The TIG Stack is a powerful solution for real-time analytics, observability, and monitoring. It consists of Telegraf for data collection, InfluxDB for storage and analytics, and Grafana for visualization. InfluxDB Core is the latest version of InfluxDB, introducing improvements in performance, usability, and cost-efficiency. To get started with the TIG Stack, you'll need to install Telegraf, InfluxDB Core, and Grafana, then follow a series of steps to write data to InfluxDB using Telegraf, visualize your data with Grafana, and finally configure the Grafana source to connect to InfluxDB Core. The process involves creating a configuration file for Telegraf, starting the Telegraf service, verifying successful writes with the InfluxDB CLI, and configuring the Grafana source to connect to InfluxDB Core.