AppleMac = Brilliant

Tombie · 7th September 2009, 05:54 PM

What change in Gb sizes?

Apple has always referred to the *correct* definition of a Gb.. Apologies, I see it now....

Prefixes for bytes are now used in strictly decimal meaning when describing disk space, such that an indicated file size of 1 MB corresponds to 1,000,000 bytes, as commonly used by hard disk manufacturers.

Its the mutated system used elsewhere that reads wrong.. And why your HDD in your PC always reports smaller than what you purchased!

Consumer confusion

Since the early 2000s most consumer hard drive capacities are grouped in certain size classes measured in gigabytes. The exact capacity of a given drive is usually some number above or below the class designation. Although most manufacturers of hard disk drives and flash-memory disk devices define 1 gigabyte as 1000000000bytes, the computer operating systems used by most users (with the notable exception of Mac OS X 10.6) usually calculate size in gibibytes by dividing the total capacity in bytes (whether it is disk capacity, file size, or system RAM) by 1073741824, but report the result with the symbol GB. This practice can be a cause of confusion, as a hard disk with a manufacturer-rated capacity of 400 gigabytes may be reported by the operating system as only 372 GB.
The JEDEC memory standards uses the IEEE 100 nomenclatures which defines a gigabyte as 1073741824bytes (or 230 bytes).[1]

**samuelclarke** · 15th September 2009, 03:22 PM

Originally Posted by Mick-Kelly

...though how much ram do you actually need.

For most usage 2GB of RAM is adequate, and 4GB is the sweet spot (based on performance vs. cost) with current Macs.

I've got 4GB in my MacBook Pro - I'm a media pro (photography/design + advertising/marketing), and find for about 50-70% of the work I do it's fine...though I'll be upgrading to 8GB when prices come down a bit more. (4GB of laptop RAM (DDR3) is around $200 atm - 8GB is $900-$1400!

**disco2hse** · 16th September 2009, 05:11 AM

Originally Posted by samuelclarke

For most usage 2GB of RAM is adequate, and 4GB is the sweet spot (based on performance vs. cost) with current Macs.

I've got 4GB in my MacBook Pro - I'm a media pro (photography/design + advertising/marketing), and find for about 50-70% of the work I do it's fine...though I'll be upgrading to 8GB when prices come down a bit more. (4GB of laptop RAM (DDR3) is around $200 atm - 8GB is $900-$1400!

Do you think that much RAM is going to make a lot of difference performance-wise? I mean, the CPU clock speed outweighs RAMs I/O rates and there is a point at which the amount of data required to be transferred between RAM and CPU negates the addition of more RAM. However if you are editing large image/video files then having them in RAM will be an advantage (at least 3x the size of opened images in Photoshop is normally what I consider).

Alan

**disco2hse** · 16th September 2009, 05:23 AM

Hmm. Never let a silver-lining mask the fact there is yet a cloud that surrounds it

Snow Leopard does not support older versions of Appletalk and as a result I cannot use it to connect to Novell shares at work. aaargh, that is so annoying. Now I have to use SMB. aaargh that is sooo Microsoft

One of the main differences is that passwords are no longer sent in clear text, which is a very good thing. I can change the preferences to allow transmission of clear text passwords and authorisation is completed but authentication by Novell is not completed. dammit.

Alan

**samuelclarke** · 16th September 2009, 07:21 AM

Originally Posted by disco2hse

Do you think that much RAM is going to make a lot of difference performance-wise? I mean, the CPU clock speed outweighs RAMs I/O rates and there is a point at which the amount of data required to be transferred between RAM and CPU negates the addition of more RAM. However if you are editing large image/video files then having them in RAM will be an advantage (at least 3x the size of opened images in Photoshop is normally what I consider).

Alan

You're right it does depend on the CPU speed of you Mac to a degree. However, any mac from the last say 3 years no matter what its CPU speed is going to benefit from more RAM - in the range of the current sweet spot. IMO, 2GB is the minimum for either 10.5 or 10.6 versions of Mac OS X - I have only two programs open at the moment - Safari and Mail - and the OS is using around 1.5GB. RAM is drastically faster than the hard drive, so if a program can run in just RAM then you will see performance gains.

**Lightweight** · 30th September 2009, 08:14 PM

Has anyone used Snow Leopard Server yet?? Still contemplating on giving it a go. I love the features of ESX, but i would love to have a big fat x-serve running, without any VM's having to run 5 separate Win Server hosts, just to run AD, Exchange, File and Print, ISA... blah, blah, blah! I really like the collaboration features, but it is a big move...

**350RRC** · 2nd October 2009, 08:43 PM

Getting back OT.........

Since installing snow leopard, a full shutdown and reboot is no more than 35 secs.

PC users?

The only times I have to do this is when I have a lot of apps open (Word, XL, Photoshop, iPhoto, etc) and my basic Macbook does a sooky la la when writing a report.

No loss of where I'm up to on reboot.

cheers, DL

**dmdigital** · 5th October 2009, 06:21 PM

Well I just ordered Snow Leopard for the iMac and MBP. Unfortunately I missed the 90 days from purchase offer cut-off of the $14.95 upgrade for the MBP as I didn't know about this whilst I was travelling. Anyway ordered the family pack for $69 so it hasn't cost me that much more.

My wife's also now set on a 15" MBP to replace her Toshiba as it's in need of at least a rebuild and a new battery pack.

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