Upgrading an existing system can sometimes be a wise thing to do, but sometimes the upgrade costs more than the system is worth. Also, if existing components are old, they might not be compatible with components you want to use for the upgrade. A friend, Renata, asks your advice about several upgrades she is considering. Answer these questions:

1. Renata has a four-year-old desktop computer that has a Core2 Duo processor and 2 GB of memory. It does not have an eSATA port. She wants to use an external hard drive that has an eSATA interface to her computer to back up and store her entertainment media. How would she perform the upgrade, and what is the cost? Save or print webpages to support your answers.

2, Her computer has one USB port, but she wants to use her USB printer at the same time she uses her USB scanner. How can she do this, and how much will it cost? Save or print webpages to support your answers.

3. Renata also uses her Windows 8 computer for gaming and wants to get a better gaming experience. The computer is using onboard video and has an empty PCI Express video slot. What is the fastest and best graphics card she can buy? How much does it cost? Save or print webpages to support your answer.

4. What is the total cost of all the upgrades Renata wants? Do you think it is wise for her to make these upgrades or would it be wiser to purchase a new system? How would you explain your recommendation to her?