Programmers are individuals who write and create computer software. They use programming languages, like Python or Java, to give instructions to computers, enabling them to perform specific tasks. Programmers can work on various projects, from developing mobile apps to building websites, and they often collaborate with other professionals, such as designers and project managers. In addition to writing code, programmers also test and debug their software to ensure it works correctly. They need strong problem-solving skills and a good understanding of algorithms and data structures. Overall, programmers play a crucial role in the technology we use every day.