Ohne Titel

Byte

• In communicating and telecommunications, a bite is unit of digital communication which commonly consists of eight bits.

USB (Universal serial bus)

• A higher speed serial connection standard that supports low-speed devices (e.g: mice, keyboards, scanners) and higher-speed devices (e.g: digital cameras).

Client side processing

• Example: Between a webpage and a code.
• Advantages: It can occur directly on a users computer.
• Disadvantages: Different browsers produce different scripts.

Server side processing

• Example: A submission of a search through an engine.
• Advantages: Complex code may run more efficiently, as it does not have to be downloaded on to the user’s computer.
• Disadvantages: The exchange of data over the network may present security risks.

Bi- directional transmission

• Bi-directional transmission has several meanings within data communication, but it
• is essentially about transmitting in both directions. Most recently the term has been
• applied to fi bre optics. Using the current technology, light passes in one direction
• only, so you have to add extra fi bres to the bundle to carry a signal in the opposite
• direction.

Packet Switching

• Packet switching is the process of data being broken into packets before being sent through a network and then reassembled at the other end. This method is used on the internet.

Simplex

• Sends data in one direction only. A radio broadcast is a good
• example of simplex transmission.

Half Duplex

• Allows two-way transmissions but the devices don’t transmit
• at the same time. A system being used to monitor and control manufacturing processes
• can use half-duplex transmissions. It will send a message to the control computer,
• which will respond with new settings, but they both cannot send messages at the same time. Some network systems use half-duplex to maximise bandwidth.

Full Duplex

• Allows two-way communication at the same time.
• The telephone system, land or mobile, is an example of a full duplex system.