[High School Information I Basic Course] 4 chapters of videos (21 in total) compiled into one video 🎉 A professional IT instructor carefully explained the basics from networks to information security, databases, and even data analysis according to high school textbooks! 📌 [Apology] ▼ Regarding the board notes in "1-1 Network Basics" The explanation of the network says "communication line", but the correct word is "communication network". I'm sorry for writing a typo. Thank you to @user-dh2be3bs5v for pointing it out. ▼ Regarding "2-3 Encryption Mechanism", in the video (from 2:02:28) I wrote "private key" for the name of the key used in the shared key encryption method, but here I should have explained it as "shared key". I'm sorry for talking about inaccurate content. Thank you to @user-em2wg3xz2r and @arapon-o8m for pointing it out. ⭐ Learn IT for free and have fun! I make videos with that feeling in mind 😁 → Please support me by subscribing, liking, and sharing with others ✨✨ 🌸Subscribe to my channel here! https://www.youtube.com/c/SekaChan?su... 👀Related sites and videos here! ▼Class notes and complete strategy sheet (PDF teaching materials) https://sekachan.net/info1-basic/ ▼[High school information I] 2-1-2 Amount of information • Understand the concept of bits, bytes, and amount of information [Information I Basics] 2-1-2 Amount of information ▼[High school information I] 2-1-3 Decimal and binary numbers • How to convert between decimal and binary numbers [Information I Basics] 2-1-3 Decimal and binary numbers ▼Coaxial cable: Oyaide Electric Online Shop https://shop.oyaide.com/products/p-55... ▼Ethernet cable: @IT Cable & Connector Picture Book https://atmarkit.itmedia.co.jp/ait/ar... ▼Share of web browsers and OS in February 2023 https://taisy0.com/2023/03/01/169117.... ▼Internet Safety and Security Handbook: Cabinet Secretariat's National Center of Incident Readiness and Strategy for Cybersecurityhttps://security-portal.nisc.go.jp/gu... ▼DB-Engines Ranking https://db-engines.com/en/ranking ▼e-Stat One-stop portal for government statisticshttps://www.e-stat.go.jp/ ▼Statistics Bureau, Ministry of Internal Affairs and Communications 47 prefecture rankingshttps://www.stat.go.jp/data/shakai/20... ▼Japan Meteorological Agency Past data searchhttps://www.data.jma.go.jp/obd/stats/... ▼Ministry of Internal Affairs and Communications Survey on information and communications media usage time and information behaviorhttps://www.soumu.go.jp/iicp/research... ▼e-Stat Basic Survey of Social Life 2021https://www.e-stat.go.jp/stat-search/... ▼e-Stat Physical Fitness and Athletic Ability Surveyhttps://www.e-stat.go.jp/stat-search/... ▼AI text mining: User Localhttps://textmining.userlocal.jp/ ▼Information I General Review Mind Map • [All you need is this one] General review of all areas of Information I with Mind Maps ▼Information I Basic Course • [Common Test Preparation] High School Information I Basic Course (all areas) ▼Information I Common Test Preparation Course • [Achieve 80% on the Common Test] Information I Practice Course 💡Chapter 00:00 Opening 00:37 1-1 Network Basics ( • Understand what a network is and the differences between LAN, WAN, and the Internet [Information... ) 10:02 1-2 Wired LAN ( • Understand what a network is and the differences between LAN, WAN, and the Internet [Information... ) 19:13 1-3 Wireless LAN ( • Explain the differences between Wi-Fi and Bluetooth and the major standards for wireless LAN [Information... ) 30:15 1-4 TCP/IP 4-layer model ( • Understand the basics of what the TCP/IP hierarchical model is [Information I Basics] 4-4 T... ) 43:07 1-5 IP Address ( • [Must see] A thorough explanation of what an IP address is and how to check and calculate it [Information I Basics] 4-5... ) 56:56 1-6 Routing ( • [Professional instructors teach] How routing works and how to read a routing table [Information... ) 1:10:08 1-7 Reliability of communications ( • [Diagram] An easy-to-understand explanation of parity bit error detection and the mechanism of TCP [Information I... ) 1:21:12 1-8 How the web works ( • [For beginners] Six keywords that help you understand how the Internet works [Information I Basics] 4... ) 1:30:37 1-9 URLs and DNS ( • [Behind the scenes] Let's understand what URLs, domain names, and DNS are [Information I Basics]... ) 1:42:06 2-1 Information security ( • [Introduction] Let's understand the three elements of information security [Information I Basics] 4-10 Information security... ) 1:47:52 2-2 User authentication and access control ( • The fundamental differences between passwords, PIN codes, and SMS authentication, and how firewalls work... ) 1:58:32 2-3 How Encryption Works (• An easy-to-understand explanation of how symmetric key cryptography and public key cryptography work [Information I Basics] 4-... ) 2:08:41 2-4 Digital Signatures and Electronic Authentication (• An easy-to-understand explanation of what digital signatures and electronic authentication are and how they work [Information I Basics] 4-... ) 2:21:00 3-1 Information Systems (• An explanation of what information systems are and familiar concrete examples! [Information I Basics] 4-14 Information Systems ) 2:27:24 3-2 Database Basics ( • Basic knowledge of databases and DBMS functions [Information I Basics] 4-15 Database Basics ) 2:36:12 3-3 Data Models ( • What are relational models and NoSQL? [Information I Basics] 4-16 Data Models ) 2:44:46 4-1 Data Collection and Organizing ( • How to remember scale levels and use open data [Information I Basics] 4-17 Data Collection and Organizing ) 2:54:20 4-2 Representative values, variance, and standard deviation ( • How to calculate the mean, median, and mode and how to use them differently [Information I Basics] 4-18 Representative values ​​and variance... ) 3:06:28 4-3 Data Visualization ( • 8 types of graphs that should be used differently in data analysis [Information I Basics] 4-19 Data Visualization ) 3:15:58 4-4 Correlation and Regression Analysis ( • What are correlation and regression analysis? How to calculate them in Excel [Information I Basics] 4-20 Correlation... ) 3:28:35 4-5 Text Mining (• AI analysis of comments revealed real thoughts and it was interesting [Information I Basics] 4-... ) Correction: 0:01:55 [Incorrect: communication line, correct: communication network]. Sorry for the mistake! Correction: 2:02:28 I should have explained this as [shared key] instead of [private key]. Please see the description or comment section 📌🙋‍♂️Profile [Seka-chan Sugawara] ・Graduated from the Graduate School of Information Science and Engineering, Tokyo Institute of Technology ・Planned and conducted IT and programming seminars as a cram school instructor and IT training instructor for 5 and a half years as an undergraduate and graduate student ・Received the "Instructor of the Year (Japan's highest satisfaction)" and "Java Instructor Award" from Oracle for 4 consecutive years I like the moment when someone says "I get it!" and when they feel that studying is fun. I started YouTube because I wanted to spread free learning (a place where you can learn for free). Let's have fun studying and growing together! 📳X (old Twitter) https://x.com/SekaChanIT 🎵 Sound source provided by DOVA-SYNDROME https://dova-s.jp/ *Some videos may not be used #Information I #Common Test #Seka Chan's Information I Basic Course #Information Science #High School Information Science #Basic Information Technology Engineer #IT Passport