ACSA

  • [ACSA Training #2] OSI 7 Layers

    As computers rapidly advanced in the mid-1980s, all manufacturers attempted to implement their own proprietary communication protocols. As a result, compatibility issues arose between products from different manufacturers, leading to unreliable communication. To resolve this, the International Organization for Standardization (ISO) proposed the OSI (The Open Systems Interconnection) model, a standard communication model for computing devices… .

  • [ACSA Education #1] Network Basics

    Today, shall we start by briefly looking into networks? Before we do that, I think we need to understand what communication is. In English, communication is called "Communication." In other words, it means communicating with one another. People conveying their intentions and exchanging information with one another—that is what communication means. The same applies to machines. Different computers exchanging data—that is what computers...