गुरु Cool!

Long Answer questions Question: What is OS? Explain the main functions of OS. [10 marks] Ans: An operating system, OS, is the master program that manages all the hardware and software resources of the computer. It makes the hardware operable and provides an interface to the user to use the computer. Windows, Mac OS, IOS etc are the examples of OS. Following are the main functions of OS:   Process Management   Memory management   I/O management   Device management   File management   Virtual memory management   Interrupt handling   Dead lock prevention   Providing Security   Providing user interface   Command Interpreter   Time sharing 1) Process management Process management refers to the managing of CPU and its processing task. OS is responsible for managing the processing task so that the entire programs used by the user are efficiently and effectively processed by the CPU . OS uses scheduling and time sharing to manage process. 2) Memory Management O

"Gaushala, Chabel, Chakrapath, Buspark…" a conductor called out loud signaling me and the bus honked, "Peep! Peep! " I took a quick survey; not crowded enough. Also, I did not see 'The reason' in the lot. I shook my head in denial. Just then another bus honked by. I held my hand out to stop it. I ran inside the bus, looked both sides and before the conductor came in, I jumped out without a word. Not that it mattered to me but I blurted out, "I'm going to Bouddha." After a mundane day at college, I was at one of the illegal bus stand at Tinkune waiting for a bus. But it seemed there was no more of an adventure in the bus. Feeling rats scurrying inside me, I decided to catch the next bus before elephants started trumpeting. "Chakrapath-Chakrapath-Chakrapath… Aayo 'non-stop Express Bhaale gaadi!" the conductor announced. "No 'Pothi', no fun' I whispered as I saw a chick on tight jeans. Ha-ha! I push