iMac Introduction | Apple All-in-one Desktop Computer

Dany updated on Mar 17, 2023 | Home > Knowledge Center

The History of iMac

iMac is an Apple all-in-one desktop computer, and iMac was first published in August 1988. At that time, commentators, Mac supporters, and critics all debated and looked forward to the 1998 iMac announcement.

  • The original iMac G3 had a 4GB hard drive, a CD-ROM drive, 32MB of RAM, and a dial-up modem, and just the RAM could be upgraded.
  • The iMac G4 came up in January 2002. The display had a 40GB to 160GB hard drive and came in 15in, 17in, and 20in sizes.
  • In August 2004, Apple published iMac G5. The iMac G5 display has three options, like G4, and the hard drive was extended to 500GB.
  • Then the first Intel iMac was published in 2006, and this iMac has a bigger display. There are now 80GB and 750GB variants of the iMac hard disk.
  • Then, the iMac developed very fast. It became thinner and had a better display. New iMac will be published every 2 or 3 years.

We will introduce the latest iMac models in the following parts. Keep reading this passage, and you will learn more information about iMac appearance design.

the history of iMac

What Does 24-inch iMac Look Like

The iMac's exterior had not altered much in 13 years, and the biggest updates were small adjustments to the screen size or aspect ratio. This cycle is broken by the new 24-inch iMac's slender and colorful lineup. The 24-inch iMac was published in 2021, and the 27-inch and 21-inch Intel iMacs were replaced by it.


The 24-inch iMac is thinner, and it is only 11.5mm. The 2021 iMac is a compact and lightweight desktop computer with powerful Apple Silicon and seven color variations, including blue, pink, green, silver, yellow, orange, and purple. The colorful design attracts many iMac users to choose the 2021 iMac, which is light enough to move around.

iMac appearance


Depending on the model buyers select, the 24-inch iMac's connectors vary. The most expensive variant has two additional USB 3 ports, and the other models only have two USB 4/Thunderbolt connectors. By the way, the power connector easily attaches via magnets and with a color-matched woven cable.

iMac ports


The 23-inch iMac contains a 4.5K Retina display, and the actual diagonal screen size is 23.5 inches. It has a 4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors, 500 nits brightness, and it uses True Tone technology.

What Chips iMac Are Using

Newly released iMacs use Apple M1 chip, and the M1 chip replaces the old Intel chip. The 2020 MacBook Air, 13-inch MacBook Pro, and Mac mini with M1 CPUs have been introduced by Apple to replace the entry-level models in those lines.

An 8-core CPU with 4 high-performance cores and 4 high-efficiency cores is part of the M1 chip. High-performance cores provide the best performance for power-intensive single-threaded workloads.

Apple also published an M2 chip which is better than the M1 chip, but this M2 chip is not used for iMac yet.

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Available 24-inch iMac Models

Maybe you will buy an iMac for study or work, and you will learn detailed information about 24-inch iMacs. We are going to show you all the details in the table below:

24-inch iMac $1,299.00 24-inch iMac $1,499.00 24-inch iMac $1,699.00
4 colors  7 colors 7 colors
Apple M1 Chip Apple M1 Chip Apple M1 Chip

8-Core CPU

7-Core GPU

8-Core CPU

8-Core GPU

8-Core CPU

8-Core GPU

256GB storage

8GB unified memory

256GB storage

8GB unified memory

512GB storage

8GB unified memory

24-inch 4.5K Retina display 24-inch 4.5K Retina display 24-inch 4.5K Retina display
Two Thunderbolt / USB 4 ports Two Thunderbolt / USB 4 ports Two Thunderbolt / USB 4 ports
/ Two USB 3 ports Two USB 3 ports
/ Gigabit Ethernet Gigabit Ethernet
Magic Keyboard Magic Keyboard with Touch ID Magic Keyboard with Touch ID

iMac and MacBook, What's the Difference

It is easy to know the differences between the appearance of the iMac and MacBook, and they look totally different. As we mentioned in the first section, iMac is an all-in-one computer, and MacBook is an Apple laptop.

MacBook has two basic models, MacBook Air, and MacBook Pro. If you want to know the performance and design of iMac and MacBook, read the following information:

  • 💻Display: MacBook cannot be designed too large as a laptop. Users who choose a laptop will need the computer to be thin, light, and powerful enough. The screen of a MacBook is smaller than an iMac.
  • 💽Processor: Some MacBook Pro and MacBook Air models contain an Apple M2 chip, and some models even contain an M2 Pro and Max chip.
  • 🔋Battery: MacBooks can support 16-21 hours of battery life, and an iMac needs a stable power source, which makes it difficult to carry iMac for a business trip or travel.

In short, if you are rich enough, you should take both MacBook and iMac. If you just want to pick one between iMac and MacBook, you should think about your needs. You need a bigger screen or a portable laptop, and it is better to choose when you know your requirements.

How to Extend iMac Service Life

After getting a new iMac, you should know some tips to keep your iMac running better and longer:

  • Clean your iMac regularly. That means you should keep your iMac clean physically, and you should know the dust will shorten the service life of your iMac.
  • Make your iMac cool. Using the iMac for a long time will raise the hard disk's temperature and make your iMac overheat.
  • Update iMac frequently. The software update will keep your iMac running efficiently and keep your iMac safe.
  • Keep iMac running regularly. If you shut down your iMac for months and turn it on to work suddenly, some Mac startup issues may occur.
  • Back up data regularly. It is also a healthy habit to keep your iMac safe. If you accidentally deleted some files without any backups, you can try EaseUS Data Recovery Wizard for Mac to recover deleted photos, documents, emails, and videos.

Bottom Line

The 24-inch M1 iMac 2021 stands out in the lineup, and other Apple computers are also excellent products. If you do want to buy an iMac, be sure to get the proper keyboard, and you don't want to miss out on Touch ID.

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