![]() Today, telephone numbers are about seven to ten digits long. In developing countries cell phones are used as a cheaper and faster way to connect the countryside to the network. The exchanges are connected together in a world-wide network. The telephones in one place are connected to a telephone exchange. This allows a computer to connect to other computer networks including the Internet. To use one, people pay with coins, a credit card or a prepaid card.Ĭomputers can use a machine called a modem or a Digital subscriber line router to talk to other computers over a telephone line. In most countries there are public payphones. Some mobile phones are able to make telephone calls using communications satellites instead of masts on the ground, which means people can make calls from anywhere in the world. The majority are smartphones, which can be used as computers. It has become common for people to carry mobile phones and in some places it is unusual to not have one. A telephone that can be carried around is called a mobile phone or cell phone. ![]() There are many different types of telephones. During the 20th century the machines that made the connections were automated. Later, telephone exchanges allowed connecting to other telephones. Early telephones were wired directly to each other and could only talk to the phone that they were connected to. Modern mobile phones use radio waves.Īlexander Graham Bell was the first person to patent the telephone, in 1876. Early telephones needed to be connected with wires which are called fixed or landline telephones. Using a telephone, two people who are in different places can talk to each other. Many telephones in the 21st century are electronic tools sending digital signals on wires or radio transmission. Originally, it was an electric tool sending analogue speech through wires. People use it to talk with people far away. ( July 2020)Ī telephone, also known as a phone, is a communication tool. You can help Wikipedia by reading Wikipedia:How to write Simple English pages, then simplifying the article. Long cord.The English used in this article or section may not be easy for everybody to understand. Handset L 20cm.Īge: Not suitable for children under 3 years old. Set includes: 8 handsets (4 red, 4 blue), 12 connectors, 3 x 3-metre lengths and 12 x 1-metre lengths of tubing. A great tool for communication and social skills and for extending language, they helped to encourage reluctant talkers." The phones were easy to build and simple to fit together, even for young children. "Bright and colourful, fun, both indoors and out! The Talking Tubes® caused great excitement and were used in a variety of ways: in dens, under tables, round corners and in the garden. TickiT® Talking Tubes® is a patented design, made from strong durable plastic making it easy to clean. Tubes can be buried underground to create secret communication devices. The tubes all have rubber ends so the handsets and connectors can easily be pushed into place and pulled apart to create new configurations. Your child will have so much fun talking to their friends through this innovative air powered device and learning how sound travels. ![]() Strong, hollow, flexible yellow tubing with handsets that plug into the ends allows children to pass a message to each other across multiple networks and distances between different rooms, in an outdoor space or between an indoor and outdoor environment. Part of our best-selling and award-winning Talking Tubes range, the TickiT® Talking Tubes Telephone Exchange allows your child to create an ultimate telecommunications system! It can be used both indoors and outdoors to develop your child's communication and interpersonal skills.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |