Capital expense, scaling | Information Systems homework help

 Please write in about 200 words in APA format with in-text citation for below questions.   

1) Define and describe a capital expense. How are capital expenses different from operational expenses? (50 words)

2) Discuss why the system maintenance phase is often the most expensive phase of the software development life cycle? (50 words) 

3) Compare and contrast vertical and horizontal scaling? (50 words)

4) Discuss how the cloud will impact future operating systems. (50 words)  

Note: You are required to use at least two-peer reviewed sources (besides textbook) to answer the above questions. 

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