PowerPoint Presentation

What is electricity ? A device is something people make to do a useful task . Many devices use electricity.

Inside the Computer. There is an electrical device inside the computer. it is called a processor..

Inside a computer. A computer holds lots of information. For example, numbers and pictures. It holds the information using electricity..

Output devices. You cannot look at the electricity inside a computer. How can you find out what is inside the computer?.

Output you can see. The screen or monitor of a computer is an output device. It takes information from the processor. It turns it into colors and shapes..

Other types of output. There are other types of output..

A 3d Printer makes Sold objects , for example , a 3d printer can stick blobs of plastic together.

The user. A person who uses a computer is called the user. The user tells the computer what to do..

Input devices. The answer is to use an input device. An input device takes a user's inputs. It turns them into electrical signals that the computer can understand..

Input devices. Mouse. A mouse can roll about on the desk. The mouse sends a signal to the computer. It tells the computer when it moves. A pointer on the screen moves about..

Touch Screen. Some devices have a touch screen , a touch screen is used for input and output it shows you choices on the screen, you touch the screen to make a choice.

Other Input Devices. There are other types of Input A microphone Turns sound into electrical Signals.