A computer consultant is a professional who provides expert advice and assistance to individuals or organizations in regards to their computer systems and technologies. They can help with a variety of tasks, including setting up and configuring systems, troubleshooting problems, providing training and support, and developing and implementing technology solutions. Computer consultants can work with clients on a short-term or long-term basis, depending on the specific needs of the client. They may work for a consulting firm or operate as independent contractors.