Simplicity Computers, a new company whose directors include former Blue Peter presenter Valerie Singleton, has launched a range of PCs designed for people aged over 50 and who have no computer experience.

The 'Simplicity' computers do not run Windows, instead using a version of the free Linux operating system and a special simplified interface called Eldy.

Eldy provides a way to send and receive emails, surf the web and create simple text documents. It has a simple interface based around large buttons, but the size of the text cannot be further increased by the user.

The computers also include 17 video tutorials, presented by Ms Singleton, explaining how to use each part of the software. When started up for the first time the computer automatically plays the introductory video, which demonstrates how to use the keyboard and mouse.

Two models are available. The Simplicity 100 uses an AMD Sempron processor, while the smaller Simplicity 200 uses a dual-core Intel Atom chip. Both are sold alone, for £299 and £389 respectively, or in a kit with a screen, keyboard and mouse for £436 and £526.

Both the Linux Mint operating system and a different version of the Eldy software used by the Simplicity computers can be downloaded at no cost, but Simplicity Computers say the inclusion of training videos with each PC mean its computers will cost less than a Windows computer and the training needed to use it.

"Our tuition is included in the price," said company director Guy Wigley. " We think we are saving people at least £200 per machine."

The computers have been generally well received by groups representing older computer users.

"It is pricey," said Bob Holmes of Digital Unite, organisers of Silver Surfers' Day, "but my feeling is that it would encourage people put off by the complexity of Windows PCs to use a computer."

A spokesperson for Age Concern said: "Anything that simplifies and facilitates older people getting online is to be applauded, and will help to bridge the digital divide between those who are online and those who miss out on all the benefits the internet has to offer."

[Updated 12/11/09 - amended information about Eldy software]