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edX

Introduction to Computer Science and Programming

Tokyo Institute of Technology via edX

Overview

Do you want to learn more about data and to get a basic programming experience? If yes, this is the right course for you to start!

“Big data”, “data science”, “data-mining” and “artificial intelligence” are all popular terms that are often encountered nowadays in the academic and in business worlds.

Computer Science is a field where the usage of computers and “computations” have continuously evolved. As computational power increases, computation becomes an indispensable tool for solving complex problems and making predictions. We are now able to “compute” various things from DNA sequencing to aerodynamics simulations and weather forecasting.

In this course, you will learn the essence of computer science. You will obtain an overview of cutting-edge computer science as well as learn the basics and introductory level knowledge of computer science, while experiencing, designing and writing your own simple programs. The video lectures in this course are delivered in English accompanied by English transcripts. This English version comprised of 5 units is the revised original Japanese course previously released with same topic.

We will start by learning more about the notion of computation and data and see how things work inside a computer. Before jumping into advanced topics like encryption and cryptanalysis, we will discover important notions like "arrays", "characters" and "strings" and we will know more about functions and subroutines throughout the lectures. Along the way we will practice with exercises to have a hands-on experience and deeper understanding of the explained notions. All exercises have files that can be downloaded and used. A detailed explanation about setting up the environment to run the programs using the language Ruby is provided at the beginning of the course.

By the end of this course you will be able to write your own programs for encryption and decryption of English texts. The course concludes with a general overview of the recent progress and research trends in the computer science field. This last part covers topics discussing the nature of computation as well as applications of computation in our modern society such as simulations, data mining and artificial intelligence AI.

Syllabus

Introduction

Who is Professor Watanabe?
Introduction to Computer Science
Instructions for Users

Unit 1: What is Computation?

Learning Objectives

1.1 What is computation?

1.2 Data is Numbers

1.3 Inside the Computer

1.4 Programming with Ruby
1.5 Time to Practice 1
Quiz 1

Unit 2: What is Programming? (Part 1) Arrays

Learning Objectives

2.1 Arrays, Basic Concepts

2.2 How to Use arrays

2.3 Time to Practice 2

Quiz 2

Unit 3: What is Programming? (Part 2) Characters and Strings

Learning Objectives

3.1 Characters and Strings

3.2 Caesar Encryption

3.3 Time to Practice3

Quiz 3

Unit 4: What is Programming? (Part 3) Functions and Subroutines

4.1 Functions and Subroutines

4.2 Cryptanalysis

4.3 Time to Practice 4

4.4 Modern Encryption

Quiz 4

Unit 5: Summary and Appendix (Introduction to Research on Computation)

Learning Objectives

5.1 Brief Summary of this course

5.2 Appendix 1.1: On the Nature of Computation, Computability

5.3 Appendix 1.2: On the Nature of Computation, P ≠ NP Conjecture

5.4 Appendix 2.1: Applications of Computation, Simulation

5.5 Appendix 2.2: Applications of Computation, Data Mining

5.6 Appendix 2.3: Applications of Computation, AI (Artificial Intelligence)

Quiz 5

Taught by

Osamu Watanabe

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