history and health issues in using computers
DESCRIPTION
for first year HS IT class in Ateneo de Davao UniversityTRANSCRIPT
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History of computers
Br. Jeffrey
Pioquinto, SJ
Ateneo de Davao University
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history
Looking at our past so as we can better understand today and plan well for the future.
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Those who cannot remember the past are condemned to repeat it.
GEORGE SANTAYANA
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Technology is:anything that wasn’t around when you were born.
ALAN KAY
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operate the machine
Consider these planes (an ancient tool): their designers sought fitness for use, ease of use, good control, long-lasting materials, a good feel in the hand, efficiency of operation, precise adjustment. In use over time, these tools come to be loved by their owners.
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pre-computer
Most of the qualities we seek in a machine have been valued through the ages.
• useful
• usable
• desirable
• affordable for the right people
• appropriately complex
• appropriately styled
• appropriately adaptable, extensible, malleable
• overall, having “good fit” with people, context, activity, result
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startcomputer history?
where would you
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characteristic statement of the time
The abacus, also called a counting frame, is a calculating tool used primarily in parts of Asia for performing arithmetic processes
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mechanical1650
1940
Pascaline – first mechanical computing machines
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electronic1940
1960
Vacuum tubes invented = transition to electronics
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electronic1940
1960
ENIAC (first electronic computer) – 1946
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electronic1940
1960
1948 – transistor invented (replaced vaccuum tubes)
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mini1960
1975
Integrated circuits are born
equivalent of millions of transistors
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the mac taps into pent-up desire for ease and pleasure of use
Then, during the 1984 Superbowl, you see the first commercial for the Macintosh (directed by Ridley Scott of Blade Runner fame). A crowd of solemn men is gathered in a gloomy auditorium, listening to a ranting bureaucrat on a huge screen.
Think of a world full of command-line interfaces…
An athletic woman in colorful clothing runs into the auditorium, carrying a huge hammer…
…which she throws into the screen, smashing the image and voice of the status quo.
hello.
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network1990 present
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Ergonomic tips in using computers
Ergonomics is the science of designing the job, equipment, and workplace to fit the worker. Proper ergonomic design is necessary to prevent repetitive strain injuries, which can develop over time and can lead to long-term disability
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An ounce of Prevention is worth a pound of cure !