Data transmission protocols

Data transmission protocols

1. Environmental, a major cause for landfill rubbish is old technology, so called "technotrash". the production and use of technology consumes heavy amounts of resources for example fossil fuels.

2. Unequal Access. not everyone has the same level of access to information technology. this disadvantages those without access for example young people cant access school VLE or revision resources

3. online Behavior, the anonymity of online communication has lead to a problem with poor behavior for example trolling. this can have serious repercussions to the victim suicide and abuser legal. when communicating online it is important to follow good netiquette.

4. Email. STMP- transmit data from your email clients to your outgoing mail server. POP3, downloads emails from your mail server to your email client. IMAP- syncs emails between your mail server and your email client

5. Voice and Video calls over the internet SIP- establish the connection between sender and receiver. RTP- transmit data pockets along the connection. RTCP- sends control packets providing feedback on the quality of data delivery.

6. Web Pages, HTTP- establishes connection and transfer web pages between clients and server. HTTPS, a version of HTTP that uses SSL/TLS to encrypt data transfer.FTP- transfer any kind of files between computers over the internet.

7. secure Payment System. SET- communication protocol where card details go directly to merchant bank for authorisation.