Capturing the interest of viewers is a first priority item among teachers and other professionals who use media in their presentations. PowerPoint, one of the growing number of PC slide programs becoming available, is one more tool that can be used to achieve this goal. While this program was (…)
Computer viruses and trojan horse programs are computer programs that spread from computer to computer, sometimes (but not always) causing damage to data. Since the people who spread them are usually unaware that they are doing so, computer viruses pose a threat to those who use computers. This (…)
Over the years, a great deal of research has been devoted to the study of the cost effectiveness of media. This article is an attempt to summarize some of the research as found in the books and articles listed in the references.