Tag: networking

The Difference Between a LAN and a WAN

The difference between a Local Area Network (LAN) and a Wide Area Network (WAN) is the expanse and physical size of the network. If you’re unsure what a computer network is or need a refresher on what makes a computer network please read this other post first – What is…

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Client-Side vs. Server-Side Programming

Client-side code runs on a client’s computer whereas server-side code runs on a web server before a webpage is sent to the client. A user first requests a webpage from a server, the server may then run some operations or processes, then afterward the webpage is sent to the user….

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Data vs. Information

Data and information are often confused or used interchangeably when in fact they have two different meanings. Information refers to stuff that is readable and understandable by a human, it is human-readable. Such as a plain text password or a username. Data refers to stuff that not human-readable, but still…

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What is Encoding?

Encoding is the process of transforming the format of information into a different format required for consumption by a different program or service. This can be compared to translating natural languages, like English or French, so that the other person can understand. In computing, encoding is used to transform information…

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Concurrency vs. Parallelism

Concurrency and parallelism are two distinct words with distinct meanings that are often misused or confused. They both refer to the execution of multiple tasks and how multi-tasking is handled by the computer. Parallelism is true multi-tasking, where two or more tasks are run at the same time in parallel….

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Ethernet Cables Explained

Ethernet cables are used within networking to connect computers to devices or other computers. Ethernet cables can be found plugged into routers, or into a client computer to supply network and internet access. They have a small plastic connector clip on each end called an RJ45. The RJ in RJ45…

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What is a Network Packet?

A network packet is a formatted unit of data that is sent through a packet-switched network. A packet will contain the data that is sent through the network as well as information about that data and other metadata to help route the packet through a network. When you send an…

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The TCP/IP Model

TCP/IP stands for Transmission Control Protocol / Internet Protocol. It is basically a protocol or set of rules, that was developed by the Department of Defence (DoD) in 1974 about how to send data from computer to another computer across or within a network. When data is sent across the…

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Static vs Dynamic IP Addresses

IP Addresses are used to identify computers and devices on a network, each device on a network will have its own unique IP address. IP Addresses can be thought of as a physical postal address, they have to be unique so that the postman knows where to deliver the post….

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What is a Server?

A server is similar to a regular desktop computer in the way it can share similar components, such as a CPU, RAM, hard drives, etc. However, the function(s) of a server is completely different from a desktop computer. Servers are usually tasked with managing features and enabling functionality for an…

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