Dec 23, 2022Hard Topics for DaeyeonExplain what is VPN A virtual private network (VPN) encrypts your internet traffic and then routes it through your VPN provider’s server before connecting to an internet service in order to hide your identity and activities. VPNs can be used to bypass geographic restrictions and hide your IP address. Identify…2 min read2 min read
Jul 13, 2022iB CS Unit 3 — NetworkingServer — a computer on a network that provides a service to other computer systems connected to the same network Client —a computer on a network that requests a service from a server connected to the same network Hub — connection for devices on a single network, consisting of multiple…Computer Science3 min readComputer Science3 min read
Nov 7, 2021Unit 6 Resource ManagementImportant resources to manage: primary memory secondary memory processor speed bandwidth screen resolution sound processor graphics processor cache network connectivity CPU and its components a hardware component can perform basic operations such as arithmetic, logical or I/O operations in order to process data and turn it into useful info can…Computer Science6 min readComputer Science6 min read
Oct 24, 20211.1 Systems In OrganizationA new system can be created to replace a system that is inefficient, no longer suitable for its original purpose, out-dated, etc. Planning a new system has potential issues: lack of guidance lack of users to buy lack of end-user ‘ownership’ lack of attention to required training lack of attention to organizational issues, such as organization culture lack of attention to the design A feasibility report — TELOSComputer Science6 min readComputer Science6 min read
Oct 15, 2021Getting started with GithubWhat is Git? Git is an open source version control system (VCS) designed to handle and manage your source code history. What is Github? Github is a cloud-based hosting service that lets you manage your repositories. It’s like an umbrella service to Git. …Github3 min readGithub3 min read
Oct 2, 2021The Five Principles of ProgrammingHow to think like a computer scientist. Thinking Procedurally sub procedures — contains a series of instructions that perform a specific task. This is the most common way to break down a problem into smaller. individual tasks. identifiers — a term used by programmers to uniquely identify a variable, an…Coding2 min readCoding2 min read
Sep 22, 2021Simplification and Boolean ExpressionExamples and calculations and showing each property: Example 1: Y = A’B(A + B’) + AB’(A’ + B) + AB(A’ + B’) Break it down into three parts:Computer Science2 min readComputer Science2 min readSimplification and Boolean ExpressionCore Computer Science For the IB Diploma Program by Kostas Dimitriou, Markos HatzitaskosExamples and calculations and showing each property:Example 1:Y = A’B(A + B’) + AB’(A’ + B) + AB(A’ + B’)Break it down into three parts:----
Aug 19, 2021Why do computer need secondary storage?Short answer: secondary storage is needed when the RAM is full, and extra data needs to be off-loaded. The longer answer is the rest of this article. Basically there is a primary memory in a computer system. I talk about this and another type of memory storage in an article…Computer Science2 min readComputer Science2 min read
Aug 14, 2021The Von Neumann Computer Architecture — ExplainedThe Von Neumann Architecture is one of the most important aspect of computing, as it shows the components of the computer system and how they work in tandem with each other. It is a fundamental concept you need to grasp the idea of, if you plan on studying computing full-time…Computer Science3 min readComputer Science3 min read
Aug 3, 2021What It’s Like to be In Vietnam — in one of the most strictest lockdown in the worldFactories brought to an abrupt halt. Salons, restaurants, schools and all non-essential businesses closed. Supermarkets overwhelmed, often running out of grocery goods. People only going out for necessary reasons, or else you’re fined a hefty amount of money. People losing their jobs and often having to do odd jobs just…Vietnam4 min readVietnam4 min read
