With the fast development of technology, information is now accesible almost all ways possible. From radio, print and television, information technology has now gone to a new level. Gathering information could now accessed through the computers especially through the internet. Along with the progress, teaching has also developed using computer technology. The Computer-Aided Instruction or CAI is designed to create modules and make tutorials through multimedia. Examples of CAI's are tutorials, simulations, and interactive cd's.

According to Davis, (et al, licensee BioMed Central Ltd.) computer based teaching sessions have advantages over lectures: they are more flexible for doctors to fit into their work and learning programme; there is the ability to pause or revisit areas of the session; they have more learner led interaction; hyperlinks and additional materials can be provided instantly for the learner; they address the issue of standardizing the quality of teaching materials across a region; and they deal with the cost and logistical difficulties of specialist lecturers teaching large numbers of students in different locations. Existing studies of knowledge and attitudinal gain by computer based teaching have mainly been at undergraduate level. According to their study, they feel computer based teaching and learning is as effective as typical lecture based teaching sessions for educating postgraduates in EBM and systematic reviews.

CAI also allow teachers to provide computer technology for instructional
support and workplace simulation. They use computer assisted instruction as a supplement to, not a replacement for, traditional teacher-directed instruction. Through the use of computer and word processing software, they are able to foster the development of writing skills of the students. It also provide high-interest drill and practice programs to support learning, especially
for students requiring skill remediation. Teachers could also provide computer-assisted instructional activities for chronically misbehaving students and students with negative attitude toward traditional learning.

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