[OSX-Users] Re: New 2015 MacBook

[Jules Field]

The MacBook comes with a 29W USB-C charger. Your usual USB power 
supplies are only 5W, or at most 12W in the case of newer iPad models. 
It would take one a *very* long time to charge a MacBook at 5W.

Jules.

On 22/05/2015 11:58, Hugh Davis wrote:
> But presumably that means an enormous heavy transformer, which rather
> defeats the purpose!
>
> /h.
> Hugh Davis
> Professor of Learning Technologies
> Director of Institute for Learning, Innovation and Development (ILIaD)
> Tel:  +44 (0)23 8059 3669
> Building 32 Room 3045
> Highfield Campus, University of Southampton, SO17 1BJ, UK
> Co-ordinates at http://users.ecs.soton.ac.uk/hcd/
> My calendar is at http://users.ecs.soton.ac.uk/hcd/hcdcal.html
>
>
>
>
> On 22/05/2015 11:13, "Steve Harris" <steve at totl.net> wrote:
>
>> Yes, the new MacBooks are charged over USB-C.
>>
>> USB-C can carry 100W, so in theory lots of things could run off USB-C in
>> the future. It¹s enough power to run a 50² TV.
>>
>>> On 22 May 2015, at 10:54, Hugh Davis <hcd at soton.ac.uk> wrote:
>>>
>>> I saw a few reviews suggesting that the CPU power would be a downgrade
>>> on existing MacBook airs.
>>>
>>> I¹m not sure that CPU speed is ever an issue for the sort of activities
>>> I undertake ­ its usually been disk speed,  and even that seems to have
>>> been an insignificant problem since I got SSD or hybrid disks.
>>>
>>>
>>> ALSO
>>> Still slightly worried about the single USB C slot.  In effect I have
>>> to always remember to carry around some extra device in order to charge
>>> my iPhone from my PC. when its charging?
>>>
>>> And Finally.
>>> It would be nice if they produced a PC that could be charged from a USB
>>> supply as an iPad can!  I presume this is not the case here?
>>>
>>> Any thoughts.?
>>> /h.
>>>
>>>
>>> Hugh Davis
>>>
>>> Professor of Learning Technologies
>>>
>>> Director of Institute for Learning, Innovation and Development (ILIaD)
>>>
>>> Tel:  +44 (0)23 8059 3669
>>>
>>> Building 32 Room 3045
>>>
>>> Highfield Campus, University of Southampton, SO17 1BJ, UK
>>>
>>> Co-ordinates at http://users.ecs.soton.ac.uk/hcd/
>>>
>>> My calendar is at http://users.ecs.soton.ac.uk/hcd/hcdcal.html
>>>
>>> From: Jules Field <Jules at ecs.soton.ac.uk<mailto:Jules at ecs.soton.ac.uk>>
>>> Organization: University of Southampton
>>> Reply-To: List for users of Mac OS X
>>> <osx-users at ecs.soton.ac.uk<mailto:osx-users at ecs.soton.ac.uk>>
>>> Date: Friday, 22 May 2015 11:39
>>> To: List for users of Mac OS X
>>> <osx-users at ecs.soton.ac.uk<mailto:osx-users at ecs.soton.ac.uk>>
>>> Subject: [OSX-Users] Re: New 2015 MacBook
>>>
>>> All models have 8GB RAM.
>>>
>>> 256GB ssd and 1.1GHz cpu = £902
>>> 256GB ssd and 1.3GHz cpu = £1074
>>>
>>> 512GB ssd and 1.2GHz cpu = £1117
>>> 512GB ssd and 1.3GHz cpu = £1220
>>>
>>> Then you'll want an AV multiport adapter (either HDMI or VGA version) =
>>> £65
>>> That provides a USB-C socket (so you can charge while showing a
>>> presentation), normal USB, and either HDMI or VGA.
>>>
>>> So top-of-the-range = £1285 for the package. But I'm not convinced the
>>> 1.2GHz->1.3GHz upgrade is worth having, so you could knock roughly £100
>>> off that.
>>>
>>> All prices include VAT.
>>>
>>> One thing I have noticed is quite how fast the SSD is. Installing my
>>> 30GB system image from a USB disk takes 3 minutes, compared to 6 minutes
>>> for a MacBook Pro Retina and over 20 minutes for a "spinning rust"
>>> disk-based Mac.
>>>
>>> Hope that helps,
>>> Jules.
>>>
>>>
>>> On 22/05/2015 10:26, Tim Chown wrote:
>>> So what¹s the damage for one of those?
>>>
>>> Tim
>>>
>>> On 21 May 2015, at 15:21, Jules Field
>>> <Jules at ecs.soton.ac.uk<mailto:Jules at ecs.soton.ac.uk>> wrote:
>>>
>>> If anyone would like to see one in the flesh, I've got one in my office
>>> you are welcome to come and look at.
>>> Zepler 4211, by the lift.
>>>
>>> - Weight under 1kg (lighter than MacBook Air)
>>> - Thinner than the MacBook Air
>>> - Brand new keyboard
>>> - Force Touch trackpad
>>> - No fans, no moving parts at all (even the keys only *just* move)
>>> - 10 hours battery life
>>> - 1.1/1.2/1.3GHz Core M cpu
>>> - 8GB RAM
>>> - 512GB SSD storage
>>> - Retina display (12", 2304x1440 pixels)
>>>
>>> Jules
>>>
>>> --
>>> Jules Field MEng MBCS CITP CEng
>>> email+iMessage: Jules at ecs.soton.ac.uk<mailto:Jules at ecs.soton.ac.uk>
>>> Twitter: @JulesFM
>>>
>>> Senior Tutor, Postmaster
>>> Electronics and Computer Science
>>> University of Southampton SO17 1BJ, UK
>>>
>>>
>>>
>>>
>>>
>>> Jules
>>>
>>> --
>>> Jules Field MEng MBCS CITP CEng
>>> email+iMessage: Jules at ecs.soton.ac.uk<mailto:Jules at ecs.soton.ac.uk>
>>> Twitter: @JulesFM
>>>
>>> Senior Tutor, Postmaster
>>> Electronics and Computer Science
>>> University of Southampton SO17 1BJ, UK
>>>
>>> 'There is silent poetry in the stillness of morning;
>>> in the calm, the cries & sighs of life sound like gentle music.'
>>> - @Astro_Wheels
>>>
>>>
>>>
>>
>

Jules

-- 
Jules Field MEng MBCS CITP CEng
email+iMessage: Jules at ecs.soton.ac.uk
Twitter: @JulesFM

Senior Tutor, Postmaster
Electronics and Computer Science
University of Southampton SO17 1BJ, UK