Sales of Chromebooks will reach 5.2 million units in 2014, a 79 percent increase from 2013, according to research analyst firm Gartner.

So much so that by 2017, sales of the Chrome OS devices are set to nearly triple to reach 14.4 million units.

"Competition in the Chromebook market is intensifying as more vendors launch Chromebooks, with eight models in the market in 2014," says Isabelle Durand, principal analyst, Gartner.

"Now that the PC market is no longer growing strongly, vendors are searching for new business opportunities.

“They launched Chromebooks to revive interest in sub-$300 portable PCs once the netbook bubble had burst."

Demand for Chromebooks is mainly driven by the education sector in the U.S. Gartner estimates that the education sector accounted for nearly 85 percent of Chromebook sales in 2013.

In addition, of the 2.9 million Chromebooks sold during 2013, 82 percent were sold in North America, making it the major market for Chromebooks globally.

While Chromebooks are primarily used by the education sector, they will also have a place in businesses for specific workers, such as staff in banking, financial services, estate agents and hotel receptionists.

"So far, businesses have looked at Chromebooks, but not bought many," Durand adds.

"By adopting Chromebooks and cloud computing, businesses can benefit; they can shift their focus from managing devices to managing something much more important — their data."

These devices also encourage more collaboration and sharing of content. As more users work collaboratively in the cloud, collaborative working practices are likely to become more common which may further increase the appeal of Chromebooks and similar devices.

In 2011, Samsung and Acer, very consumer-focused vendors, were the first vendors to invest in Chromebooks, and were the two dominant leaders in the market in 2013.

"While there is less presence in the business market, and a limited product portfolio for midsize businesses, Chromebooks could open doors to the business market," Durand adds.

By selling 1.7 million units in 2013, Samsung led the Chromebook market globally - it was especially dominant in the education market, having the most popular devices in primary and secondary schools.

Acer, which had a 21.4 percent market share in 2013, designs Chromebooks with a consistent focus on delivering the best value for money according to Durand. It uses Intel, rather than ARM-based, CPUs because its target consumers are price-sensitive.

HP was the No. 3 vendor, with a 6.8 percent share of Chromebook shipments, and Lenovo (which did not enter the market until last year) accounted for 6.7 percent of shipments in 2013.

HP was the only vendor to launch a Chromebook with a 14-inch screen, positioning itself as a provider of solutions and services for businesses, and its large installed customer base in the business and education markets should provide it with a strong competitive advantage in the Chromebook market going forward.

Lenovo's Chromebooks are very rugged, compared with the competition, and therefore ideal for primary and secondary school pupils.

However, Durand says Lenovo needs to manage its devices portfolio in such a way as to avoid selling so many Chromebooks that it undermines sales of its other ThinkPads — which provide better margins.

Durand believes chromebooks will remain a niche market during the next five years and to reach a wider audience, vendors need to offer better features that address cloud-based usage patterns: faster connectivity, faster memory access, faster and larger solid-state drives, and strong user support in the education, business and consumer segments.

"Making a competitive Chromebook is not just a matter of hardware and price; what is most important is to show how the device's cloud-based architecture provides genuine advantages to users," Durand adds.