News Bitcoin is an experimental digital currency that has gained popularity worldwide

James Howells accidentally threw away a hard drive containing the cryptographic "private key" needed to access the digital currency

Sony's issues guide to PS4's "Blue Light of Death" error

Sony says these "isolated incidents [...] represent a very small percentage of total units shipped to consumers to date"

Why filling hard drives with helium can boost storage capacity by 50%

The latest innovation in hard drive technology has taken years to perfect but means quieter, more energy efficient hard drives that fit more data in the same space

'Digital downtime' means we spend more than five days each year waiting for computers to load

Slow PCs and laptops have entered the top seven list of our everyday annoyances

Elsener with the hugely popular knife: he served the family firm for 70 years before handing over to his son, Carl IV

Carl Elsener: Businessman who transformed the Swiss Army Knife into a global product

Starting as a teenage apprentice cutler, Carl Elsener went on to turn a relatively simple penknife into the global phenomenon that is the multi-functional Swiss Army Knife. He worked for the Swiss family firm Victorinox for 70 years, 57 of them as CEO, and retained the honorary, almost spiritual title "Senior Leader" until his death at the age of 90.

The Sound of One Hand Killing, By Teresa Solana

Teresa Solana is already known to us, as are her terrible twins, through two previous crime novels. Again translated by Peter Bush, The Sound of One Hand Killing is, however, the first in the series in which Solana and her twin Barcelona private eyes, Borja ("Pep") and Eduard Masdeu, actually meet on the page.

The device doesn’t do much that you couldn’t do by hooking your television up to an Android phone

A Week With: Android Mini 4.0

A smart-TV device you'd have to be an android to love

Elite: the old and the new

30 years on, game fans put up cash for sequel to Elite

Computer game flies again after Kickstarter crowdsourcing hit

Jessica's recipe bag: 'There were vegetables, there was cheese, there was meat, there was fish – there was even a lime for my gin and tonic. The cost? £69.'

On The Menu: Jessica's Recipe Bag; Joseph Joseph; Da Mhile whisky; Paxton and Whitfield; Coya restaurant

This week I've been eating... Jessica's Recipe Bag

The 10 Best tough gadgets

If you regularly wreck mobiles, need a watch that can take a kicking or fancy a water-proof MP3, check these out...

Coroner criticises MI6 investigation into spy Gareth Williams' death

MI6 and a senior detective were accused today of failing to disclose vital evidence in the death riddle of spy Gareth Williams.

Win a motion-activated outdoor security camera worth £119

When you're asleep or away from your house, do you worry about looking after your property? What are you doing to protect against vandalism, break-ins, or car and garden theft?

The latest of the Asterix films,starring Gérard Depardieu, left, could be destroyed in the dispute

Asterix and the big fight to save 36 French films

An unwelcome silence threatens the next film of the French actor, Jean Dujardin, whose silent movie, The Artist, is wowing audiences around the globe.

Intel warns of diluted profits as Thai floods hit its supplies

The computing giant Intel Corp has become the latest technology firm to warn its profits will take a hit because of the continued fallout from Thailand's autumn floods.

Market Report: Pace switched on by good news from US supplier

Punters were plugging back into Pace yesterday as the beleaguered set-top box maker – which has issued three profit warnings in a year – was finally on the receiving end of some good news.

The Misogynist, By Piers Paul Read

Over 30 years on from his 1979 bestseller A Married Man, Piers Paul Read revisits the mid-life crisis. Geoffrey Jomier is a retired barrister living in Hammersmith.

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Day In a Page

Burgundy, the River Rhone & Provence – MS Swiss Corona - seven nights from £999pp
Lake Maggiore, Orta and the Matterhorn – seven nights from £899pp
Sicily – seven nights from £939pp
Pompeii, Capri and the Bay of Naples - seven nights from £799pp
Istanbul Ephesus & Troy – six nights from £859pp
Mary Rose – two nights from £319pp
'I’ll tell you what I would not serve - lamb and potatoes': US ambassador hits out at stodgy British food served at diplomatic dinners

'I’ll tell you what I would not serve - lamb and potatoes'

US ambassador hits out at stodgy British food
Radio Times female powerlist: A 'revolution' in TV gender roles

A 'revolution' in TV gender roles

Inside the Radio Times female powerlist
Endgame: James Frey's literary treasure hunt

James Frey's literary treasure hunt

Riddling trilogy could net you $3m
Fitbit: Because the tingle feels so good

Fitbit: Because the tingle feels so good

What David Sedaris learnt about the world from his fitness tracker
Saudis risk new Muslim division with proposal to move Mohamed’s tomb

Saudis risk new Muslim division with proposal to move Mohamed’s tomb

Second-holiest site in Islam attracts millions of pilgrims each year
Alexander Fury: The designer names to look for at fashion week this season

The big names to look for this fashion week

This week, designers begin to show their spring 2015 collections in New York
Will Self: 'I like Orwell's writing as much as the next talented mediocrity'

'I like Orwell's writing as much as the next talented mediocrity'

Will Self takes aim at Orwell's rules for writing plain English
Meet Afghanistan's middle-class paint-ballers

Meet Afghanistan's middle-class paint-ballers

Toy guns proving a popular diversion in a country flooded with the real thing
Al Pacino wows Venice

Al Pacino wows Venice

Ham among the brilliance as actor premieres two films at festival
Neil Lawson Baker interview: ‘I’ve gained so much from art. It’s only right to give something back’.

Neil Lawson Baker interview

‘I’ve gained so much from art. It’s only right to give something back’.
The other Mugabe who is lining up for the Zimbabwean presidency

The other Mugabe who is lining up for the Zimbabwean presidency

Wife of President Robert Mugabe appears to have her sights set on succeeding her husband
The model of a gadget launch: Cultivate an atmosphere of mystery and excitement to sell stuff people didn't realise they needed

The model for a gadget launch

Cultivate an atmosphere of mystery and excitement to sell stuff people didn't realise they needed
Alice Roberts: She's done pretty well, for a boffin without a beard

She's done pretty well, for a boffin without a beard

Alice Roberts talks about her new book on evolution - and why her early TV work drew flak from (mostly male) colleagues
Get well soon, Joan Rivers - an inspiration, whether she likes it or not

Get well soon, Joan Rivers

She is awful. But she's also wonderful, not in spite of but because of the fact she's forever saying appalling things, argues Ellen E Jones
Doctor Who Into the Dalek review: A classic sci-fi adventure with all the spectacle of a blockbuster

A fresh take on an old foe

Doctor Who Into the Dalek more than compensated for last week's nonsensical offering