HP AB300 - Server Console Solution Manual de usuario descargar pdf (Pagina 14)

CSIE54600 Pervasive Computing Lecture02: Overview

Note 14

Generalized Moore’s Law

z Most important technology

parameters double every

–

3years:

years:

z computation cycles

z memory, magnetic disks

z bandwidth

z Consequence:

z scaling down

Pbl

Pervasive Computing Overview 26

ems

z Cost

z energy

2nd Enabler: Communication

z Bandwidth of single fibers ~10 Gb/s

z ~20 Tb/s with wavelength multiplex (often at no cost for laying

new cable!)

new

cable!)

z Power line

z coffee maker “automatically” connected to the Internet

z Wireless

z mobile phone: GSM, GPRS, 3G, 4G

z wireless LAN (10, 54 Mb/s, 1Gb/s, 10Gb/s, getting higher)

Pervasive Computing Overview 27

z Bluetooth

z Room networks, body area networks

z Internet-on-a-chip

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 44 45

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HP AB300 - Server Console Solution Manual de usuario Pagina 14