POS收银机销售系统功能包括：收银，挂单，取单，退货，对商品，账户的维护，查询销售记录等。 -POS cash register sales system features include: cash register, lodging take orders, returns, commodities, account maintenance, check sales records.

Linux下c描写的 简易销售监控系统，以菜单的形式进行管理，包括商品的增删改查等。-Simple sales monitoring system under Linux c descr iption to the menu in the form of management, including commodity CRUD.

轿车销售管理系统，系统实现了查询和数据库连接的众多功能。-Sedan sales management system, the system has many features of the query and database connections.

Linux系统编程项目--销售信息系统 【目的】 掌握共享内存的封装使用 掌握串口编程 掌握数据报文的解码 掌握多线程/多进程编程-Linux System Programming Project- Sales Information System [Objective] To grasp the shared memory programming package uses master serial data message to master to master mult