Thanks Robin,
I’m very grateful to you telling me how it should work.
Now I’m off to the Apple shop.
Kind regards
Marcus

> On 16 Oct 2020, at 8:42 pm, Robin Belford <[email protected]> wrote:
> 
> Hi marcus,
> 
> Yes you can put your iMac 10,1 model into Target Display mode and use it as a 
> second monitor.
> You will need a bit of a cable mix to get from Thunderbolt 3 to mini display 
> port but it can be done.
> 
> To get into Target Display mode you need to do this.
> 
> Use Target Display Mode
> Follow these steps to start using your iMac as a display:
> 
> Make sure that your iMac is turned on, and the other Mac is logged in to a 
> macOS user account.
> Connect the Mini DisplayPort or Thunderbolt cable between the two computers.
> Press Command-F2 on the keyboard of the iMac that you want to use as a 
> display.
> After you press Command-F2, your iMac displays the desktop from the connected 
> Mac.
> 
> Have a read of this
> https://applerepairstation.co.uk/Technical%20Desk/use-your-imac-as-a-display-with-target-display-mode/
>  
> <https://applerepairstation.co.uk/Technical%20Desk/use-your-imac-as-a-display-with-target-display-mode/>
> 
> regards,
> 
> robin
> 
> 
> 
> 
>> On 16 Oct 2020, at 3:53 pm, Marcus Harris <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Hello WAMUGERS,
>> 
>> I have an Apple 27 inch iMac  iMac10,1  Intel Core 2 Duo Speed:3.06 GHz
>> 1 Processor: 2Cores: L2 Cache:3 MB Memory: 8 GB Graphics-ATI Radeon HD 4670, 
>> 256 MB Storage 2TB HD 
>> System Software  macOS Sierra 10.13.6
>> 
>> It’s getting pretty slow now as it’s 11 years old and I think it may soon 
>> fail. macOS Sierra is the limit for it’s system capability.
>> 
>> But the screen is fine for my daily work.
>> 
>> I am considering buying an advertised MacBook Pro (2020) with a quad-core 
>> Intel processor and Magic Keyboard. 
>> 8th-generation quad-core Intel core i5 processor with Turbo Boost up to 
>> 3.9GHz
>> 8 GB Ram 256GB SSD
>> 
>> Will I be able to plug it into my iMac 27 thereby using her as my desktop 
>> screen? 
>> 
>> If not then what is the next best option suggestion to allow me to plug into 
>> her screen?
>> Perhaps this is a crazy idea!
>> 
>> BY THE WAY, I use my Mac for writing essays, for spreadsheets, organising my 
>> photos , reference browsing and emailing. Nothing high end anymore as I’m 
>> now 77.
>> 
>> I recently bought an iBookPro 12 with pencil for streaming, taking photos, 
>> reading and sketching. It’s a great Apple product.
>> 
>> Regards
>> 
>> Marcus Harris
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Marcus
Marcus Harris
P.O. Box 7135
Shenton Park
Western Australia 6008
Australia
Cryptodome Pty Ltd
[email protected]
Mob: +61 (0) 417965618




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