Traditional Culture Encyclopedia - Traditional customs - Letter Fax Email Skype Similarities and Differences

Letter Fax Email Skype Similarities and Differences

A letter is a traditional form of communication where a message is delivered by mailing a paper letter. Fax is based on the PSTN (telephone switched network) and the Internet fax storage and forwarding, also known as electronic fax. E-post, it is a kind of electronic means to provide information exchange of communication. skype does not need a computer, completely and ordinary telephone use. Direct and broadband connection, built-in skype, as long as there is a broadband place can be used, suitable for office, home use.

***Same point: are used for letters, items of information transmission. Different nature: e-mail is a kind of electronic means of communication to provide information exchange, is the most widely used Internet services. Traditional mailboxes are set up by postal authorities in the roadside and public **** place to accept the public posting of mail to receive the mail set up, especially public mailboxes.

SMTP for email delivery is a protocol that maintains the order of transmission and specifies what work is to be done between mail servers, with the goal of delivering email reliably and efficiently.SMTP is independent of the delivery subsystem and is capable of relaying mail. Mailboxes embody a form of identification and a sign of ownership.

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