The exact details of each generation vary depending on the reporting organization, but the basic facts remain. Here are descriptions of the last five.

1925-1945: Population est. 52 million

This generation includes those who were too young to join the service during World War II. Many had fathers who served in World War I. Generally recognized as the children of the Great Depression, this event during their formative years had a profound impact on them.

1946-1964: Population est. 77 million

In general, boomers are associated with a rejection or redefinition of traditional values; however, many commentators have disputed the extent of that rejection, noting the widespread continuity of values with older and younger generations. One of the features of boomers is that they tend to think of themselves as a special generation, very different from those that came before them.

1965-1977: Population est. 46 million

This generation has the traits of independence, resilience and adaptability. Generation X feels strongly that they don't need someone looking over their shoulder. At the same time, they expect immediate and ongoing feedback, and are equally comfortable giving feedback to others. Other traits include working well in multicultural settings, desire for some fun in the workplace and a pragmatic approach to getting things done.

1977 - 2002: Population est. 80 million

Millennials are typically team-oriented, band together and socialize rather than pair off. They work well in groups, preferring this to individual endeavors. They're good multitaskers, having juggled sports, school and social interests as children, so expect them to work hard. They need mentoring, no matter how smart and confident they are. And they'll respond well to personal attention. Because they appreciate structure and stability, mentoring Millennials should be more formal.

Highly connected, many of this generation have had lifelong use of communications and media technologies such as the World Wide Web, instant messaging, text messaging, MP3 players, mobile phones and YouTube, earning them the nickname "digital natives." They are more individualistic and have what some call an "acquired Attention Deficit Disorder" since their dependency on technology is high and attention span is much lower, as opposed to previous generations who read books and other printed material, along with watching live television.

Abbreviated as BA, business analytics is the combination of skills, technologies, applications and processes used by organizations to gain insight into their business based on data and statistics to drive business planning. Business analytics is used to evaluate organization-wide operations and can be implemented in any department from sales to product development to customer service. Business analytics solutions typically use data, statistical and quantitative analysis and fact-based data to measure past performance to guide an organization's business planning. www.webopedia.com

Web-based processing, whereby shared resources, software and information are provided to computers and other devices (such as smartphones) on demand over the Internet. www.wikipedia.com

Short for electronic discovery, e-discovery is a term used to describe the compiling, storing and securing of digital information, such as e-mail, files and other data. Growth in this market is fueled by the need for corporations to comply with amendments to the Federal Rules of Civil Procedure (FRCP) covering the discovery of digital information. www.webopedia.com

Holographic storage is a mass storage technology that uses three-dimensional holographic images to enable more information to be stored in a much smaller space. The technology uses holograms which are created when a light from a single laser beam is split into two beams: the signal beam (which carries the data) and the reference beam. In holographic storage, at the point where the reference beam and the data-carrying signal beam intersect, the hologram is recorded in the light-sensitive storage medium. www.webopedia.com

The scientific study of elections www.m-w.com

An Internet search engine that indexes and searches blogs. Technorati tracks blogs and other forms of citizen media, including video blogs (vlogs), podcasts and amateur movies and videos in real time. All this activity is monitored and indexed within minutes of posting. www.webopedia.com