With some careful modding, you can use an iMac as a display — and save more than $1,300 to get a high-end monitor similar to Apple’s pricey Studio Display.
Apple’s Studio Display is one of only a small handful of 27-inch Retina 5K displays on the market, boasting a resolution of 5,120 × 2880. Unfortunately, it costs quite a handful — $1,599. If you have an old iMac 5K sitting around, you already have a computer with the exact same display panel inside. So if you are willing to spend about $190 in parts and can convert it to a Studio Display, you can save a big chunk of change.
Here’s how you can mod it yourself — but be warned, it’s not for the faint of heart.
December 30, 1999: Microsoft hits the height of its 1990s dominance and begins its early-2000s decline, clearing a gap at the top for Apple.
December 29, 1999: Apple starts shipping its unfathomably large 22-inch Cinema Display, the biggest LCD computer display available anywhere,
December 28, 2006: As the rest of the country enjoys a much-deserved holiday, Apple gets embroiled in a stock option “backdating” scandal.

December 27, 2010: Almost four months after the second-gen Apple TV’s debut, Cupertino says it has sold 1 million of the streaming video devices.
December 26, 1982: Time magazine names the personal computer its “Man of the Year.”
December 25, 1977: Steve Wozniak spends the holidays building a prototype of the Disk II, the Apple II computer’s revolutionary floppy disk drive.