An ISP, or Internet Service Provider, is a company that provides individuals and businesses with access to the internet. They offer various types of connections, such as DSL, cable, or fiber-optic, allowing users to browse websites, stream videos, and send emails. ISPs play a crucial role in connecting people to the vast resources available online. In addition to internet access, many ISPs also offer additional services like web hosting, email accounts, and technical support. Choosing the right ISP can depend on factors like speed, reliability, and customer service, making it important for users to research their options before signing up.