(Shared with system memory) Nvidia GeForce 320M using 256 MB of DDR3 SDRAM with Mini DisplayPort output Intel HD Graphics 3000 processor using 256 MB (11" base model) or 384 MB (all other models) of DDR3 SDRAM Intel HD Graphics 4000 processor with up to 1 GB DDR3 SDRAM shared from main memory Intel HD Graphics 5000 processor with up to 1.5 GB LPDDR3 SDRAM shared from main memory Intel HD Graphics 6000 processor with up to 1.5 GB LPDDR3 SDRAM shared from main memory
AppleCare Technician Training provides a comprehensive curriculum covering Apple products and technologies. The modules cover such topics as general computer terminology, Apple-specific architectures, and troubleshooting and preventive maintenance in a logical, straightforward format that makes it easy to absorb new concepts and information. In addition, the training is self-paced, so you have complete control over your learning schedule.

For my second call, I asked about Siri. I opted for waiting music of my choice at 3:03 p.m. and was on the phone with John in New Mexico at 3:05. John, a friendly and to-the-point representative, pulled up the relevant article and walked me through the steps by 3:07 p.m.. He even emailed me a link to the related support page so I could have those steps handy in the future.
Before rolling out the paid chat support, Apple had to develop a new web payment system that would allow it to accept payments through chat and keep user info secure when transferred between support agents, according to our sources. Using the new web payment system, we’re told Apple plans to offer the ability to set up hardware repairs and replacements that require a hold on a credit card or pay per incident fee via chat support. Rather than having to call in, users will be sent a link that’s live for 24 hours in order to complete the payment.
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