Progress in information technology
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Skills: none
IT concepts: technology progress versus technology, progress in storage, electronic and communication technology
Where does this topic fit?
• Internet concepts– Applications– Technology– Implications for
• Internet skills– Application development– Content creation
Information technologies
Electronic
Storage
Communication
Technology progress and technology shifts
Technology progress
1903
1905
Storage: IBM 305 RAMAC, 1956
5 million characters (6 bits each)50 two-foot-diameter disks$167,850 with no printerA nice house was $15,000 and a coke or candt bar 5 cents
Electronics: transistors
Three billion transistor integrated circuits (chips) today
First integrated circuit, 1959
First transistor, 1948
Communication: 1986, NSFNet backbone 56 kbps
Today 10 gbps is common
The first functioning laser, 1960
My first home terminal, 1973, 100 bits per second
Progress in information technology
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Skills: none
IT concepts: technology progress versus technology, progress in storage, electronic and communication technology
A few questions
We looked at storage, electronic and communication technology. What other technologies are undergoing dramatic improvement?
If the first cars got only 1 mile per gallon, and that doubled every two years, what would our mileage have been 20 years later? Thirty years later?
What is punched in this card?