Operating system : It is a set of programs that takes care of all kinds of activities among the hardware device. It serves as an interface between the user and the device. Once it is loaded, it coordinates activities like running applications, transferring information, and so on. If a computer or a mobile device is running then, the operating system remains in its memory. Tools: Tools allow the users to perform tasks with respect to maintenance which is related to managing devices, programs, media used by computers and other devices. For example, security tools help to secure a network or a system from malwares.

Question

Draw a system/level-0 diagram for this scenario: You are developing a new customer relationship management system for the BEC store, which rents out movies to customers. Customers will provide comments on new products, and request rental extensions and new products, each of which will be stored into the system and used by the manager for purchasing movies, extra copies, etc. Each month, one employee of BEC will select their favorite movie pick of that week, which will be stored in the system. The actual inventory information will be stored in the Entertainment Tracker system, and would be retrieved by this new system as and when necessary. Example of what a level-0 diagram looks like is attached.

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Question

Chapter 4, Problem 3CT

Program Plan Intro

Operating system:

It is a set of programs that takes care of all kinds of activities among the hardware device. It serves as an interface between the user and the device.

Once it is loaded, it coordinates activities like running applications, transferring information, and so on.

If a computer or a mobile device is running then, the operating system remains in its memory.

Tools:

Tools allow the users to perform tasks with respect to maintenance which is related to managing devices, programs, media used by computers and other devices.

For example, security tools help to secure a network or a system from malwares.

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Draw a level-0 diagram for this scenario: You are developing a new customer relationship management system for the BEC store, which rents out movies to customers. Customers will provide comments on new products, and request rental extensions and new products, each of which will be stored into the system and used by the manager for purchasing movies, extra copies, etc. Each month, one employee of BEC will select their favorite movie pick of that week, which will be stored in the system. The actual inventory information will be stored in the Entertainment Tracker system, and would be retrieved by this new system as and when necessary.