COMPUTER SOFTWARE
OPERATING SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Manages all of the computer input and output by managing requests from programs to use devices like printers, speakers, keyboards and hard disk drives. Operating systems allow for different accounts to be setup.The operating system can assign certain user access rights:-Read (view and open) but not change files or folders-Write:allows file/folder to be changed or deleted-Execute:gives user right to run an executable application.
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Controls files on system e.g. text, graphic files. Controls file permissions:to open a file, write to it and delete it. Helpful for security and to help organise files e.g. sorting. In windows file management is completed using windows explorer. (Right click the windows logo)
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Either A or B
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None of the above
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Detailed explanation-1: -The security management function of an operating system helps in implementing mechanisms that secure and protect the computer system internally as well as externally. Therefore an operating system is responsible for securing the system at two different levels which are internal security and external security.
Detailed explanation-2: -Device Management in Operating system manages all the hardware or virtual devices of a computer or PC. The device management system allocates input/output devices to the process on the basis of priority and deallocated as well either temporarily or permanently depending upon the conditions.
Detailed explanation-3: -An operating system has three main functions: (1) manage the computer’s resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
Detailed explanation-4: -Input/output (I/O) management involves controlling the flow of data into and out of a data processing complex. In an automated environment, you might want to change your approach to I/O activities that previously required manual intervention, such as tape and printer management.