a specific location in the body or to decrease inflammation in that area.
- Components, Definition & Examples. Computer hardware is the collection of physical parts of a computer system. This includes the computer case, monitor, keyboard, and mouse. It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others. Computer hardware is what you can physically touch.
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.