In the era of mainframes, software testing meant testing functionality of the application which was running on the mainframe server and accessed from consoles connected to the server. The applications used to be character based with no graphic content. The tester would write programs and run them on the server to see that the parts of the application which were being tested were working correctly.
In the client server era, the tester was required to test both client parts as well as server parts of any application. In this era, initially the applications used to be character based with no graphic content involved. In later years, after popularization of Windows and McIntosh desktops, graphics became very popular. The client side of the application now involved testing not only functional aspects but also testing the presentation layer for usability.
When internet became popular, the intranets were also came into being. Now all…
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