Apple's biggest moments (pictures)

Has Apple lost its edge? That's the question we're asking in the latest episode of Adventures in Tech, so click play on the link below to hear our verdict. We want to know what you think too, but if you need a little inspiration before drawing your own conclusions, click through to check out our snaps of Apple's most significant moments and devices.

Behold, the first Apple computer, built by Steve Jobs and Steve Wozniak and launched in April 1976.

Today, original Apple I models fetch huge amounts at auctions. Here's a look at its insides.

This is the Apple II Plus, introduced in 1979, offering improved graphics power compared to the first Apple II.

Steve Jobs on stage, with a 1976 photo of himself and Wozniak on show in the background.

The Apple Lisa, which gave us an early taste of a personal computer with a graphical user interface. It featured a 68k CPU and support for 2MB RAM.

Rival schools: An early snap of Jobs, and Microsoft co-founder Bill Gates at a portrait session in San Jose, Calif., in 1991.

Steve Jobs stands with a Macintosh.

Jobs was fired from Apple in 1985, and for roughly a decade the company struggled, producing several tepid products, including the Apple Newton series of PDAs. This handheld used handwriting recognition software, but was discontinued after five years thanks to poor sales.

Steve Jobs returned to Apple in 1997, and a year later the company produced the iMac all-in-one computer. The colourful iMac G3 proved a hit.

Apple designer Jonathan Ive and Jobs share a giggle next to an iMac.

In 2001, we got the first iPod, which packed an ingenious interface and loads of storage space for songs.

The third-generation iPod hit shelves in 2003, and packed glowing, touch-sensitive buttons.

2004 saw the arrival of the iPod mini.

In 2007, the iPod evolved into the iPod touch, borrowing its design from the newly-minted iPhone.

The iPod and iPhone were proving popular, but Apple kept its computing business fresh with the shockingly slim MacBook Air in 2008.

Today Apple is perhaps best known for the iPhone. Here's the first model, revealed in 2007. It was designed to combine a mobile phone with a widescreen touch-capable iPod, that could also handle e-mail and Web browsing.

The first iPhone was lacking plenty of features, but its touchscreen technology was very impressive.

Google's then-CEO Eric Schmidt made an appearance when the first iPhone was revealed. "This product is gonna be hot," Schmidt observed. Today Google's Android operating system provides fierce competition for Apple's iOS.

One year later, we saw Apple show off the iPhone 3G.

In 2009, the faster iPhone 3GS was revealed.

2010 saw Apple trying something new with the larger iPad tablet.

The iPhone 4 in 2010 introduced the pixel-packing Retina display, as well as a swanky new design.

The iPad 2 was slimmer and lighter, and introduced a rear-facing camera.

New CEO Tim Cook took the stage in October 2011, to reveal the speedier iPhone 4S. While it proved extremely popular, this mobile was criticised for looking very similar to the iPhone 4. The 4S introduced Apple's Siri voice-controlled assistant.

Steve Jobs died on October 5, 2011, due to complications from a relapse of his pancreatic cancer.

Tim Cook, seen here with Jobs, had already taken over as CEO, and remains at the head of Apple.

2012 brought with it a new iPad -- one with a sharper Retina display.

The iPhone 5 increased the iPhone's screen size to 4 inches.

Steve Jobs had previously criticised smaller tablets, but in 2012 Apple showed off the iPad mini, to compete with 7-inch devices from Google and Amazon. (Photo by Kevork Djansezian/Getty Images)

In autumn 2013, Apple added a splash of colour to the iPhone with the 5C. This plastic-built smart phone was rumoured to be a cheap, entry-level mobile, but ended up being a rather pricey device.

The iPhone 5S is the current high-end iPhone, and features a fingerprint scanner for unlocking the phone, or verifying purchases from iTunes or the App Store.

Apple's newest product is the skinny iPad Air. It's the most powerful iPad yet, but does it bring enough innovation to the table? Let me know whether you think Apple has lost its edge, and click the link below to hear our verdict.