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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Pompeii, Capri & the Bay of Naples
Seven Cities of Italy
Burgundy, the River Rhone & Provence
Prague, Budapest and Vienna
Lake Garda
Minoan Crete and Santorini
Prices correct as of 15 May 2015
The long walk west: they fled war in Syria, only to get held up in Hungary – now hundreds of refugees have set off on foot for Austria

They fled war in Syria...

...only to get stuck and sidetracked in Hungary
From The Prisoner to Mad Men, elaborate title sequences are one of the keys to a great TV series

Title sequences: From The Prisoner to Mad Men

Elaborate title sequences are one of the keys to a great TV series. But why does the art form have such a chequered history?
Giorgio Armani Beauty's fabric-inspired foundations: Get back to basics this autumn

Giorgio Armani Beauty's foundations

Sumptuous fabrics meet luscious cosmetics for this elegant look
From stowaways to Operation Stack: Life in a transcontinental lorry cab

Life from the inside of a trucker's cab

From stowaways to Operation Stack, it's a challenging time to be a trucker heading to and from the Continent
Kelis interview: The songwriter and sauce-maker on cooking for Pharrell and crying over potatoes

Kelis interview

The singer and sauce-maker on cooking for Pharrell
Refugee crisis: David Cameron lowered the flag for the dead king of Saudi Arabia - will he do the same honour for little Aylan Kurdi?

Cameron lowered the flag for the dead king of Saudi Arabia...

But will he do the same honour for little Aylan Kurdi, asks Robert Fisk
Our leaders lack courage in this refugee crisis. We are shamed by our European neighbours

Our leaders lack courage in this refugee crisis. We are shamed by our European neighbours

Humanity must be at the heart of politics, says Jeremy Corbyn
Joe Biden's 'tease tour': Could the US Vice-President be testing the water for a presidential run?

Joe Biden's 'tease tour'

Could the US Vice-President be testing the water for a presidential run?
Britain's 24-hour culture: With the 'leisured society' a distant dream we're working longer and less regular hours than ever

Britain's 24-hour culture

With the 'leisured society' a distant dream we're working longer and less regular hours than ever
Diplomacy board game: Treachery is the way to win - which makes it just like the real thing

The addictive nature of Diplomacy

Bullying, betrayal, aggression – it may be just a board game, but the family that plays Diplomacy may never look at each other in the same way again
Lady Chatterley's Lover: Racy underwear for fans of DH Lawrence's equally racy tome

Fashion: Ooh, Lady Chatterley!

Take inspiration from DH Lawrence's racy tome with equally racy underwear
8 best children's clocks

Tick-tock: 8 best children's clocks

Whether you’re teaching them to tell the time or putting the finishing touches to a nursery, there’s a ticker for that
Charlie Austin: Queens Park Rangers striker says ‘If the move is not right, I’m not going’

Charlie Austin: ‘If the move is not right, I’m not going’

After hitting 18 goals in the Premier League last season, the QPR striker was the great non-deal of transfer deadline day. But he says he'd preferred another shot at promotion
Isis profits from destruction of antiquities by selling relics to dealers - and then blowing up the buildings they come from to conceal the evidence of looting

How Isis profits from destruction of antiquities

Robert Fisk on the terrorist group's manipulation of the market to increase the price of artefacts
Labour leadership: Andy Burnham urges Jeremy Corbyn voters to think again in last-minute plea

'If we lose touch we’ll end up with two decades of the Tories'

In an exclusive interview, Andy Burnham urges Jeremy Corbyn voters to think again in last-minute plea