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Lab Work In your own words, whe a short perngrep for each of the following questions from the signed readings Question 1 Figure 3.9b contains seven states. la principle, one could draw a transition between any two states, for a total of 42 different transitions List all of the possible tensions and give an emple of what could cause each transition List all of the impossible t o and explain why. Question 2 The VAX/VMS operating system makes use of four-processor s modes to face the protection and sharing of system rescut among processes. The mess mode determines - Instruction execution privilegest What instructions the processor may execute Memory access privileges Which locations in virtual memory the current instruction may access The four modes are as follows: Kernel: Frecutes the kernel of the VMS operating system, which includes memory management, interrupt handling, and I/O operations Executive Executes many of the OS service calls, including file and record disk and tape) management routines Supervisor Executes therOS ,chas responses to commands User program, plus les such as comple, online, und de A process executing in a less privileged mode often needs to call a procedure that executes in a more privileged mode, for example, a user program requires an operating system service. This call is achieved by using a change-mode (CHM) instruction, which causes an interrupt that transfers control to a routine the new access mode. A return is made by executing the RH (am from an exception or i mp) instruction A number of operating systems have two modes: kernel and user. What the vantages and disadvantages of providing four modes instead of two? . Can you make a case for even more than four modes? Lab Work In your own words, whe a short perngrep for each of the following questions from the signed readings Question 1 Figure 3.9b contains seven states. la principle, one could draw a transition between any two states, for a total of 42 different transitions List all of the possible tensions and give an emple of what could cause each transition List all of the impossible t o and explain why. Question 2 The VAX/VMS operating system makes use of four-processor s modes to face the protection and sharing of system rescut among processes. The mess mode determines - Instruction execution privilegest What instructions the processor may execute Memory access privileges Which locations in virtual memory the current instruction may access The four modes are as follows: Kernel: Frecutes the kernel of the VMS operating system, which includes memory management, interrupt handling, and I/O operations Executive Executes many of the OS service calls, including file and record disk and tape) management routines Supervisor Executes therOS ,chas responses to commands User program, plus les such as comple, online, und de A process executing in a less privileged mode often needs to call a procedure that executes in a more privileged mode, for example, a user program requires an operating system service. This call is achieved by using a change-mode (CHM) instruction, which causes an interrupt that transfers control to a routine the new access mode. A return is made by executing the RH (am from an exception or i mp) instruction A number of operating systems have two modes: kernel and user. What the vantages and disadvantages of providing four modes instead of two? . Can you make a case for even more than four modes? Lab Work In your own words, whe a short perngrep for each of the following questions from the signed readings Question 1 Figure 3.9b contains seven states. la principle, one could draw a transition between any two states, for a total of 42 different transitions List all of the possible tensions and give an emple of what could cause each transition List all of the impossible t o and explain why. Question 2 The VAX/VMS operating system makes use of four-processor s modes to face the protection and sharing of system rescut among processes. The mess mode determines - Instruction execution privilegest What instructions the processor may execute Memory access privileges Which locations in virtual memory the current instruction may access The four modes are as follows: Kernel: Frecutes the kernel of the VMS operating system, which includes memory management, interrupt handling, and I/O operations Executive Executes many of the OS service calls, including file and record disk and tape) management routines Supervisor Executes therOS ,chas responses to commands User program, plus les such as comple, online, und de A process executing in a less privileged mode often needs to call a procedure that executes in a more privileged mode, for example, a user program requires an operating system service. This call is achieved by using a change-mode (CHM) instruction, which causes an interrupt that transfers control to a routine the new access mode. A return is made by executing the RH (am from an exception or i mp) instruction A number of operating systems have two modes: kernel and user. What the vantages and disadvantages of providing four modes instead of two? . Can you make a case for even more than four modes? Lab Work In your own words, whe a short perngrep for each of the following questions from the signed readings Question 1 Figure 3.9b contains seven states. la principle, one could draw a transition between any two states, for a total of 42 different transitions List all of the possible tensions and give an emple of what could cause each transition List all of the impossible t o and explain why. Question 2 The VAX/VMS operating system makes use of four-processor s modes to face the protection and sharing of system rescut among processes. The mess mode determines - Instruction execution privilegest What instructions the processor may execute Memory access privileges Which locations in virtual memory the current instruction may access The four modes are as follows: Kernel: Frecutes the kernel of the VMS operating system, which includes memory management, interrupt handling, and I/O operations Executive Executes many of the OS service calls, including file and record disk and tape) management routines Supervisor Executes therOS ,chas responses to commands User program, plus les such as comple, online, und de A process executing in a less privileged mode often needs to call a procedure that executes in a more privileged mode, for example, a user program requires an operating system service. This call is achieved by using a change-mode (CHM) instruction, which causes an interrupt that transfers control to a routine the new access mode. A return is made by executing the RH (am from an exception or i mp) instruction A number of operating systems have two modes: kernel and user. What the vantages and disadvantages of providing four modes instead of two? . Can you make a case for even more than four modes