The ultimate Apple iPhone quiz
The iPhone has changed a lot over the last nine years. How closely have you been paying attention?
Q: What iPhone model is Steve Jobs introducing in this photo?
Hint: It was the first generation of the Apple iPhone to have a glass back.
A: iPhone 4
The iPhone 4 was announced on July 7, 2010, at the Apple World Wide Developers Conference. It was the first iPhone ever offered for sale by Verizon, ending Apple's exclusivity deal with AT&T.
Q: Which iPhone model was released in the color green?
It's been the only iPhone model to date that uses the bold color.
A: iPhone 5C
The iPhone 5C, available in blue, green, yellow, pink and white, was released in the U.S. on Sept. 20, 2013.
Q: Can you identify this iPhone just by looking at its rear?
The plasticky, white backing of the phone should be a giveaway.
A: iPhone 3GS
The third-generation iPhone 3GS, released on June 19, 2009, was the first iPhone to be released in white. It was the also the first model to feature voice controls.
Q: It's so cute and tiny! What is it?
The rear of this phone is silver, with a black band at the bottom.
A: The original iPhone
The original iPhone cost a whopping $600 (with a two-year contract, later reduced to $400) when it launched on June 29, 2007, but that didn't stop people from forming a quarter-mile-long line at Apple's flagship store in NYC to be the first to get it.
The device was revolutionary, of course, but many criticized its lack of 3G connectivity at the time.
Q: What is the first iPhone model to use Lightning cables?
Before this, iPhones used larger 30-pin dock connectors.
A: iPhone 5
The phone, released on Sept. 21, 2012, was also Apple's first to have a 4-inch screen.
Q: Only one iPhone model comes in this shape and color. What is it?
Hint: It also has a 4-inch screen.
A: iPhone SE
The iPhone SE, released on March 31, 2016, is based on the iPhone 5S design. Unlike the iPhone 5S, however, the iPhone SE is available in the Rose Gold color.
Q: "Pardon me, sir. That phone in your hand, what is it?"
Certainly no other Apple smartphone looks quite like this one.
A: iPhone 7
The new iPhone 7 features a dual rear camera and upgraded hardware. It doesn't have a headphone jack, though, as the phone's critics love to note.
Q: What was the first iPhone model released in gold?
Hint: Its home button was surrounded by a metallic ring.
A: iPhone 5S
This was also the first iPhone model to have a built-in fingerprint scanner.
Q: What iPhone model is this?
The presence of Siri on the device is a big hint; this is the first phone she ever appeared on.
A: iPhone 4S
Siri was a major selling point of the Apple iPhone 4S, released Oct. 14, 2011.
According to Apple CEO Tim Cook, the "S" in the phone's name stands for Siri.