Gamdahl's law is as applicable to software as it is to hardware. an oft-cited programming truism states that a program spends 90% of its time executing 10% of its code. thus, tuning a small amount of program code can often time have an enormous effect on the overall performance of a software product. determine the overall system speedup if: a. 90% of a program is made to run 10 times as fast (900% faster). b. 80% of a program is made to run 20% faster.

1. web and mobile applications allow users to be actively engaged in an online activity. a true b false 2. some examples of business applications purposes are to collaborate, share files, meet virtually in real-time, and accept payments. a true b false 3. an education application would most likely do which of the following? a allow users to watch popular movies and tv shows b connect users with social and business contacts c confirm users' travel plans d teach users a new language 4. a uniform resource locator (url) is how the internet knows where to take users when an address is typed into a browser. a true b false 5. deon is required to provide the citation information for his sources. what type of information should he collect from his sources? a author name, title, date of publication, date of access, url b connections to background information c interesting facts and statistics d notes on important information