A tech cluster is a geographic area where a high concentration of technology companies, startups, and research institutions are located. These clusters often foster innovation and collaboration, as businesses can share resources, talent, and ideas. Examples of well-known tech clusters include Silicon Valley in California and Shenzhen in China. Tech clusters typically benefit from a skilled workforce, access to venture capital, and a supportive ecosystem that encourages entrepreneurship. They can drive economic growth and attract talent from around the world, making them vital hubs for technological advancement and development in various industries.