Control boards are sued to control other circuitry. They provide power and send signals to the other circuitry during operation. There may even be a CPU on the board.
The main purpose of using switch boards is to save cost and time. So mostly in offices now a days used switched board.
Used on exterior decks, the boards are treated with chemicals and pressurized to keep them from rotting and protection from insects eating the boards.
No, sound boards specifically control sound. Lighting consoles(aka light boards) control the lights. Most of these are more computer based than sound boards.
No. It is possible to program them for that purpose, but they have many more uses that have nothing to do with control.
CRC is used for this purpose. The control field is HEC (header error control).
Expansion Boards
Circuit boards are not dangerous to use and they are not some type of skateboard. There are tons of varieties of circuit boards for different things you are trying to control. You'd need to ask a more specific answer since there are so many types.
To make plaster boards
It gives boundaries for the players and the puck.
Cement board tape is used to reinforce the seams between tile backer boards, providing added strength and preventing cracks in the tile installation.
Batter boards are used in construction to establish the layout and dimensions of a building's foundation. They help ensure that the foundation is properly aligned and level before any further construction work is done.
Advantages Circuits are used for a number of purposes. They are used in industrial control circuit boards and in devices such as battery chargers, neon modules and power supplies.