Grooming Classroomnotes 30/Mar/2023

Creating Cloud Accounts and Understanding Free plans

• Azure Free tier:
  • Free Plan:
    
  • How to create: Refer Here for the link
  • Best Practices:
    • Create a microsoft account Refer Here first
    • Use this account for creating free tier
    • Azure accepts
      • Credit cards (in india)
      • Some Visa/MasterCard debit cards are also accepted
      • net banking: ensure international transfers are enabled.
• AWS Free tier:
  • Free tier: Refer Here
    
  • AWS Account can be created by using debit as well credit cards
  • Visa/MasterCard cards are only accepted
  • net banking: ensure international transfers are enabled.

System Basics

Operating System

• OS abstracts the complexity of devices and gives us an interface to communicate with system.
• Interfaces are of two types
  • Command line interfaces
  • Graphical user interfaces (GUI)
• Popular Operating Systems:
  • Windows
  • Linux
  • Mac (Osx)
• Generally we have server operating systems as well as Desktop (PC) Operating Systems
• 95% of Servers run linux operating systems

Linux Operating Systems

• Linux Hardware –> Shell –> Applications/Commands
  
• When we speak about linux, we come across
  • RedHat
  • Ubuntu
  • Debian
  • SUSE
  • KALI
• The above names are referrred as distributions.
• On OS’s we run applications.
• Operating Systems Execute Process.
• Every process gets some cpu cycles and memory
• Linux Processes: Linux Processes can be created in two ways
  • FORK
  • EXEC

Setting up your Systems

• Windows User: Launch Powershell as admin
  • Chocolatey: Refer Here
• Mac: Cmd+Space (Spotlight search) => Terminal
  • HomeBrew: Refer Here