Forty years ago, Apple released a personal computer, the Apple 1, designed and built by Steve Wozniak. Since that day in 1976, Apple products have fundamentally changed the way we communicate and live our daily lives. Here's a look back at the evolution of Apple products across four decades, including the Apple 1, the iPod music player, iPad tablet, Apple Watch and, of course, the now-ubiquitous iPhone.
Tim Cook, chief executive officer of Apple, speaks during an Apple event at the Steve Jobs Theater at Apple Park on Sept. 12, 2018, in Cupertino, California. Apple is expected to announce new iPhones with larger screens as well as other product upgrades.
An Apple 1 computer, built in 1976, is displayed during an online auction featuring vintage tech products at the Computer History Museum on June 24, 2013, in Mountain View, California. Christie's auctioned off an original Apple 1 computer owned by Ted Perry as part of "First Bytes: Iconic Technology from the Twentieth Century," an online auction of vintage tech products.
The Macintosh Plus is the third model in the Mac line, introduced in 1986.
The Newton MessagePad hit the market in 1993.
A Power Macintosh 6500 series with Apple MultipleScan 15AV Display, released April 4, 1997, is seen in this undated file photo. At the time, the new Power Macintosh, with a microprocessor running at 300 MHz, was fastest mainstream desktop on the market.
A local journalist photographs the new Apple Computer iBook at the computer's Hong Kong launch on Oct. 27, 1999. The laptop, aimed at the student and home-use market, featured a G3 processor running at 300MHz.
Apple introduced a new family of iMac computers on Oct. 5, 1999, including the iMac DV, which stands for for "Digital Video."
Steve Jobs unveils a Titanium G4 Powerbook with a 15.2 inch screen during his keynote address at the MacWorld Expo in San Francisco on Jan. 9, 2001.
Apple introduced the new iBook, May 1, 2001 in Cupertino, California. The 4.9 pound iBook was the lightest and smallest full-featured consumer and education notebook on the market at the time.
The iPod MP3 music player was unveiled Oct. 23, 2001, at an event in Cupertino, California. The device held up to 1,000 songs.
The Macintosh iBook laptop computer was released in 2002.
A 2002 version of the iMac computer features a 17-inch monitor.
Apple launched the iTunes Music Store on April 28, 2003, with songs for 99 cents. Apple CEO Steve Jobs described the store as a way for consumers to legally download music while protecting the rights of the artists and music companies. The store featured over 200,000 songs.
The 2004 version of the successful Apple iMac is displayed at the Apple Expo in Paris, France, on Aug. 31, 2004, on the day of its launch.
The U2 iPod holds up to 5,000 songs and features a black enclosure with a red click wheel and custom engraving of U2 band member signatures.
The new Apple Computer iPod mini is displayed during the Macworld Expo trade show on January 6, 2004, in San Francisco, California. The half-inch-thick iPod mini, the size of a business card, has 4 gigabytes of storage.
An iPod with video capabilities is displayed at a launch ceremony on Nov. 3, 2005, in Seoul, South Korea. It featured a 30 GB model with the capacity to store up to 7,500 songs or 25,000 photographs, and 60 GB model with the capacity to store up to 15,000 songs or 25,000 photographs.
The iPod Nano is pictured on Oct. 20, 2005.
A South Korean promoter shows the new iPod shuffle during its unveiling press conference in Seoul, on Jan. 20, 2005.
A iMac with Intel Core Duo processor is seen on display at the 2006 Macworld on Jan. 10, 2006, in San Francisco, California.
A woman holds a new iPod Shuffle in front of a display of iPod Nanos at an Apple media event Sept. 12, 2006, in San Francisco, California.
A MacBook Pro laptop with Intel Core Duo processor is seen on display during the 2006 Macworld Jan. 10, 2006, in San Francisco, California.
Steve Jobs holds up the first ever iPhone, which was introduced at Macworld on Jan. 9, 2007, in San Francisco, California. The iPhone combines what was described at the time as "a mobile phone, a widescreen iPod with touch controls and an Internet communications device with the ability to use email, web browsing, maps and searching."
A customer tries out the new Apple Video iPod Nano at the Gateway Apple Store on Sept. 10, 2007, in Salt Lake City, Utah.
Apple TV is seen on display in an Apple store March 23, 2007, in New York City.
The iPod Nano Gen 4, introduced in 2008, was the thinnest iPod released by Apple.
A customer looks over an Apple iPhone 3G at the Best Buy store in Orem, Utah, Jan. 21, 2009. The 3G was released in 2008.
Customers celebrate after buying the first generation iPad at the Apple shop on George Street on May 28, 2010, in Sydney, Australia. Apple's new tablet media device went on sale in nine countries around the world in May 2010 following its launch in the United States in April earlier that year.
In what became a stroke of inspiration for Apple and Samsung, the iPod Nano 6 paved the way as a predecessor of the smartwatch even when it wasn't designed to be one. This nano came with a headphone jack for music, works as a pedometer and could display pre-loaded photos.
Apple Watches in rose gold and gold finishes are displayed at an Apple store in New York on Sept. 10, 2015.
People take a look at the new iPad Pro during an event at Apple headquarters on March 21, 2016 in Cupertino, California.
A rose gold iPhone SE, right, and an iPhone 6S Plus are seen at an Apple Store on March 31, 2016, in Hangzhou, China. The new 4-inch iPhone SE packs almost all the power and features of the iPhone 6s into a package as small as, and even more affordable than, the iPhone 5s it replaces.
Apple unveiled the iPhone 7, the Apple Watch 2, and wireless EarPods, featuring water-resistant designs, upgraded camera systems and faster processors, during an event in San Francisco, California, on Sept. 7, 2016.
Phil Schiller, Apple's senior vice president of worldwide marketing, speaks about the TouchBar, a new feature on Apple's redesigned MacBook Pro during an announcement of new products on Oct. 27, 2016, in Cupertino, California.
Announced in June of 2017, the HomePod is a speaker that will become available in December of 2017. The Homepod is said to offer voice control, Siri intelligence, remote access and home automations through the Apple Home app.
The iPhone 8 is unveiled at the Steve Jobs Theater on the new Apple campus in Cupertino, California, as Phil Schiller, Apple's senior vice president of worldwide marketing, speaks to a crowd.
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Apple CEO Tim Cook introduces iPhone X during the Apple launch event on Sept. 12, 2017 in Cupertino, California. Apple Inc. unveiled its new iPhone 8, iPhone X, iPhone 8 Plus, and the Apple Watch Series 3 at the new Apple Park campus.
Charles Rex Arbogast/AP
The new Apple iPhone X sits on display as consumers line up to buy the phone at the new Apple Michigan Avenue store along the Chicago River Friday, Nov. 3, 2017, in Chicago.
Jeff Williams, COO of Apple, Inc., introduces the new Apple Watch Series 4 on Sept. 12, 2018. The Watch is now able to <a href="/news/tech/Apple-Event-2018-iPhone-Announcement-493053601.html" target="_blank">detect falls, abnormal heart rates and perform an electrocardiogram</a>, according to Apple.
Tim Cook, chief executive officer of Apple, speaks during an Apple event at the Steve Jobs Theater at Apple Park on Sept. 12, 2018, in Cupertino, California.
Apple introduced the <a href="/news/tech/Apple-Event-2018-iPhone-Announcement-493053601.html" target="_blank">iPhone XS, iPhone XS Max and the lower tier iPhone XR</a> in 2018. The iPhone XS Max, at its <a href="https://www.cnbc.com/2018/09/12/iphone-xs-announced.html" target="_blank">$1,099 starting price</a>, is the most expensive iPhone yet.