Intranet:A company-wide network closed to public access, which uses internet-type technology is called intranet. An intranet is a private network that can only be accessed by authorized users. The prefix "intra" means "internal" and therefore implies an intranet is designed for internal communications. "Inter" (as on the Internet) means "between" or "among. "Some intranets are local area network (LAN), wide area network (WAN), etc. World Wide Web:World Wide Web or www is a collection of data stored and shared in the digital space. This collection of information from and connect into websites and divides into web pages. Tim Bernes-Lee in the CERN laboratory invented it in 1989. The World Wide Web is accessible anywhere as long as theres an internet connection. You can use a wireless router, Wi-Fi, or Ethernet cable to access www through the internet. MODEM:A modem (modulator-demodulator) is a device that modulates an analogue signal to digital information. It also decodes carrier signals to demodulates the transmitted information. Among various types of MODEM, Dial-up MODEM enables a computer to communicate over telephone lines. Therefore, ?Statement I is incorrect but Statement II is true.