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.
For example, the computer monitor used to view this text or the mouse used to navigate Diffen is considered computer hardware. Software is a program, such as an operating system or a web browser, that is able to instruct a computer's hardware to perform a specific task. Unlike hardware, software has no physical form.