IBM developed the first widely used personal computer, known as the IBM PC, released in 1981. This groundbreaking machine set a standard for PC architecture and software compatibility, revolutionizing the computing industry. By adopting an open architecture model, IBM enabled third-party developers to create compatible software and hardware, fostering an ecosystem of innovation. The IBM PC’s success laid the foundation for the rapid growth of personal computing, leading to widespread adoption in homes and businesses, and marked the beginning of a new era in technology.