Notes on IT Concepts PDF

# Notes ## 05/11/24 - **Drivers/controladores:** Responsible for communication between the operating system and a hardware device. - **Boots:** Installing systems and starting them. ## 22. Edge Computing - Performs data processing on local devices (routers). - Minimizes latency in real-time app...

# Notes ## 05/11/24 - **Drivers/controladores:** Responsible for communication between the operating system and a hardware device. - **Boots:** Installing systems and starting them. ## 22. Edge Computing - Performs data processing on local devices (routers). - Minimizes latency in real-time apps. ## 23. Fog Computing - Distributes processing through nodes before reaching the cloud. ## 24. Edge Computing and Fog Computing **Similarities**: - Process data close to where it's generated, minimizing latency and reducing storage in the cloud. **Differences**: - **Edge Comp**: Processes data directly on local devices (sensors/routers). - **Fog Comp**: Creates an intermediate layer that distributes processing across a network of interconnected nodes. This allows for faster and more efficient responses in applications such as IoT and Industry 4.0. It also improves speed and security in data management. ## 25. Bash Script - A text file containing Linux commands. - Allows you to automate tasks, manipulate files and perform complex operations. - **Steps:** 1. Create a file named "contouch name.sh" 2. ```bash #!/bin/bash echo "Hola" fecha=$(date) echo" Fecha y hora actual : $fecha" ``` 3. Give permissions `chmod +x name.sh` 4. Run the script: `./name.sh` ## 1/10/24 ### 13. PC Shortcuts - **Pin app to taskbar** - **System (View specifications: IPv4, 50...)** ## 15/10/24 ### 14. Echo command Displays what you input on the screen. Example: `echo esto es un ejemplo` ## 15. Keyboard Shortcuts - Copy: Ctrl+C - Paste: Ctrl+V - **Other Keyboard Shortcuts**: Most webpages have shortcuts on their pages. ## 16. `dir` command - Displays files and folders: `dir /` - Displays files with a specific extension: `dir.extension /s` ## 29/10/24 ### 17. Virtualization - Allows you to divide hardware resources from a system among multiple virtual machines - Examples: Virtual Box, VMware, Microsoft Virtual Desktop ### 18. Data backup and Cloning - **Data backup**: Creates a copy of files and programs from the hard drive, but not aspects like partition mapping. - **Cloning**: A perfect copy of the hard drive. Examples: Clonezilla and Norton Ghost. - **Deployment**: Taking an installation to numerous sites (launching an app to the market). This is useful for installing one or more apps across various devices. By creating an image/layout, you can deploy the app. Note that the hardware and software need to be the same as the original deployment. ### 19. Maintenance Tools - **CCleaner**: - Clears corrupt files, cookies and updates. - **Warning:** Use with caution as it could delete logins or other important data. ## 24/09/24 ### Introduction to Digitization in Productive Systems - **What is digitization?** - Transferring information from a physical format to a digital environment. - **What is digital transformation?** - A process in which an organization integrates digital technology into every area of its business practices. - **What is hacking?**. - Exploiting vulnerabilities in systems, potentially for improvement or malicious purposes. - **What is digital literacy?** - The capability of individuals to perform various tasks in a digital environment. - **Tools that aid digital literacy**: - **Project Management** (Microsoft Planner, Trello, Canva, Asana, Monday) - **Databases** (Relational Databases E/R, SQL, NoSQL Databases) - **Mail Marketing** (Mailchimp) - **Efficient Searches** (Google Dork) - **Artificial Intelligence (AI)** (Chat-GPT) - **Integrated Development Environment (IDE)** (Visual Studio Code) - **Development** (Perforce)