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Many operating systems are "old", and many are new. Without specific systems to compare, your question is unanswerable and meaningless.
"Operating System Concepts" (6th edition) by Silberschatz, Galvin, and Gagne is a comprehensive textbook that covers fundamental concepts of operating systems, including process management, memory management, file systems, and security. It provides a balanced blend of theoretical foundations and practical applications, along with examples from various operating systems. If you need specific answers or explanations from the book, please provide more context or a particular topic you want to explore.
In order to be answered, your question needs to mention the names of the operating systems to which you are referring.
Virtual operating system
yes
Operating systems (OS) are software that manage computer hardware and software resources while providing common services for computer programs. They act as an intermediary between users and the computer hardware. The main types of operating systems include batch operating systems, time-sharing operating systems, distributed operating systems, real-time operating systems, and network operating systems. Additionally, there are specialized operating systems for mobile devices, such as Android and iOS, as well as embedded systems used in various appliances.
When you network operating systems you will have the benefit of both operating systems. You have to ensure both systems are compatible before networking them.
Operating systems are not in applications. Applications are installed on Operating Systems.
what are the disadvantages of operating systems effects of information technology
several types of operating systems are there.
Single-user multitask operating systems are also known as network operating systems
Two operating systems are; Windows, and Linux.