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What is hardware protection mechanism in operating systems?
CPU protection Memory protection I/O protection Dual mode protection. Research more about these and maybe you will get where you are going.
How does the distinction between monitor mode and user mode function as form of protection system?
The distinction between kernel mode and user mode provides a rudimentary form of protection in the following manner: Certain instructions could be executed only when the CPU is in kernel mode. Similarly, hardware devices could be accessed only when the program is executing in kernel mode. Control over when interrupts could be enabled or disabled is also possible only when the CPU is in kernel mode. Consequently, the CPU has very limited capability when executing in user mode, thereby enforcing protection of critical resources.
Is it possible to construct a secure operating system for those computer systems which do not provide a privileged mode of operation in hardware?
No, it is not possible to construct a secure operating system for those computer systems which do not provide a privileged mode of operation in hardware.
How do you switch from dual mode to one tv?
To change the mode on your receiver, on the front panel of the receiver is a 'Mode' button. Press that to change the receiver between Single and Dual mode.
What is a dual mode operation?
Sharing system resources requires operating system to ensure that an incorrect program cannot cause other programs to execute incorrectly.Provide hardware support to differentiate between at least two modes of operations.user mode - Execution done on behalf of a user.Monitor mode - Execution done on behalf of operating system.Mode bit is added to computer hardware to indicate the current mode : monitor (0) or user (1).
What is the definition of mode of operation?
its like the point of the operation or like the purpose of the operation. like a theifs mode of operation could be to rob a bank or steal something else
What is cif dual-mode camera?
camera and webcam
What mode is the operating system mode in which programs have extensive access to system information and hardware?
kernel mode
What does the Windows kernel operate in?
hardware mode
Why are dual modes needed and how do system calls relate to the operating system and the concept of dual mode?
d
Real mode allows programs direct access to but protected mode does not?
i finnally freackin found it, real mode(16 bit) allows access to all hardware resources, where protected mode(32 bit) controls how the application accesses the hardware. In real-mode, an application has complete access to all hardware resources. This "open door" policy can create problems when applications make conflicting commands to the hardware. In protected mode and long mode, the OS controls how an application can access hardware.page 53 in CompTIA A+ Guide to Managing & Maintaining Your PC, Sixth Edition by Jean Andrews
What has the author Lawrence T Blades written?
Lawrence T. Blades has written: 'An analysis of a digital sampled data servomechanism and the design of a switching device for dual mode operation' -- subject(s): Electronics
