3 - Information Systems Questions

Computer and Number Systems

1. (10 pt) You have been hired to develop a website-based sales system for a large international retail firm. List and describe at least four features that are specific to the Web design of your system and customer service important to consider if your system is to be successful at attracting and keeping customers living outside of the US. Include not only characteristics of the user interface, but those issues that must be uniquely addressed to successfully service your non-US customers.

2. (2.5 pt each) In order to receive credit for these problems, you must show all of the steps you took to arrive at your answers.

(c) Convert the following decimal number to binary: 21842

(d) Convert the following binary number to decimal: 11000111011.101

(c) Convert the following hexadecimal number to decimal: CA97

(d) Convert the following binary number to hexadecimal: 1110011111011010100

4. (10 pt) Define memory cache write-through and write-back techniques and describe the advantages and disadvantages of each.

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