An iMac is Apple's all-in-one desktop computer with the screen built into the machine
An iMac is a desktop computer made by Apple where the monitor and the processing unit are combined into a single device. Unlike traditional desktops where you buy the tower and screen separately, an iMac arrives as one unit — you plug it in, connect a keyboard and mouse, and start working. The screen is the back half of the machine; all the computing parts sit behind the display.
Apple currently makes iMacs in two sizes: 24 inches and 27 inches, measured diagonally across the screen. The 24-inch model is lighter and takes up less desk space. The 27-inch model gives you more room to work with multiple windows open at once. Both use Apple's own processors — the M4 chip in the 24-inch and the M4 Pro or M4 Max in the 27-inch — which handle everyday tasks like email, web browsing, document editing, photo work, and video editing without slowing down.
Key Takeaways
- An iMac combines the monitor and computer into one device, so you need less desk space than a traditional tower-and-screen setup.
- iMacs run macOS, Apple's operating system, which is different from Windows and Linux and works only on Apple hardware.
- The 24-inch iMac costs less and fits smaller desks; the 27-inch offers more screen space and more powerful processors for demanding work.
- iMacs are difficult to upgrade or repair yourself because the screen is fused to the case, so you should plan to keep one for several years.
- An iMac works well for creative work, programming, and everyday computing, but gaming performance lags behind Windows machines at the same price.
How an iMac differs from a Windows desktop or laptop
An iMac runs macOS, Apple's operating system, while most other desktops run Windows (made by Microsoft) or Linux. This means software written for Windows will not run on an iMac without extra tools. If you use specific programs for work — accounting software, design tools, or industry-specific applications — you need to check whether they are available for macOS before buying.
iMacs are also more expensive than comparable Windows desktops. A 24-inch iMac with a base processor starts around $1,500. A Windows desktop with similar processing power might cost $800 to $1,200. You pay more for the Apple brand, the design, and the integration between hardware and software. If budget is your main concern, a Windows desktop or laptop often gives you more computing power for the money.
Unlike laptops, an iMac stays on your desk — it is not portable. If you need to move between locations or work while traveling, a laptop (Mac or Windows) is more practical. An iMac is built for a fixed workspace where you want a large screen and do not need to move the machine.
What's inside an iMac and how it performs
Current iMacs use Apple's M-series chips, which are processors designed specifically for Apple computers. The M4 in the 24-inch iMac handles web browsing, email, document work, photo editing, and light video editing smoothly. The M4 Pro and M4 Max chips in the 27-inch model are faster and better for heavy video editing, 3D rendering, and programming work that involves compiling large amounts of code.
All iMacs come with solid-state drives (SSDs) instead of older spinning hard drives, which means the machine starts up quickly and files open without delay. Storage options range from 256 gigabytes to 2 terabytes depending on the model and configuration you choose. RAM (memory) starts at 8 gigabytes and can go up to 24 gigabytes or more, which affects how many programs you can run at once without slowdown.
For gaming, iMacs are adequate for older games and less demanding titles, but they do not match the gaming performance of Windows machines with dedicated graphics cards at the same price. If gaming is a priority, a Windows desktop or gaming laptop is a better choice.
The display and design of an iMac
The iMac screen is a major selling point. Both the 24-inch and 27-inch models use high-resolution displays with vibrant colors, which makes them popular with photographers, designers, and video editors. The 24-inch screen has a 4.5K resolution; the 27-inch has a 5K resolution. Both are bright enough for color-critical work and look sharp for everyday use.
The design is minimalist — a thin aluminum frame with a white back and a stand that takes up little desk space. The 24-inch iMac comes in multiple colors (silver, green, yellow, orange, pink, purple, and blue), while the 27-inch is silver only. The design appeals to people who value aesthetics and want a computer that looks intentional on their desk rather than purely functional.
Why an iMac is difficult to upgrade or repair
Unlike traditional desktop towers where you can open the case and swap out the hard drive, RAM, or graphics card, an iMac is sealed. The screen is glued to the aluminum frame, and accessing internal parts requires specialized tools and skills. This means if something breaks — the hard drive fails, the RAM stops working, or the power supply dies — you typically need to send it to Apple or an authorized repair shop, which is expensive.
This design choice keeps the iMac thin and clean-looking, but it also means you should think of it as a device you will keep for several years without major internal changes. If you like building or upgrading computers yourself, a Windows desktop is a better fit. If you want simplicity and do not plan to open the case, an iMac works well.
Cost and what you get for the price
A 24-inch iMac with base specs (M4 processor, 256 GB storage, 8 GB RAM) costs around $1,500. Adding more storage or RAM increases the price. A 27-inch iMac with an M4 Pro processor starts around $1,800 and goes higher with upgrades. These prices do not include the keyboard and mouse, which Apple sells separately (or you can use third-party options).
For comparison, a Windows desktop with similar processing power costs $800 to $1,200. A MacBook Air (Apple's laptop) starts around $1,200 and offers portability. The iMac's price reflects the all-in-one design, the high-quality screen, and the integration with other Apple devices if you own an iPhone, iPad, or Apple Watch.
If you already use Apple products and want seamless integration, or if you work in creative fields where macOS is standard, the iMac price makes more sense. If you are budget-conscious or need Windows-specific software, a Windows desktop is the more practical choice.
Who should buy an iMac
An iMac works well for photographers, video editors, graphic designers, and programmers who value a high-quality display and reliable performance. It is also a solid choice for anyone already invested in Apple's ecosystem — if you own an iPhone, iPad, or Apple Watch, an iMac integrates smoothly with those devices for file sharing, messaging, and continuity features.
An iMac is less suitable if you need Windows-specific software, play modern games, or want to upgrade components yourself. It is also overkill if you only need basic web browsing and email — a less expensive Windows desktop or even a Chromebook would serve that purpose. And if you need portability, a laptop (Mac or Windows) is the right choice.
Frequently Asked Questions
Can I use an iMac with Windows?
Not directly — iMacs run macOS only. You can install Windows using virtualization software (which runs Windows inside macOS) or Boot Camp (on older Intel-based iMacs), but this is complex and slows performance. If you need Windows, a Windows desktop is simpler.
How long does an iMac last?
Most iMacs remain usable for 5 to 7 years with normal use. Apple typically supports macOS updates for about 5 to 6 years after release. After that, your iMac still works but may not run the newest software or receive security updates.
Is an iMac good for video editing?
Yes, especially the 27-inch with an M4 Pro or M4 Max chip. The high-resolution screen is ideal for color work, and the processor handles 4K video smoothly. The 24-inch with a base M4 can edit video but may slow down with heavy effects or multiple layers.
What comes in the box with an iMac?
An iMac arrives with the computer, a power cable, and a USB-C to USB-C cable. The keyboard and mouse are sold separately. You can use third-party keyboards and mice instead of Apple's, which saves money.
Can I connect an iMac to an external monitor?
Yes. iMacs have USB-C ports that support external displays, so you can add a second monitor if you need more screen space. This is useful for multitasking or detailed design work.