So einfach geht modernes Roaming fuer Notes und Nomad.pdf
20130206 bisdom brugge_blankenberge
1. Open leren
De rol van sociale media
en learning analytics
in het onderwijs
Tweedaagse directies Bisdom Brugge, Blankenberge, B, 6 February 2014
!
Erik Duval
http://erikduval.wordpress.com
@ErikDuval
1
7. Moore’s law
‘the number of transistors that can be placed inexpensively on an
integrated circuit has doubled approximately every two years’ (1965)
processing speed, memory capacity, sensors, network capacity, ...
8. what does exponential mean?
if you fold a sheet of paper 50 times,
then how thick is the result?
about the distance to the sun...
8
9. ENIAC!
1946!
Mauchly and Eckert!
!
stats:!
3,000 cubic feet!
30 tons!
18,000 vacuum tubes!
70,000 resistors!
170 kilowatt power req.!
~1 kilobit memory!
!
approximate processing power of
today’s singing birthday card!
!
but not a stored-program device
www.computinghistorymuseum.org/teaching/lectures/pptlectures/7b-eniac.ppt