This was the first network.
a) csnet
b) nsfnet
c) ansnet
d) arpanet

Which function key is used to enable the spelling & grammar function in a word processing program such as microsoft word?

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

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.