Four Levels Concept

Four Levels Concept is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Computers & Equipment
• Computers Dealers New & Used

North American Industry Classification System (NAICS) Categories:

• Computer And Software Stores
• Used Merchandise Stores > Office Furniture & Equipment, Secondhand > Computers Dealers Used & Recycled

Standard Industry Classification (SIC) Categories:

• Computer And Computer Software Stores
• Used Merchandise Stores > Office Furniture & Equipment, Secondhand > Computers Dealers Used & Recycled