Types of connections...

Optical, scart, VGA, USB, HDMI, SD/media slot, Firewire, LineIN/LineOUT

Wireless connections

inferred connections

Definition: Infrared technology allows computing devices to communicate via short-range wireless signals. With infrared, computers can transfer files and other digital data bidirectionally. The infrared transmission technology used in computers is similar to that used in consumer product remote control units.

Type of connection: Data.

Advantages:Low power requirements: therefore ideal for laptops, telephones, personal digital assistants

Low circuitry costs: $2-$5 for the entire coding/decoding circuitry
Simple circuitry: no special or proprietary hardware is required, can be incorporated into the integrated circuit of a product
Higher security: directional of the beam helps ensure that data isn't leaked or spilled to nearby devices as it's transmitted

Disadvantages:It needs a direct line of sight between the transmitter and receiver For example, it doesn't work through walls or doors.


Definition:A popular wireless personal area network (WPAN) for short-range transmission of digital voice and data. Using omnidirectional radio waves, Bluetooth transmits through walls and other non-metal barriers. Although the term is practically synonymous with cellphone headsets and in-vehicle, hands-free telephony, Bluetooth is also used in myriad applications, including keyboards, mice and game controllers
Type of connection: Audio, Data, video

Advantages: There are many advantages of using Bluetooth wireless technology. The most important is the fact that any two devices can be connected with each other without the use of any cables or wires.

  • Bluetooth technology cannot be used for Internet connections due to its restricted transfer rate.
  • Since Bluetooth technology releases larger range and data lines frequency, it gets more exposed to attacks for example interceptions and tapping. As long as new versions are coming, you don’t need to worry about this point.
  • Bluetooth technology drains battery life, and this mostly happens when you use it on your mobile phones. It consumes large amount of battery life in short period of time and if anyone leaves it switched ON for a good amount of time, the battery life will be dead in no time. So you can’t keep it switched ON forever.


definition: The word wireless is dictionary defined as "having no wires". In networking terminology, wireless is the term used to describe any computer network where there is no physical wired connection between sender and receiver, but rather the network is connected by radio waves and/or microwaves to maintain communications


  • Flexible if there is ad-hoc situation when additional workstation was required.
  • Implementation cost is cheaper than wired network.
  • Ideal for the non-reachable places such as across river or mountain or rural area.
  • Ideal for temporary network setups.
  • Disadvantages:
  • Lower speed compared to wired network. (of course!)
  • Less secure because hacker's laptop can act as Access Point. If you connected to their laptop, they'll read all your information (username, password.. bla..bla..bla..).
  • More complex to configure than wired network.
  • Affected by surrounding. E.g: walls (blocking), microwave oven (interference), far distance (attenuation)