HOW IS SOFTWARE MADE. .?. .

In general, here's how software is made: 

• Someone has a good idea (sometimes it's a marketing person, sometimes an engineer), they do some research, & define some requirements (how will it work, what machines will it work on,when will it ship). 
• The engineers work on the detailed design (how it will work behind the scenes and what the user will see), chose the appropriate software language and tools and write the code. 
• The software testers test the product and verify that fixes work correctly. 
• When it's deemed ready by the project team and/or the management team, the product is shipped/released to the customer.