# Lab OS-1: System Inventory

Domain:
- 1.0 Operating Systems

Works on:
- Windows
- Linux

Does not require:
- macOS

## Goal

Build the habit of collecting basic system identity information before troubleshooting.

## Windows Steps

Run:

```powershell
winver
systeminfo
hostname
whoami
wmic os get caption,version,buildnumber,osarchitecture
msinfo32
tpm.msc
```

Record:
- Windows edition:
- Version/build:
- Architecture:
- Host name:
- Current user:
- Total RAM:
- BIOS mode:
- Secure Boot state:
- TPM status/version:

## Linux Steps

Run:

```bash
cat /etc/os-release
uname -a
hostname
whoami
free -h
```

Record:
- Distribution:
- Kernel:
- Architecture:
- Host name:
- Current user:
- Memory:

## What You Should Learn

- `winver` is a quick Windows version check.
- `systeminfo` is a fuller Windows inventory command.
- `hostname` identifies the machine.
- `whoami` identifies the current user.
- `cat /etc/os-release` identifies the Linux distribution.
- `uname -a` shows kernel and architecture details.
- `msinfo32` shows detailed Windows system and firmware information.
- `tpm.msc` checks TPM status and version.