If a 14-2 cable is run from the panel to the outlet, then a 15 amp circuit breaker is the largest that can be used to protect that circuit. If a 12-2 cable is run from the panel to the outlet, then a 20 amp circuit breaker is the largest that can be installed to protect the circuit. Support cable.
Types Of Keyboard. There are two major types of computer keyboards: Basic and Extended. The Basic keyboard contains 104 keys and is enough to perform all the functions that can be done on a Windows PC. The Extended keyboard may have additional keys and the design varies among the companies manufacturing them.
A computer keyboard is one of the primary input devices for a computer system. Many styles of keyboards exist, but a few common components of keyboards include a numeric keypad, for data entry, an alpha-numeric keyboard, for day-to-day typing, and function keys, for accessing system functions and program shortcuts.