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Princess Rin Rin

Author:National Institute of Informatics, Information Security Policy Promotion Committee for Higher Education Institutes
Affiliation:National Institute of Informatics, Information Security Policy Promotion Committee for Higher Education Institutes
Hello, everyone. This is Kitsuregawa of National Institute of Informatics. These days, in addition to TV, radio, newspapers, and books, we can easily access to various information from the vastly spreading use of the internet and mobile phones. But on the other hand, trouble seems to increase. There are uncountable numbers of problems such as; computer virus, hacking, internet communication problem, unauthorized disclosure of personal information, phishing scams, and bank transfer scams, involving people from children to adults. There are rules to be observed and measures to be taken in the society we live. Princess Rin Rin will introduce those norms and countermeasures. To tell you the truth, I invited Princess Rin Rin from the future world. Princess Rin Rin lives in is a terrible world with computer viruses widely spreading, no rules in using the computers, tons of false information, and information crimes frequently occurring. We must learn from Princess Rin Rin now to make our future a brighter one. If we start now, it is possible to create the world without these problems!

How Computers Work II "Computer Structure Part"

Author:Yoichi Okabe
Affiliation:The Open University of Japan
These days, people are using home appliances without knowing its principles. The aim of this course is to let people understand at least the principles of how computers work and its operating principles. The explanation may be in considerable detail, so that this course may be somewhat challenging for beginners. On the contrary, this course includes enough information for learners to design a computer. Do not get upset if you cannot understand the contents. Let's start with learning the outline.

How Computers Work I "Theory Circuit Part"

Author:Yoichi Okabe
Affiliation:The Open University of Japan
These days, people are using home appliances without knowing its principles. The aim of this course is to let people understand at least the principles of how computers work and its operating principles. The explanation may be in considerable detail, so that this course may be somewhat challenging for beginners. On the contrary, this course includes enough information for learners to design a computer. Do not get upset if you cannot understand the contents. Let's start with learning the outline.

Introduction to Information Network I


Author:Shinji Hioki
Affiliation:Tezukayama University
The internet has now grown to be a worldwide network. For example, from small computers such as personal computers to large-scale, powerful computers such as servers are all connected to the internet. Also, we are at the age where mobile phones and general phones are attached to the network. Nowadays, even home appliances connected to the internet are gradually increasing. This course is aimed at understanding the basics of the information network.