Evolution of computer systems.

HCI

Technology

STS

IT

Levels

Community
(sociology)

Personal
(psychology)

Information
(computer science)

Mechanical
(engineering)

Norms

culture

laws

zeitgeist

sanctions

roles

STS

Semantics

attitudes

beliefs

feelings

ideas

data

Programs

bandwidth

memory

HCI

IT

Hardware

motherboard

telephone

FAX

Technology

Levels as World Views

  1. Mechanical
  1. Informational
  1. Psychological
  1. Social