Isp notes

Isp notes

• 1.
  ISP (Internet Service Provider)
• 2.
  Content • Overview ofISP • Types of ISPs • Examples of ISP • Factors to Consider when choosing ISP • Services of ISP • Types of link to ISP • Equipment for connecting to ISP
• 3.
  Overview Internet Service Providers(ISP’s), which first began to emerge in the late 1980s and early 1990s, are the businesses and organizations that provide users with Internet access and related services. These providers connect customers to customers of other service providers by way of networks. Often, Internet Service Providers (also called Internet Access Providers) are companies that provide telecommunications services including data communications access and telephone connection. The majority of telephone companies now function as Internet Access Providers as well. ISP’s may be commercial, non-profit, privately owned or community- owned.
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  Types of ISPs AccessISPs — Employ a variety of technologies to facilitate consumers’ connection to their network. These technologies may include broadband or dialup. Always-on types of broadband connections comprise cable, fiber optic service (FiOS), DSL (Digital Subscriber Line) and satellite. A number of access providers also provide email and hosting services. Mailbox ISPs — Offer email mailbox hosting services and email servers to send, receive and store email. Many mailbox ISPs are also access providers. Hosting ISPs — Offer email, File Transfer Protocol (FTP), web-hosting services, virtual machines, clouds and physical servers. Transit ISPs —Provide large amounts of bandwidth needed to connect hosting ISPs and access ISPs together. Virtual ISPs (VISP) — Purchase services from other ISPs to allow customers Internet access. Free ISPs (free nets) – Provide service free of charge and often display advertisements while users are connected.
• 5.
  Examples of ISPs •MTN • Airtel • UTL • Infocom • Smile • Roke Telecom • etc
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  Factors to considerwhile choosing ISP • Bandwidth (speed) • Cost (setup and service fee) • Availability (reach) • Reliability (down time) • Convenience (mobility, etc)
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  Services of ISPs •Internet Access • Domain Name Registration • Domain Hosting • Dial-up Access • Leased Line Access
• 8.
  Types of linkto ISP 1. Wireless Radio frequency bands are used in place of telephone or cable networks. One of the greatest advantages of wireless Internet connections is the “always-on” connection that can be accessed from any location that falls within network coverage. Wireless connections are made possible through the use of a modem, which picks up Internet signals and sends them to other devices.
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  Types of linkto ISP 2. Mobile Phones Many cell phone and smart phone providers offer voice plans with Internet access. Mobile Internet connections provide good speeds and allow you to access the Internet on the go. 3. Hotspots Hotspots are sites that offer Internet access over a wireless local area network (WLAN) by way of a router that then connects to an Internet service provider. Hotspots utilize Wi-Fi technology, which allows electronic devices to connect to the Internet or exchange data wirelessly through radio waves.
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  Types of linkto ISP 4. Broadband This high-speed Internet connection is provided through either cable or telephone companies. One of the fastest options available, broadband Internet uses multiple data channels to send large quantities of information. The term broadband is shorthand for broad bandwidth. Broadband Internet connections such as DSL (Digital Subscriber Line) and cable are considered high-bandwidth connections.
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  Types of linkto ISP • Satellite • In certain areas where broadband connection is not yet offered, a satellite Internet option may be available. Similar to wireless access, satellite connection utilizes a modem.
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  Equipment for connectingto ISP – Mobile phone – Modem – Satellite receiver – Telephone line (land line) – Fiber optics link