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The TouchSmart All-in-One allows users to work with photos, music, video, the internet and television by tapping or swiping the screen, according to HP, and will start at around £660.

The PCs will launch in 17 countries in July, including the UK.

The PCs will start retailing at just £50

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more than its main competitor, the Apple's iMac, which do not have a touchscreen, but until now, has been perceived as pioneer in making manipulating digital media easier.

HP's Personal Systems group executive VP, Todd Bradley, said he aimed to set a trend and create a new market.

"We don't think about this as a niche. We think about it as a global product that will inspire demand and drive desirability," he explained. "Our ability to lead is very important."

Rob Enderle, chief analyst with technology research firm the Enderle Group, commented that HP's new products, could put it out of the reach of rivals. "It may not be possible for a competitor to catch it," he said.

Analysts reckon the HP TouchSmart could appeal to social groups such as families or students sharing an apartment who want a PC that could also double as a group messageboard or television set.