Sometimes you can replace your keyboard and install a new keyboard as well as replace the key that doesn't work. For those who want to substitute their keyboard, the specified method is very important. Retail software is used by all small, medium and large enterprises. ... Retailing software are both Installation and SaaS based. It is designed especially for Point of Sale (POS), Customer Relationship Management (CRM), Inventory Management and retail accounting. https://www.vrssoftwares.com/retail-software/