Using an old imac as a "dumb" terminal

How do I turn on an old computer so it is a "dumb" terminal? It is connected to the new one with firewire, but I have forgotten what keys to hold down on the startup of the old one.

You want it in Target Disk Mode? Start it up with the T key held down. That should mount it as an external drive on the new Mac.
Depends what OS is on it, though; it's possible it won't support FW TDM. Easy to find out though - suck it and see

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How do I use my old iMac as a third display on my new MacBook pro?

I have both an iMac 2006 and a new 2011 MacBook Pro. I would like to use the old iMac as a second, prhaps third, monitor. How do I tturn my perfectly good iMac into a regular monitor?
Also, within my setup, I have an extra 19" vga display and a new Yiynova 19" interactive pen display. I would like to use my macbook pro as the main coputer and the rest as displays.
ppleas help.

Welcome to Apple Support Communities
If your iMac has got Mini-DVI, you have a 17, 20 or 24-inch iMac that doesn't support Target Display. Late 2009 and Mid 2010 27-inch iMacs, and iMacs with Thunderbolt can be used as external displays. Read > http://support.apple.com/kb/PH11302?viewlocale=en_US&locale=en_US
If your old iMac doesn't support Target Display mode, you can use ScreenRecycler to use your old iMac as an extended display for the new iMac. The only thing you need is that both Macs are connected to the same network

How can i use my old iMac as a extended desktop display for my new iMac?

I recently purchased a 21.5 in iMac and wanted to use my old iMac as a extended desktop. My new iMac has thunderbolt and USB 3.0 connections while my old iMac has firewire (400 and 800), USB 2.0 and mini-DVI. Is this posible?

Welcome to Apple Support Communities
If your iMac has got Mini-DVI, you have a 17, 20 or 24-inch iMac that doesn't support Target Display. Late 2009 and Mid 2010 27-inch iMacs, and iMacs with Thunderbolt can be used as external displays. Read > http://support.apple.com/kb/PH11302?viewlocale=en_US&locale=en_US
If your old iMac doesn't support Target Display mode, you can use ScreenRecycler to use your old iMac as an extended display for the new iMac. The only thing you need is that both Macs are connected to the same network

Is it possible to use the old iMac 2010 21inch as an external monitor for my 15inch Macbook retina?

Is it possible to use the old iMac 2010 21inch as an external monitor for my 15inch Macbook retina? E.g. Using a mini-display cable to connect from the imac mini display port to thunderbolt port on my macbook.

Apple shows only the 27" version supporting Target Display Mode.
<http://support.apple.com/kb/HT3924>

I want to use my old iMac G3 as second monitor to my MacBook Pro, how?

I want to use my old iMac G3 as second monitor to my MacBook Pro, how?
Thanks!

You can't really do it in any normal way; that is, using the MacBook's video output port.
You can use this program
http://www.screenrecycler.com/home.html
to make your iMac screen act as a second display, over a network connection. ScreenRecycler runs on your MacBook and creates a virtual second display. It uses the open-source VNC (screen sharing) protocol to serve that second display over the local network. You then run a VNC client program (usually free) on the iMac G3 and display the MacBooks virtual second screen in a window, which you can display full screen. Your iMac then appears to be the MacBook's second screen. You use System Preferences Displays pane to set it up, as you would a real second display.
How well this works depends on your iMac's speed, what Mac OS version it runs, and the speed of the network connection. If you connect the two directly with an Ethernet cable (Cat-5 or better), the network speed should be decently fast (at 100Base-T). If your iMac G3 has Tiger (10.4), you can use this program as the VNC client
http://www.jinx.de/JollysFastVNC.html
(there are free VNC clients for 10.3 and earlier)
However, this solution will never be as fast (in terms of screen refresh rate) as a real display using a real video connection. But you can try it at no cost, to see if it meets your needs.

Can I use my old iMac as a second screen for my new one?

I have an old iMac (about 4-5 years) that I don't use anymore and a new iMac that I just bought a few months ago.
Can I us my old iMac as a second display for my new one? Its a slow computer now, but the screen is nice and big so it would be nice to be able to keep using it like that.
If yes, what cord(s) would I need to make this happen?
If no, is there any disadvantage to using a non-mac screen for a second display? (I'm a graphic designer, so little things like having the color exact on each screen are very important)
Thanks for the help!

Is there any way to do it without lag? Right now it works, but its really annoying to have things so slow on the other screen.
Is there any way to hook them up so they work like an actual dual monitor setup (wired connection with no lag)?

New use for old imac

I'm considering an upgrade for my iMac G5 (1.6 GHz PPC) to a newer Core 2 Duo, and am wondering if there's some use for the old iMac besides door stop? Specifically, is there a way that I can use the old machine for backup? It has a newer hard drive. Thoughts appreciated.

