Difficult with physical media for large groups. Content Very good for formatted text and photographs. Pretty good for diagrams and illustrations. Relatively weak for video, audio, equations, complex notation. Requires more of the reader.
Production Required effort varies with level of sophistication.
Many useful tasks can be done quickly from the desktop. Accessible to many students. Distribution Virtually every computer in the world. The client makes requests and receives information. The server responds to requests and transmits information.