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I inherited an old iMac. I'd guess it's 2008 or 2009. I have no use for it as a computer, but I'd love to use it as an external display for my MacBook Air. It doesn't have a Thunderbolt port, but it does have a DisplayPort and two FireWire ports. Can I output video from my MacBooks Thunderbolt port into one of these ports?
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I inherited an old iMac. I'd guess it's 2008 or 2009. I have no use for it as a computer, but I'd love to use it as an external display for my MacBook Air. It doesn't have a Thunderbolt port, but it does have a DisplayPort and two FireWire ports. Can I output video from my MacBooks Thunderbolt port into one of these ports?

Possible to push video into old iMac via DisplayPort or FireWire?

All of Apple's hardware is produced solely by Apple Inc., who determines internal systems, designs, and prices. Apple buys certain components wholesale from third-party manufacturers. The current Mac product family uses Intel x86-64 processors. All Mac models ship with at least 1 GB RAM as standard. Current Mac computers use ATI Radeon or nVidia GeForce graphics cards and include a dual-function DVD and CD burner, called the SuperDrive. Current Apple hardware includes the iPad, iPhone, iMac, Mac Pro, Macbook, iPod and Apple TV. Discontinued hardware includes the Apple I, Apple II, and the Apple III, the Lisa, the Newton, the Quadra, Performa, Centris, Macintosh II and LC series, the Power Macintosh, iBooks and the MacBook.

Apple Hardware

A monitor or a display is an electronic visual display for computers, usually comprised of the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used a cathode ray tube (CRT) about as deep as the screen size. They are connected to the computer via VGA, DVI, DisplayPort, Thunderbolt, LVDS or other proprietary connectors and signals.

Displays / Monitors

Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.