Internet Service Providers Explained | Generated by AI
Question: What are ISPs in networking?
Answer:
In computer networking, ISP stands for Internet Service Provider. An ISP is a company or organization that provides individuals, businesses, and other entities with access to the internet.
Key Functions of an ISP:
- Internet Connectivity: ISPs connect customers to the global internet through various technologies such as DSL, cable, fiber-optic, satellite, or wireless (e.g., 5G).
- IP Address Allocation: They assign IP addresses to customer devices, enabling communication over the internet.
- Additional Services: Many ISPs also offer email accounts, web hosting, domain registration, and security features (e.g., firewalls or antivirus).
Types of ISPs:
- Access Providers: Provide direct internet connection (e.g., Comcast, AT&T, Verizon).
- Transit Providers: Sell bandwidth to smaller ISPs.
- Virtual ISPs: Lease infrastructure from larger providers to offer services under their own brand.
ISPs act as the “gateway” between end-users and the broader internet backbone, managing traffic routing and ensuring connectivity.