GSM/UMTS

           Only in America are CDMA devices very popular which says a lot as CDMA is constantly ageing. GSM devices have ruled over seas and in domestic areas the best thing about GSM is you can put in a SIM card and continue using your service. However doing that can cause certain features such as HSPA or LTE to not work and as a result the device can be useful or useless.

          GSM based devices use HSPA,UMTS,EDGE,GPRS or LTE the huge advantage that GSM has over CDMA is the universal ability to change service providers however some carriers may choose to "lock" their devices to keep it on their network however you can "unlock" by entering an unlock code. Airwaves provide the way for wireless devices to communicate and different frequencies like 850MHZ can talk to 1900MHZ. With that being said you will want to check your device's frequencies and the carrier you want to switch to frequencies as having all frequencies but one can result in having only EDGE. That is the thing that people don't seem to give Apple credit for as the iPad and iPhone have LTE and GSM and CDMA radios and don't disappoint on performance unless it is a bad radio or network if you have Sprint. I personally recommend a world phone that can be unlocked for another network like O2 so if you come to the U.K for example your AT&T phone will use O2 and vise versa. Another thing people don't seem to credit Apple for making a dual CDMA and GSM radio so if you have Verizon or Sprint or any other CDMA carrier you can use a GSM carrier for back up or just left Sprint.

Ram Disk

             

              This is a tutorial on how to get super fast storage with a RAM disk image. Further details can be found in Maximum PC the March 2011 issue.

              

              

              The speeds using a RAM disk image are 10 times faster than a top shelf Solid State Drive. If you are the type of person who needs temporary storage or has plenty of RAM to spare and want to try this try it. However you're speeds may vary as Ram is different from any other type of memory like if you are on DDR RAM than don't expect much but on DDR2 @ 800MHZ ram speeds were around 1000/mbs and got as high as 1700/mbs. If you are on DDR3 @ 1600MHZ you can expect speeds to be around 6500/mbs and with a RAM disk the speeds have been consistently this high sometimes the write speeds were faster than the read times.

             

             

              You should try a RAM disk if you are a video editor and need temporary space for a project or even if you want to store you're temporary system files or even change where you're browser caches it's files.There are plenty of RAM disk programs but I personally recommend SoftPerfect as it allows you to create multiple images. But be advised as RAM is formatted every time you turn off you're PC whether it is hibernated or even at deep sleep and you're PC turns back on RAM will be formatted so BACK UP and don't depend on this as you're hard drive. 

RAM its more than just a single thing

You're speeds may vary