wasimyaqoob said:If you live close to a Mac Store, just go and purchase it from there
Just a quick question: what do your GiB and MiB mean? I can kind of understand the GIgaByte thing, but there's no 'i' in megabyte. And surely it's not short for MIllion Bytes because a megabyte has more than a million bytes...!?mdavey said:In general, I'd recommend Crucial and Kingston Memory. PQI is a budget manufacturer with good quality control. Some of their sticks are compatible with Apple Macs. I bought my 1GiB PQI RAM new from Ebay: laptop-memory-store and I'd recommend them (although Ebay does have higher risks).
As you are only looking for 512MiB, I'd suggest looking second-hand, there should be lots of people offering genuine Apple 512MiB sticks at very reasonable prices.
PCMacUser said:Just a quick question: what do your GiB and MiB mean? I can kind of understand the GIgaByte thing, but there's no 'i' in megabyte. And surely it's not short for MIllion Bytes because a megabyte has more than a million bytes...!?
Just curious!
wasimyaqoob said:If you live close to a Mac Store, just go and purchase it from there
PCMacUser said:Just a quick question: what do your GiB and MiB mean? I can kind of understand the GIgaByte thing, but there's no 'i' in megabyte. And surely it's not short for MIllion Bytes because a megabyte has more than a million bytes...!?
Thanks, I thought there must be a reasonable explanation. I'm not sure how quickly the industry will take to it though! I've been in IT for over 10 years and it's the first time I've heard of it. Cheers for thatmdavey said:MB means a million bytes, GB means a Billion bytes. They are derived from SI units used in science. These are the measurements for hard disk drives.
MiB is short for Mebibyte, derived from Mebi meaning 2^20 (1024x1024).
GiB is short for Gibibyte, derived from Gibi meaning 2^30 (1024x1024x1024).
MiB and GiB (along with sisters such as TiB and KiB) are the correct unit multiples for describing RAM memory. Their use is strongly endorsed by many professional organizations including IEEE, IEE, IEC, BCS, NIST, CIPM.
http://physics.nist.gov/cuu/Units/binary.html
http://en.wikipedia.org/wiki/Binary_prefix