Thoughts on supermarket Billing System!

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I borrowed a book from the library. I had a supermarket management system. I used Delphi + SQL Server to create a data module layer to connect to the database (adoquery, adoconnection, datasetprovider) then some classes are encapsulated to take charge of specific functions, and then the client (clientdataset, datasource )!
I graduated from the design project, but the teacher said that I had to make it into the online version. I was in a hurry. He asked me to demonstrate it on two machines! I don't quite understand how to install a client and a server! Please give me some ideas and then tell me what controls are used to implement them! It is a supermarket billing system. The more detailed the better!
Thank you !!!!!!

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