What statement best describes operating systems? a. it's possible for modern computers to function without operating systems b. most operating systems are free or very inexpensive c. operating systems are managed by the computers microprocessor (cpu) d. operating systems manage the computers random access memory (ram)

Exchanging which type of data uses the least bandwidth? music photographs video voice bandwidth- the amount of data that can be moved between two points in a set time period

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

State 7 common key's for every keyboard