You can use it as a monitor for your new mac using an app called ScreenRecycler, or take it apart, throw in a big HD and like the other poster said, use it as a type of home server, or you can sell it, or you can donate it to a company that will refurbish it and send it off to less-fortunate families, or you can make a big shrapnel bomb, or you can.... well you get the idea. I would suggest using it for the monitor though

Using a old iMac as a Secondary Display

Can I connect a Late 2006 24-inch, iMac to a 27' Late 2012 iMac and use the 2006 iMac as a secondary Display

Remove the hard drive if possible(instructions are available here and here as PDFs for some iMac G5 models), and put it in an enclosure. You cannot use a nonfunctional Mac as a display for another computer.
(38124)

Uses for old iMac (Rev. B)

I still have my very first Mac - a Rev. B Bondi Blue iMac. It was, until recently, running Mac OS X 10.1.5. Although, it had a disk problem which I managed to recover from by doing a clean install of Mac OS 9.1.1. My dad was using it until he purchased an eMac for himself.
At home I'm using my iBook on the Airport Extreme network - shared with my housemate and her G4 Powerbook. I know that I can connect the iMac directly to my AirPort base station and it can use use the Net and be part of the home network.
I think the iMac still has loads of life in it. I was wondering what other Mac users are maybe doing with their old machines. I'd like to hear of any recommendations.

I've installed OS 10.2 on an iMac I found in a dump. I am planning to take it to work so I can use it for personal e-mail.
Some enterprising members of the iMac community has found a wooden box is the best place for an iMac to retire. See http://www.glenbo.com/imac_box/details.php .
Generally, having more than one computer per person is kind of a pointless thing. It simply chews up electricity and does not accomplish very much. You have to store your files somewhere and ideally that location is centralized, not scattered over 2 or more computers. Invariably the extra computer becomes kind of useless because it doesn't have any of your stuff on it. It no longer feels like 'yours'.
I have many many G3's sitting here and I'm using my Mac Mini (and a G4 PCI as server) and couldn't think of a use for any of my other Macs. I spend about $30 a month on electrical power for all those computers. I personally can't think of a reason to justify it besides making NStar rich.
If you're wondering why I am hanging onto those G3's that I found -- because I can. Since I can't sell them for a decent price, they might as well sit here and take up space.
I wish I could make more use of those old computers, but it is very hard. Even if I linked all of them up to make a Beowulf cluster, it still wouldn't be as powerful as my Mac Mini alone.

Using my old iMac hard drive as an external to my macbook pro

hi
I was wondering whether it's ok to use my imac's drive as an external hd for my new macbook.
You see, my imac had some trouble with the power supply and i decided not to fix it. Instead, I took out the drive and put it in a case so to use as an external for my new machine. The thing is, that drive is the operating drive of my imac, so it has everything on. (Appz, Library, Utilities, Operating system- i suppose).
I only need documents such as pictures/videos/mp3s etc on that drive. All the rest I have with my new drive.
What's the best thing to do?
Keep using it as it is?
Transfer the documents i want to save and format the drive?
Something else?
Thanks for your time.

Transfer the documents i want to save and format the drive?
Yes

Can I use my old iMac OS X 10.4.11 merely as a display for my iPad?

The iMac OS X 10.4.11 has a nice screen. I want to use the screen as a display. In effect, I want to by pass the internal processor of the iMac and use the iPad as the processor. Is this possible?

Sorry that probably will not work. You can look into ScreenRecycler and see if they have a version for iOS but I doubt they will. Click:
http://www.screenrecycler.com/ScreenRecycler.html

Can I use my old iMac(late2009) as a monitor for my new iMac i.e. dual screens?

I have a iMac late 2009, just purchased this week,but not received a brand new iMac, i want to use both iMacs,the older one as a second screen.
The older one has mini display port, but no thunderbolt.The New one has thunderbolt,USB3 can i connect them together t ouse older iMac as a monitor?

so if thunderbolt is backward compatible,can I use a thunderbolt to Thunderbolt cable , would the data rate be increased if i did this?, Ive seen those available, but mini port to mini port seems to be more difficult to find, I take it that the mini port connection end of the cable is compatible with Thunderbolt. loads of variations of mini port with usb, mini port to firewire etc me

Using an old imac, I want to move to Icloud

I would like to move to Icloud but when I went to upgrade the OS it said my Imac is not compatable even though it's an 2Ghz Intel Core Duo. Is there any other way. ????

You must be running Lion OS X 10.7 in order to use iCloud. And your model of computer, which uses the Intel "Core Duo", is Not compatible with Lion. You need at least a "Core 2 Duo" CPU to run Lion. So, if you need iCloud it's time to purchase a newer iMac.
Hope this helps

How do i Use my old 2009 imac as a monitor for my new 27 inch 2014 iMac?

Just got the 2014 27-inch iMac, and i have a 2009 iMac as well as a ViewSonic Monitor with a Thunderbolt adaptor.
Is it possible with the 2 Thunderbolt display ports to have 2 extra monitors?...So far on the ViewSonic works. I tried to use Migration Assistant to Transfer files, and the 2014 saw the other computer, but the 2009 just kept looking for a connection while it was connected by Thunderbolt.
At a local Mac store, i asked this question, and when they confirmed the the 2014 had 2 Thunderbolt ports, that i would be able to use the old iMac and an additional monitor.
Please Help,
Thank You

This article should help http://support.apple.com/kb/ht3924

Use old imac as extra screen for new imac

Hello there,
the HD of my old iMac crashed and is broke. Can I use my old iMac as an extra screen nexto my new imac?
greetings,
Steven

They are video output devices, not input devices.

Using an old imac as a "dumb" terminal

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