Summary of CHAPTER 3

Chapter 3 contains the history of the computers which was developed nowadays. From past to present. We will know, the year when the invention was known and the inventor who made the useful calculating machine. It also contains the different types of computers and their features. And we could know the appropriate computer for different users. The next topic helps us to learn the different factors that can affect the efficiency of the computer and the health risks it can give to the users. Chapter 3 also contains the different hardwares that make up a computer, the software components of a computer and the peopleware which a role that people play as one of the components in creating output through computers.