Initial Core 2 study project

notes/OS-1-windows-editions-system-info.md

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+# OS-1: Windows Editions and System Information
+
+Status: studying
+
+Domain:
+- 1.0 Operating Systems
+
+Objective alignment:
+- 1.3 Windows editions and requirements
+- 1.5 Windows command-line/system information basics
+
+## What You Need To Know
+
+Windows comes in different editions. For A+ Core 2, focus on what features separate home-user editions from business editions.
+
+Common exam distinction:
+- Windows Home: basic consumer edition.
+- Windows Pro: adds business features such as joining a domain, BitLocker, Remote Desktop host, Group Policy tools, and Hyper-V support.
+- Windows Pro for Workstations: high-end workstation edition with expanded CPU/RAM/storage feature support.
+- Windows Enterprise/Education: organization-managed editions with more advanced deployment and security controls.
+
+The exam often asks which edition is needed for a business feature. If the feature sounds like centralized management, encryption, domain access, or remote administration, think Pro or higher.
+
+Windows 11 requirement clues:
+- TPM 2.0: security chip/firmware feature used by Windows security features.
+- UEFI: modern firmware replacement for legacy BIOS.
+- Secure Boot: helps prevent untrusted boot loaders from starting before the OS.
+
+Exam shortcut:
+- If the question says a PC cannot upgrade to Windows 11, check TPM 2.0, UEFI, Secure Boot capability, CPU/RAM/storage, and edition compatibility.
+
+## Memory Trick
+
+Remember: **Pro = Professional workplace features**.
+
+The "PRO" clue:
+- **P**olicies: Group Policy management
+- **R**emote Desktop host
+- **O**rganization login: domain join / business identity features
+
+BitLocker also belongs in the "workplace/security" bucket, so associate it with Pro or higher.
+
+## Commands To Enter
+
+Enter these on Windows PowerShell or Command Prompt:
+
+```powershell
+winver
+```
+
+What it does:
+- Opens a Windows dialog showing the Windows version and build.
+- Use it when you need a fast human-readable version check.
+
+```powershell
+systeminfo
+```
+
+What it does:
+- Prints detailed system information.
+- Useful fields include OS Name, OS Version, System Type, BIOS Version, Total Physical Memory, and install date.
+
+```powershell
+hostname
+```
+
+What it does:
+- Shows the computer name.
+- Useful when documenting a device or confirming you are connected to the right machine.
+
+```powershell
+whoami
+```
+
+What it does:
+- Shows the currently signed-in user.
+- Useful when checking whether you are using the expected account.
+
+```powershell
+wmic os get caption,version,buildnumber,osarchitecture
+```
+
+What it does:
+- Shows Windows edition, version, build number, and whether the OS is 32-bit or 64-bit.
+- WMIC is older, but it still appears in exam-style command questions.
+
+```powershell
+tpm.msc
+```
+
+What it does:
+- Opens TPM Management.
+- Use it to check TPM status and version on Windows.
+
+```powershell
+msinfo32
+```
+
+What it does:
+- Opens System Information.
+- Use it to check BIOS Mode, Secure Boot State, system model, CPU, RAM, and OS details.
+
+Enter these on Linux:
+
+```bash
+hostname
+```
+
+What it does:
+- Shows the Linux system's host name.
+
+```bash
+whoami
+```
+
+What it does:
+- Shows the current logged-in user.
+
+```bash
+uname -a
+```
+
+What it does:
+- Shows kernel and architecture information.
+- Useful for identifying whether the system is 64-bit and what kernel it is running.
+
+```bash
+cat /etc/os-release
+```
+
+What it does:
+- Shows the Linux distribution name and version.
+- This is one of the quickest ways to identify the Linux OS.
+
+## Mini Lab
+
+Goal:
+- Identify and document your system's OS edition/version, architecture, host name, current user, CPU, and RAM.
+
+On Windows:
+1. Run `winver`.
+2. Run `systeminfo`.
+3. Run `hostname`.
+4. Run `whoami`.
+5. Run `msinfo32`.
+6. Optional: run `tpm.msc`.
+7. Record:
+   - Windows edition
+   - Version/build
+   - 32-bit or 64-bit
+   - Host name
+   - Current user
+   - Installed RAM
+   - BIOS mode
+   - Secure Boot state
+   - TPM version/status, if available
+
+On Linux:
+1. Run `cat /etc/os-release`.
+2. Run `uname -a`.
+3. Run `hostname`.
+4. Run `whoami`.
+5. Optional: run `free -h` to view memory.
+6. Record:
+   - Distribution
+   - Kernel
+   - 32-bit or 64-bit architecture
+   - Host name
+   - Current user
+   - Installed/available memory
+
+## Quick Check Before Quiz
+
+You are ready for the OS-1 quiz when you can answer these without looking:
+- Which edition is usually needed for domain join and Group Policy?
+- Which command quickly displays Windows version/build in a GUI dialog?
+- Which command gives detailed Windows inventory information?
+- Which Linux file commonly identifies the distribution?
+- Which Windows 11 upgrade clues point to firmware/security requirements?