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Computing Connectivity Methods

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What are the various concepts of computing connectivity methods?

  • Fixed Broadband Internet.
  • Mobile Internet.
  • Virtual Private Network (VPN)
  • Dial-up networks.
  • Local Area Network (LAN)
  • Direct networks.

LAN MAN Voice Satellite

Methods and their characteristics

Network Hub

Network Hub is a networking device which is used to connect multiple network hosts. A network hub is also used to do data transfer. The data is transferred in terms of packets on a computer network. So when a host sends a data packet to a network hub, the hub copies the data packet to all of its ports connected to. Like this, all the ports know about the data and the port for whom the packet is intended, claims the packet. However, because of its working mechanism, a hub is not so secure and safe. Moreover, copying the data packets on all the interfaces or ports makes it slower and more congested which led to the use of network switch.

Network Switch

Like a hub, a switch also works at the layer of LAN (Local Area Network) but you can say that a switch is more intelligent than a hub. While hub just does the work of data forwarding, a switch does ‘filter and forwarding’ which is a more intelligent way of dealing with the data packets. So, when a packet is received at one of the interfaces of the switch, it filters the packet and sends only to the interface of the intended receiver. For this purpose, a switch also maintains a CAM (Content Addressable Memory) table and has its own system configuration and memory. CAM table is also called as forwarding table or forwarding information base (FIB).


A Modem is somewhat a more interesting network device in our daily life. So if you have noticed around, you get an internet connection through a wire (there are different types of wires) to your house. This wire is used to carry our internet data outside to the internet world. However, our computer generates binary data or digital data in forms of 1s and 0s and on the other hand, a wire carries an analogue signal and that’s where a modem comes in. A modem stands for (Modulator Demodulator). That means it modulates and demodulates the signal between the digital data of a computer and the analogue signal of a telephone line.

Network Router

A router is a network device which is responsible for routing traffic from one to another network. These two networks could be a private company network to a public network. You can think of a router as a traffic police who directs different network traffic to different directions.


If a router connects two different types of networks, then a bridge connects two subnetworks as a part of the same network. You can think of two different labs or two different floors connected by a bridge.


A repeater is an electronic device that amplifies the signal it receives. In other terms, you can think of repeater as a device which receives a signal and retransmits it at a higher level or higher power so that the signal can cover longer distances. For example, inside a college campus, the hostels might be far away from the main college where the ISP line comes in. If the college authority wants to pull a wire in between the hostels and main campus, they will have to use repeaters if the distance is much because different types of cables have limitations in terms of the distances they can carry the data for.

When these network devices take a particular configurational shape on a network, their configuration gets a particular name and the whole formation is called Network topology. In certain circumstances when we add some more network devices to a network topology, it’s called Daisy chaining.

Explain the key characteristics of the internet and how they link to the devices:

  1. Its global nature;
  2. Interactivity;
  3. Its potential to shift the balance of power in the offline world;
  4. Accessibility;
  5. Anonymity;
  6. Its facilitation of republication;
  7. The prominence of intermediaries;
  8. Its reliance on hyperlinks/hypertext;
  9. Its long-term impact — the use of permanent archives;
  10. Its multimedia character;
  11. Its temporal indeterminacy.

Characteristics of WAN

  • The types of transmission media over which they can operate
  • The transport technique they use to transmit data over the network (that is, broadband or baseband)
  • The access method, which is involved in determining who gets to use the network and when they get to use it
  • The topology, or mapping, of the network (that is, the physical and logical connections between the nodes on the network)
  • Lower bandwidth compared to LANs.
  • Typically interconnect multiple LANs.
  • Exist in an unlimited geographic area.
  • Some resources, usually data communication equipment, is managed externally to organisations using the WAN

Characteristics of MAN

  • The network size falls intermediate between LANs and WANs. A MAN typically covers an area of between 5 and 50 km diameter. Many MANs cover an area the size of a city, although in some cases MANs may be as small as a group of buildings or as large as the North of Scotland.
  • A MAN (like a WAN) is not generally owned by a single organisation. The MAN, its communications links and equipment are generally owned by either a consortium of users or by a single network provider who sells the service to the users. This level of service provided to each user must therefore be negotiated with the MAN operator, and some performance guarantees are normally specified.
  • A MAN often acts as a high speed network to allow sharing of regional resources (similar to a large LAN). It is also frequently used to provide a shared connection to other networks using a link to a WAN. Present your findings, either as a report/presentation of mind map/diagram.

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Computing Connectivity Methods. (2018, October 26). GradesFixer. Retrieved March 7, 2021, from
“Computing Connectivity Methods.” GradesFixer, 26 Oct. 2018,
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