On Thursday, April 23, 2015 at 9:22:49 PM UTC-4, Bill Spencer wrote:
>
>
>
> On Wednesday, April 22, 2015 at 11:43:01 PM UTC-4, 
> joh...@pharmacy.arizona.edu wrote:
>>
>>
>> > On Apr 22, 2015, at 7:31 PM, Jim Scott <jesc...@gmail.com> wrote: 
>> > 
>> > Most standard Apple rotating disk hard drives are 5400 rpm units, which 
>> are reliable but noticeably slower than a 7200-rpm unit. A Fusion drive 
>> combines a 128 GB SSD (solid state drive) with a 5400-rpm spinning platter 
>> drive, using Apple’s proprietary drive software. The theory and intent is 
>> to load the most-used applications and operating system on the much faster 
>> SSD and to use the SATA hard drive for storage. My experience with a 1.28 
>> TB Fusion drive in a late-2012 27-inch iMac is that it compares favorably 
>> to the 2 TB 7200-rpm hard drive I installed in a mid-2010 iMac, as well as 
>> a “hybrid” (SSD + hard drive) 7200-rpm 2.5-inch unit I’ve used in a couple 
>> of late model 13” MacBook Pros. 
>>
>> I just clocked my systems. the Mini (Mid 2011, 2.3Ghz i5, 8gb RAM), with 
>> a Fusion drive boots power on to login in 32 seconds. 
>>
>> the MBA (13", Mid-2013, 1.3GHz i5, 4gb) power-on to login 14 seconds. 
>>
>> so shorter for both than I remembered (I rarely reboot either) but shows 
>> the advantage of an ssd over even the fusion drive. 
>>
>> Again, from personal experience setting up mini's as lab workstations, 
>> the base model hdd in these things are glacially slow in comparison. Even 
>> downloading stuff off the internet was faster (This faculty member was 
>> downloading ginormous 20-30 GB DNA restriction map datasets) because, it 
>> turned out, that disk IO was the primary bottleneck on the system. 
>>
>>
>> > 
>> > Where storage is concerned, be aware that any late-2012 or newer iMac 
>> has four USB 3.0 ports, as well as two Thunderbolt ports. This means really 
>> speedy read/write access to really huge external storage devices. I’ve 
>> played around with a 240 GB SSD inside a USB 3.0 Mac with a 3 TB external 
>> hard disk drive, and the combination can’t be beat as a speedy, inexpensive 
>> consumer-level setup 
>>
>> Yes, I keep forgetting how insanely fast USB3 is. I helped a faculty 
>> member set up Time Machine on her newish iMac plugged in the drive, and 
>> told her "Oh it may take up to a couple hours to finish the initial 
>> backup". We talked about some other things for about ten minutes and it was 
>> done. 
>>
>> Unless you're really set on an iMac, I still believe that your best value 
>> for the budget will lie in getting a good Mini system (they also have 4 
>> USB3 and 2 thunderbolt ports), along with a third party monitor. You'll get 
>> a larger monitor with a matte screen (no shiny glass to reflect glare!) and 
>> lower price.  Like the iMacs the memory isn't upgradeable so make sure you 
>> get what you need up front. 
>>
>> -- 
>> Bruce Johnson 
>>
>> "Wherever you go, there you are." B. Banzai, PhD 
>>
>>
>
> I am not *at all* dead-set on an iMac, it's just that's what I've been 
> using for many years. The Mini+monitor idea sounds just fine with me, 
> although since I already have a keyboard and mouse (I use the Logitech 
> Trackball, M570, because of pain issues in my hand/wrist), would I really 
> need to replace those? I will most likely get the best internal drive I can 
> manage, because I've been increasingly unhappy with the molasses-like 
> response of the standard-issue one. Also, since I haven't bought a monitor 
> in probably 20 years, what suggestions do you have for models at around 
> $150 or so? I assume a 24-inch (diagonal?) would be fine, I don't really 
> need Cinerama on my desk.
>

Also, what about a CD/DVD drive? It looks like the Mini does not have one 
included. 

>
> Thanks again! Bill
>

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