$1)$ OOP stands for $--------------------------.$ What are the advantages of OOP?$2)$ What are the difference between Software and Application?$3)$ What is operating system? What are the three main functions? Give three examples of OS$\mathrm{.}4)$ What is open source software? Give two examples$\mathrm{.}5)$ What are the three types of software licensing model?$6)$ DBMS stands for$------------.$ What is a DBMS software?$7)$ What is Communications software? Give two examples$\mathrm{.}8)$ Explain the following concepts:A$)$ Utility software:B$)$ UI:C$)$ API:D$)$ Applet: