$5-3$ What are the current trends in computer hardware platforms?

Describe the evolving mobile platform, consumerization of IT$,$ and cloud computing.

Explain how businesses can benefit from virtualization, green computing, and multicore processors.

$5-4$ What are the current computer software platforms and trends?

Define and describe open source software and Linux and explain their business benefits.

Define Java, JavaScript, HTML$,$ and HTML$5$ and explain why they are important.

Define and describe web services and the role played by XML$.$

Name and describe the three external sources for software.

Define and describe software mashups and apps.

$5-5$ What are the challenges of managing IT infrastructure and management solutions?

Describe what is meant by the term scalability.

Explain why the level of IT infrastructure investment is a crucial decision for an organization.