1. บริการต่างๆบนอินเทอร์เน็ต
เสนอ
มิส เขมจิรา ปลงไสว
จัดทาโดย
นางสาว เมลาณี เลาเฟอร์
ชั้น ม.5/5 เลขที่ 23

2. e-mail since ca. 1993,[2] is a method of exchanging
digital messages from an author to one or more
recipients. Modern email operates across the Internet or
other computer networks. Some early email systems
required that the author and the recipient both
be online at the same time, in common with instant
messaging. Today's email systems are based on
a store-and-forward model
Email

3. Email servers accept, forward, deliver, and store
messages. Neither the users nor their computers are
required to be online simultaneously; they need connect
only briefly, typically to a mail server, for as long as it
takes to send or receive messages.

5. A social network is a social structure made up of a set
of social actors (such as individuals or organizations) and a set
of the dyadic ties between these actors. The social network
perspective provides a set of methods for analyzing the
structure of whole social entities as well as a variety of theories
explaining the patterns observed in these structures.[1] The study
of these structures uses social network analysis to identify local
and global patterns, locate influential entities, and examine
network dynamics.
Social