5.URL:Uniform Resource Locator
-is a Uniform Resource Identifier (URI) that specifies where an identified resource is available and the mechanism for retrieving it. In popular usage and in many technical documents and verbal discussions it is often incorrectly used as a synonym for URI.^[1] The best-known example of the use of URLs is for the addresses of web pages on the World Wide Web, such as http://www.example.com/.
6.USB:Universal Serial Bus
- is a specification^[1] to establish communication between devices and a host controller (usually a personal computer), developed and invented by Ajay Bhatt while working for Intel.^[2][3] USB has effectively replaced a variety of interfaces such as serial and parallel ports.

USB can connect computer peripherals such as mice, keyboards, digital cameras, printers, personal media players, flash drives, Network Adapters, and external hard drives. For many of those devices, USB has become the standard connection method.

USB was designed for personal computers, but it has become commonplace on other devices such as smartphones, PDAs and video game consoles, and as a power cord. As of 2008^[update], there are about 2 billion USB devices sold per year, and approximately 6 billion total sold to date.^[4]