Mr. Smith is a small business owner. He has decided to setup a small office and hire a secretary who will take calls and prepare weekly reports which will be printed and presented to Mr. Smith. What type of printer would you recommended to Mr. Smith? Justify your response.

Which of the following is a way the operating system prevents unknown or unauthorized users from accessing the system?

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

In deadlock avoidance using banker’s algorithm, what would be the consequence(s) of: (i) a process declaring its maximum need as maximum possible for each resource. in other words, if a resource a has 5 instances, then each process declares its maximum need as 5. (ii) a process declaring its minimum needs as maximum needs. for example, a process may need 2-5 instances of resource a. but it declares its maximum need as 2.