What the two main things an operating system do

How do I write code in Java for "A spinner for a game has four possible options: blue, red, yellow, green. The chance of landing on each option is equal. Simulate using the spinner 15 times and reporting the resulting color."?

While working alone at their constant rates computer X can process 240 files in 4 hours, and comp Y 240 files in 8 hrs. If all files processed by these comp. are the same size how long would it take the two comp.

A mobile device user has tried to install a new app numerous times without success. She hasclosed all unused apps, disabled live wallpapers, and restarted the device in an attempt to getthe app to install.

Interpretations of Moore's law assert that: A. data storage costs decrease by 50% every 18 months. B. PCs decrease in market share by 9% every 5 years. C. transistors decrease in size 50% every two years. D. computing power doubles every 18 months.

Which was the first wiki based website

How do you italicise, bold, letters on this app?

9.2 code practice edhesive

3. Describe what a pre-processor does in a network-based IDS tool such as Snort. Demonstrate your understanding of this functionality by citing two examples of pre-processors and explaining what they contribute to the process of network traffic

What is the LER for a rectangular wing with a span of 0.225m and a chord of 0.045m

Which statement about the Sun is correct? O A. Some of the waves that the Sun gives off is in the form of water. O B. Some of the energy that the Sun gives off is in the form of light. O C.