16. Communications

A stamp is a small piece of paper, typically with adhesive on one side, that is used to pay for the delivery of mail. It is usually attached to an envelope or package and serves as proof that postage has been paid. Stamps often feature images, designs, or text, and their value is marked on them, indicating the amount of postage they cover. Stamps are commonly available for purchase at post offices and can vary in price depending on the size, weight, and destination of the mail. They are essential for mailing items through the postal system.

Email is a system used for sending and receiving messages over the Internet. It allows users to exchange text, files, and other types of information quickly and efficiently between computers, smartphones, and other devices. Email works by using electronic addresses, often referred to as email addresses, which identify the sender and recipient. When a message is sent, it is stored on a server and then delivered to the recipient’s inbox, where it can be read or replied to. Email is widely used for both personal and professional communication due to its speed, convenience, and cost-effectiveness.

The Internet is a global network that connects millions of computers and devices, allowing them to communicate with each other and share information. It enables users to access websites, send emails, watch videos, play games, and use various online services. The Internet relies on a system of servers, routers, and protocols to ensure that data travels efficiently between devices across the world. It has become an essential tool for communication, education, business, and entertainment, shaping modern life in countless ways.

A screen is the flat surface on a device, such as a television, computer, or smartphone, where images, videos, and text are displayed. It uses light or pixels to create pictures that users can see. Screens come in different sizes and types and can be used for a variety of purposes, including entertainment, communication, and work. The quality of a screen is often determined by its resolution, brightness, and color accuracy, all of which affect how clear and vibrant the images or videos appear.

A text message is a short written communication sent from one phone to another. It typically consists of simple text, though it can also include emojis or links. Text messages are usually sent through SMS (Short Message Service) or MMS (Multimedia Messaging Service), allowing users to send information quickly and efficiently. Text messaging is popular for both personal and business communication, as it is fast, convenient, and does not require the recipient to be available for a phone call. Many mobile phones and messaging apps also allow group texting, enabling multiple people to receive and reply to messages.