- Preface
- I. A new era
- • Globalization, the first sign of change
- • English - the new planetary language
- • A change in the scale of education
- II. Education and its context
- • Education and business
- • Education and the state
- III. The digital habit
- • The new digital culture
- • Digital projects
- • Time for assimilation
- IV. The extended school
- • Education at a critical moment
- • A definition of the extended school
- • Yesterday: concentrated knowledge
- • Today: knowledge disseminated
- • Tomorrow: knowledge connected
- V. New tools and old
- • Chalk and blackboard
- • The spinning globe
- • Microscopic life
- • Desk and work
- • The computer garden
- • Slides and liquid Crystal
- • Projectors and projections
- • Dry and digital copies
- VI. Digital transition
- • Continuing education
- • Cultural exchange
- • The mental switch
- • Critical thought
- • Internal communication
- • Educational frontier posts
- • Technological updating
- • Creativity and deregulation
- VII. Means and ends
- • Values for today and for always
- • Technocentrality and consumerism
- • Software in the public domain
- VIII. The digital library
- • Atoms versus bits
- • The dual book
- • Digital quality
- • Reading and writing
- • Text and hypertext
- • Consult and navigate
- IX. The home computer
- • A new piece of furniture or a new instrument?
- • Playthings and electronic toys
- • Robots for assembly
- • The silent printer
- • The community network
- X. New instruments of thought
- • Word processors, a new way of writing
- • A friendly mouse
- • More portable learning
- • Designing with computers
- • The golden link in communications: the modem
- • Electronic mail always arrives at its destination
- • Fax, a threatened species
- • WWW: three magic letters
- • Reliable and accessible data bases
- • Tables, abacus and spreadsheet
- • The Scanner, a bridge between two worlds
- • New interfaces and old keyboards
- • Presentation aids
- • So-called multimedia
- • Digital cameras without film
- • Digital videos in schools
- • Music for all
- XI. Presence and remote presence
- • Features of distance education
- • The three generations
- • Synchronous and asynchronous moments
- • Spaces for meeting
- • Classrooms open to the world
- • The advantages
- • New educational niches
- • A new type of teacher and student
- XII. Talents and handicaps
- • The right to communication
- • The obstacle of the keyboard
- • The obstacle of the screen
- • The expression of individual talent
- Conclusions
X. NEW INSTRUMENTS OF THOUGHT
The golden link in communications: the modem
This essential element (modem: modulator/demodulator) enables us to link digital and analog worlds over telephone lines. There are many models of modem on the market and many transmission speeds. The unit of measure of speed of communication is the baud, named after Emile Baudot, although for practical purposes the term bits per second or bps is generally used. This book traveled over the net in countless versions between the two authors using two modems running at 28000 bps. In future telephone modems may perhaps be replaced by faster cable-modem equipment which will enable us to view digital video generated that very moment thousands of kilometers away from our domestic computer, with very high definition.
There are also radio modems much used by ham radio operators. These can be of great use in connecting marginal schools or schools far away from centers of population to networks using electronic mail. The Cognitive Studies Laboratory headed by Lea da Cruz Fagundes at the Rio Grande do Sul Federal University in Porto Alegre, Brazil has enabled some schools to connect to Internet by radio at no cost.
