Apple

Cracking open the Apple iPhone

Apple iPhone SIM card slot - inside

The iPhone has two PCBs sandwiched together. As I wanted to reassemble the phone in working order, I decided against separating them. According to various Internet reports, the iPhone uses an ARM1176JZF-based processor manufactured by Samsung (S3C6400) that operates at 667MHz. According to the ARM Web site, the ARM1176JZ(F)-S chip uses ARM TrustZone technology to improve security, ARM Jazelle technology for embedded Java execution, and ARM Intelligent Energy Manager (IEM) technology to reduce processor power consumption.

About

Bill Detwiler is Managing Editor of TechRepublic and Tech Pro Research and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop supp...