1- What are the components of the IT infrastructure? List and describe the IT infrastructure components that companies need to manage. 2- What are the current trends in computer hardware platforms? 3- Describe the mobile platform under development, the consumerization of IT and cloud computing. 4- Explain how companies can benefit from virtualization, green computing, and multicore processors. 5- What are the current trends in software platforms? 6- Define and describe the concept of open source software; Also explain its benefits for business. 7- Java and HTMLS definition; Also explain why they are important. Define and describe Web services and the role that XML plays. 8- Mention and describe the three external software sources. 9= Define and describe software mashups and apps.- What are the advantages and disadvantages of cloud computing?