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how to explain what is confidentiality to a service user
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What is the difference batween privacy and confidentiality?
Confidentiality is ensuring the privacy of others and only authorized people have access ti o it
List five services provided by an operating system Explain how each provides convenience to users Explain in which cases it would be impossible for user-level programs to provide these services?
1. List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user-level programs to provide these services.Answer:1. Program execution - the operating system will schedule on behalf of the user. This service could not be handled by the user because you need access to the hardware.2. I/O operations - This makes it easy for users to access I/O streams. This means the user does not need to know the physical access of data in the machine. If there were not interface provided the user could not do this on their own.3. File-system manipulation - This means the user does not need to worry about accessing and updating the file system table. Such access is best handled by the operating system because of this complexity.4. Communications - in the case of memory mapping this is extremely beneficial for the OS to handle access and control to memory regions. The user could not in this case access such a system to share the map.5. Error detection - If there is some error on one of the lower levels the user is notified so that they can take action. If there is no memory left on the heap for instance. The user could not do this because it is simply too much work for the user.
O que significa user name em portuges?
User name quer dizer o nome de usuário.
What are the 7 essential components o a personal code of computer ethics?
Honesty Respect Confidentiality Professionalism Responsibility Communication Obeying the
What are services provided by operating system?
Operating system (OS) provides two main services: file management and user interface with the hardware system. ^^ Following are the five services provided by an operating systems to the convenience of the users. The purpose of a computer systems is to allow the user to execute programs. So the operating systems provides an environment where the user can conveniently run programs. The user does not have to worry about the memory allocation or multitasking or anything. These things are taken care of by the operating systems. Running a program involves the allocating and deallocating memory, CPU scheduling in case of multiprocess. These functions cannot be given to the user-level programs. So user-level programs cannot help the user to run programs independently without the help from operating systems. === === === === Each program requires an input and produces output. This involves the use of I/O. The operating systems hides the user the details of underlying hardware for the I/O. All the user sees is that the I/O has been performed without any details. So the operating systems by providing I/O makes it convenient for the users to run programs. For efficiently and protection users cannot control I/O so this service cannot be provided by user-level programs. === === === === The output of a program may need to be written into new files or input taken from some files. The operating systems provides this service. The user does not have to worry about secondary storage management. User gives a command for reading or writing to a file and sees his her task accomplished. Thus operating systems makes it easier for user programs to accomplished their task. This service involves secondary storage management. The speed of I/O that depends on secondary storage management is critical to the speed of many programs and hence I think it is best relegated to the operating systems to manage it than giving individual users the control of it. It is not difficult for the user-level programs to provide these services but for above mentioned reasons it is best if this service s left with operating system. === === === === There are instances where processes need to communicate with each other to exchange information. It may be between processes running on the same computer or running on the different computers. By providing this service the operating system relieves the user of the worry of passing messages between processes. In case where the messages need to be passed to processes on the other computers through a network it can be done by the user programs. The user program may be customized to the specifics of the hardware through which the message transits and provides the service interface to the operating system. === === === === An error is one part of the system may cause malfunctioning of the complete system. To avoid such a situation the operating system constantly monitors the system for detecting the errors. This relieves the user of the worry of errors propagating to various part of the system and causing malfunctioning. This service cannot allowed to be handled by user programs because it involves monitoring and in cases altering area of memory or deallocation of memory for a faulty process. Or may be relinquishing the CPU of a process that goes into an infinite loop. These tasks are too critical to be handed over to the user programs. A user program if given these privileges can interfere with the correct (normal) operation of the operating systems.
do you want wiki user to stop?
maybe, I d o n t k n o w
Does the text explain the craftmanship behind o Henry's work?
No, the text does not explain the craftsmanship behind O. Henry's work. It focuses on summarizing the stories rather than delving into the craft or writing techniques used by O. Henry.
How can you explain that you love someone?
Just by saying it and be friendly o her/him.
What are the Service provided by operating system?
Operating system (OS) provides two main services: file management and user interface with the hardware system. ^^ Following are the five services provided by an operating systems to the convenience of the users. The purpose of a computer systems is to allow the user to execute programs. So the operating systems provides an environment where the user can conveniently run programs. The user does not have to worry about the memory allocation or multitasking or anything. These things are taken care of by the operating systems. Running a program involves the allocating and deallocating memory, CPU scheduling in case of multiprocess. These functions cannot be given to the user-level programs. So user-level programs cannot help the user to run programs independently without the help from operating systems. === === === === Each program requires an input and produces output. This involves the use of I/O. The operating systems hides the user the details of underlying hardware for the I/O. All the user sees is that the I/O has been performed without any details. So the operating systems by providing I/O makes it convenient for the users to run programs. For efficiently and protection users cannot control I/O so this service cannot be provided by user-level programs. === === === === The output of a program may need to be written into new files or input taken from some files. The operating systems provides this service. The user does not have to worry about secondary storage management. User gives a command for reading or writing to a file and sees his her task accomplished. Thus operating systems makes it easier for user programs to accomplished their task. This service involves secondary storage management. The speed of I/O that depends on secondary storage management is critical to the speed of many programs and hence I think it is best relegated to the operating systems to manage it than giving individual users the control of it. It is not difficult for the user-level programs to provide these services but for above mentioned reasons it is best if this service s left with operating system. === === === === There are instances where processes need to communicate with each other to exchange information. It may be between processes running on the same computer or running on the different computers. By providing this service the operating system relieves the user of the worry of passing messages between processes. In case where the messages need to be passed to processes on the other computers through a network it can be done by the user programs. The user program may be customized to the specifics of the hardware through which the message transits and provides the service interface to the operating system. === === === === An error is one part of the system may cause malfunctioning of the complete system. To avoid such a situation the operating system constantly monitors the system for detecting the errors. This relieves the user of the worry of errors propagating to various part of the system and causing malfunctioning. This service cannot allowed to be handled by user programs because it involves monitoring and in cases altering area of memory or deallocation of memory for a faulty process. Or may be relinquishing the CPU of a process that goes into an infinite loop. These tasks are too critical to be handed over to the user programs. A user program if given these privileges can interfere with the correct (normal) operation of the operating systems.
What disorder has no physical changes o explain the symptoms?
Functional Disorder
What has the author O E Ault written?
O. E. Ault has written: 'Report on training of the civil service of Israel' -- subject(s): Civil service
What generation computers were the first to use operating systems containing instructions that any software could use?
I'm not sure what you are asking. Third generation computers were the first to have fully functional OSs supplied by the manufacturer. They were also the first to come with supervisor/user modes where some instructions could only be executed by the OS in Supervisor mode, user programs would error out if they executed such instructions directly. This protected the OS and I/O devices from defective user code. To perform any I/O or interact with other programs the user programs had to call OS service routines to coordinate the actions and execute the required Supervisor only instructions.
