Walker was gathering information on Ultra HD 4K and LCD TVs because he wanted to purchase one for his household. He bought several electronic product magazines, visited several electronics stores, searched the Internet, and paid attention to the ads in the newspaper to learn more about this product. However, he was confronted with so much information that he could not attend to all of it. In fact, he it got to the point that he would not attend to it and became frustrated. This is an example of

Information overload

Explanation:

  The information overload is one of the type of data explosion that finds more difficulty in understanding the various types of problems and making the decision more effectively on the basis of the given information or data about the specific issue.

According to the given question, Walker is basically start gathering the various type of information about the LCD Television as he wants to purchase and then he start gathering the data from the different magazines, internet and the electronic stores.

Therefore, Due to huge data he got confused and also got frustrated due to the information overloading.