Grassroots computing allows individuals in an organization to design, develop, test, and maintain software without formal IT approval. This changes the typical corporate IT model by distributing software development throughout the company instead of centralizing it within the IT department. Employees can now create solutions for problems in their work without waiting for the IT department, leading to faster development cycles and software that better fits individual needs. However, grassroots computing may introduce issues with security, integration, and quality control if not properly governed.