Operating System MCQ for more mcqs watch my channel:https://www.youtube.com/channel/UCjlRubK7n59ujp97X2KXZMw 1) Which of the following is not an operating system? Windows Linux Oracle DOS Hide Answer Workspace Answer: (c) Oracle Explanation: Oracle is an RDBMS (Relational Database Management System). It is known as Oracle Database, Oracle DB, or Oracle Only. The first database for enterprise grid computing is the Oracle database. 2) What is the maximum length of the filename in DOS? 4 5 8 12 Hide Answer Workspace Answer: (c) 8 Explanation: The maximum length of the filename is 8 characters in the DOS operating system. It is commonly known as an 8.3 filename. 3) When was the first operating system developed? 1948 1949 1950 1951 Hide Answer Workspace Answer: (c) 1950 Explanation: The first operating system was developed in the early 1950's. It was also called a single-stream batch processing system because it presented data i...