Computer user support specialists need knowledge in the following areas:

• Computers and Electronics: Computer hardware and software.
• Customer and Personal Service: Providing special services to customers based on their needs.
• Telecommunications: The tools used to send messages and data.
• English Language: The meaning and use of the English language.
• Education and Training: The methods of teaching and learning.
• Mechanical: The design, use, and repair of machines and tools.
• Engineering and Technology: How to use computers and rules of engineering to design and produce goods and services.
• Administration and Management: How to run a business or group.
• Clerical: General office work such as filling and storing information.
• Communications and Media: How to produce written, spoken or visual media.
• Design: Making and using plans, blueprints, drawings, and models.