创新电脑公司是一家专门销售计算机整机、外围设备和零部件的公司。该公司有3个部门：市场部、技术部、财务部。市场部的人员负责采购和销售业务；技术部的人员负责售后服务、保修等技术性工作；财务部的人员负责财务业务。公司需要将所经营的计算机设备的库存、销售、保修、职工等信息都存储在数据库中。-The innovative computer company is a company dedicated to selling computer machine, peripherals and components. The company has three departments: Marketing Department, Technology Department, Finance Department. Marketing personnel responsible for procurement and sales operations　Technology Department personnel responsible for after-sales service, warranty and other technical work　Finance Department personnel responsible for financial operations. Companies need to operate computer equipment, inventory, sales, warranty, trade unions and other information stored in the database.