COMPUTER SCIENCE AND ENGINEERING
OPERATING SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A number of layers
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The interaction of the layers
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A small operating system core
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A networked computer system.
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Detailed explanation-1: -A layer-by-layer approach allows use of the properties of each material to enhance the properties of the combination. Additional air gaps between the various layers increases the insulation. The possibility to add and remove layers makes a product more amenable for use in various environments.
Detailed explanation-2: -Layer 0 handles the basic multiprocessing of the CPU. Layer 0 also manages the allocation of processes, interruptions that occur during the process, if the timer expires, or switching between the processes.
Detailed explanation-3: -Although the layered architecture pattern does not specify the number and types of layers that must exist in the pattern, most layered architectures consist of four standard layers: presentation, business, persistence, and database (Figure 1-1).
Detailed explanation-4: -OSI Model Explained: The OSI 7 Layers. We’ll describe OSI layers “top down” from the application layer that directly serves the end user, down to the physical layer. The application layer is used by end-user software such as web browsers and email clients.
Detailed explanation-5: -The access layers involved include at least the organization network and firewall layers, the server layer (or physical layer), the operating system layer, the application layer, and the data structure layer.