Polling for an I/O completion can waste a large number of CPU cycles if the processor iterates a busy-waiting loop many times before the I/O completes. But if the I/O device is ready for service, polling can be much more efficient than is catching and dispatching an interrupt. Describe a hybrid strategy that combines polling, sleeping, and interrupts for I/O device service. For each of these three strategies (pure polling, pure interrupts, hybrid), describe a computing environment in which that strategy is more efficient than is either of the others.

This is very true

cyberstalking on the internet means to harass or stalk someone, a group, or an organization. this may include defamation, slander, and false accusations. in many jurisdictions, cyberstalking is a criminal offense. 

on the other hand, cyberbullying focuses more on intimidating, threatening or harassing someone. harmful bullying include posting threats, rumors, and sexual remarks.

One main difference is that a graphing calculator can graph out functions while a scientific calculator cannot. there are some scientific calculations that have built-in table functions, but generally (and obviously) scientific calculators are not built to be able to graph. graphing calculators have larger screens to accommodate for their eponymous use.furthermore, graphing calculators are usually more advanced. because of the specifications needed (like ram, processor) to be able to generate graphics, graphing calculators are able to support more sophisticated functions/features. some graphing calculators have a computer-algebra system, like the ti-89 titanium. some support spreadsheets. some even support programmable games. some allow for connectivity with a computer to install new programs.we have to consider another major difference: the price. graphing calculations are way more expensive than scientific calculators. i believe this has to do with the history behind graphing calculators. for example, texas instruments basically holds a monolopy over graphing calculators. school keep using tis because that is what they are familiar with.

Ucan’t change it as far as i know

When you ddos people it deosn't require any real skill and very few skids can't ddos.