As the tablet and smartphone markets expand, the demographic distribution of sales has changed.

According to a Neilsen research study, between the third quarter of 2010 and the second quarter of 2011, the age of the average mobile device owner has increased. Figures from the end of last year showed 62 percent of tablet users were under 34, whereas quarter two of this year saw that number decrease to 46 percent.

One of the biggest expanding demographics in the market has been adults over the age of 55. That group increased in ownership from 10 percent to 19 percent, nearly the same share as the age group holds of the smartphone market.

A major factor in the more even distribution of device ownership may be general knowledge of the products and their capabilities. Industry insiders and those interested in the newest technology are often more likely to keep up with the latest releases and new products, and "tech savvy" consumers are stereotypically recent college grads and other 20- and 30-somethings.

Now that the technology has become more widespread in the population and is gaining in popularity, older demographic groups may continue to expand their share of ownership. The income disparity between those newly entering the workforce and the more established may mean the price of devices and mobile phone accessories is more attainable by older generations.