HP AB300 - Server Console Solution Manual de usuario descargar pdf (Pagina 4)

CSIE54600 Pervasive Computing Lecture02: Overview

Note 4

Invisible Technologies

z The most powerful technologies are invisible:

they

get out of the way to let human be effective

Electricity

z Electric motors hidden everywhere (20-30 per car)

z Electric sockets in every wall and portably available

through batteries

z Integrated, invisible infrastructure

Literary technology

Pervasive Computing Overview 6

Literary

technology

z Continuously surrounding us at many scales: books,

newspapers, street signs, candy wrappers

z Used trivially and profoundly

z Literally visible, effectively invisible

Good Technology Is Invisible

z “Invisible” stays out of the way of task

z Like a good pencil stays out of the way of the writing

z Like a good car stays out of the way of the driving

z Bad technology draws attention to itself, not task

z Like a broken, or skipping, or dull pencil

z Like a car that needs a tune-up

Computers are mostly not invisible

Pervasive Computing Overview 7

Computers

are

mostly

not

invisible

z They dominate interaction with them

z Pervasive/Ubiquitous computing is about “invisible

computers”

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HP AB300 - Server Console Solution Manual de usuario Pagina 4