39. When events are to be performed in limited time constaints the os is used is (A) time shorting system
(B) batch processing system
(C) real time system
(D) multiprocessing os
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On nba 2k 19, every time i try to join a my park game, it leads ro a website telling my dad that he needs ps plus. i already have ps plus though. how do i fix this?

Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.

Write a defining table and then a program that determines if you can sleep in or not. your program should get all its input from your computer’s clock. on all weekdays (monday through friday) that are not holidays, your program should output “get up! ” on all other days (weekends and holidays), your program should output “sleep in.” the three holidays that your program must check for are january 1 (new year’s day), july 4 (u. s. independence day), and december 25 (christmas). you don’t need to include other holidays in your program because most other holidays do not occur on a fixed day each year.