3. 3
H 25/9 inleiding, toledo
Z - internet en www
H 2/10 systemen, gebruikers, web, virussen
Z - tekstverwerking en rekenblad
Z - samenwerking
H+Z 9/10 presentaties en rapportering, maple
6. Moore’s law
‘the number of
transistors that can
be placed
inexpensively on
an integrated
circuit has doubled
approximately
every two
years’ (1965)6
processing speed, memory
capacity, sensors, network
capacity, ...
7. 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...
7
9. wiring the ENIAC with a new program
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
Great description here: www.computinghistorymuseum.org/teaching/lectures/pptlectures/7b-eniac.ppt
9
10. preparing punch cards
An important by-product:
confetti. All the chaff from all
those cards was just great to
throw around the dorm.
10
14. D. Engelbart,Augment
• Stanford Research Institute
• “Uitvinder” van muis,
windows, groupware, ...
• team naar Xerox PARC
• nu: bootstrap institute
• http://www.bootstrap.org/
14
18. All 39 pages of advertising that Apple bought in a 1984 issue of newsweek are available here: http://www.aci.com.pl/mwichary/computerhistory/ads/
macnewsweek
18