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.
The piano (or pianoforte) is a musical instrument with a keyboard. A normal piano has 88 keys. Pianos use the keys to move hammers that hit strings inside, making a sound. Pianos come in two basic types: grand pianos and upright pianos. The piano has been an extremely popular instrument in Western classical music since the late 18th century. A person who plays the piano is called a pianist.