ECE 424 Embedded Systems Design Lecture 2: Attributes of Embedded Systems Now Ning Weng.

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ECE 424 Embedded Systems Design Lecture 2: Attributes of Embedded Systems Now Ning Weng

ES Future Landscape We know what now, let us look forward Technology trends Issues, applications and initiatives Challenges and uncertainties ─ Nontechnical but likely substantial impact on ES Prepare not Simply predict Ning WengECE 4242

Technology Trends Computation Connectivity Storage Sensing Ning WengECE 4243

Computation: Morre’s Law Ning WengECE 4244

Connectivity: Bandwidth Ning WengECE 4245 Global BW Wireless BW by Applications

Unit for BW Gigabyte : GB, power of 9 Terabyte: TB, power of 12 Petabyte: PB, power of 15 Exabyte: EB: power of 18 Ning WengECE 4246

Connectivity: Devices & Cost Ning WengECE 4247 Interne of Things: 1 Trillion year 2013, most of them are embedded Internet access cost: fairly stable though BW rate increasing

Storage Nonvolatile memory ─ Magnetic hard disk drive Cost per unit storage halves per 15 months Motors: slower in orders of magnitude than electronic ─ Flash memory CMOS tecnology Up to 10 GV, good for embedded devices Ning WengECE 4248

Issues Energy Security Health Ning WengECE 4249

Energy Ning WengECE 42410

Security Reasons: Information value and inexpensive to duplicate, store and transfer Attacks: Malicious and misuse Ning WengECE Courtesy of Trusted Computing Group

Challenges and Uncertainties Open systems ─ Close system slow the innovation Internet Access Net Neutrality Privacy Successful commercialization Ning WengECE 42412

Ning WengECE For Next Class Get textbook Read Chapter 13 for Qt App. framework

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