Which practice will prevent data loss in case of a computer malfunction?

Jessie has received a contract to build a real-time application for a baker. however, the baker doesn't want to invest too much money. his only requirement is that he wants the customers to know which cupcakes are available at what time and in what quantity. so his core requirement is that the details of product should be in real time. what platform can jessie use to develop this application?

Modern businesses use different technologies to accomplish work tasks

Whats are the different parts of no verbal comunication, especially body language?