Question: 3. a. How many Process Control Blocks (PCB) would you expect while running your OS?(Briefly, why)? b. Is a PCB part of a device controller,

3. a. How many Process Control Blocks (PCB) would you expect while running your OS?(Briefly, why)?

b. Is a PCB part of a device controller, a file, or something else (what)?

c. Describe three pieces of information in a Process Control Block (PCB).

4. Windows mostly supports backwards compatibility in the OS, MACs usually dont.Considering application programs, what is backwards compatibility? Does this also mean that a 20 year old graphics controller works on a new Windows PC? (please, briefly explain)

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