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How Personal Computing Technology Has Changed
by Donna Doyon
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hh
Gadgets…
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hh
We all have them.
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hh
We all love them.
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But did you know…
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Early computers were text only?
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There were no pictures...
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There were no pictures...No sounds...
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There were no pictures...No sounds...
No video.
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Computers were used in business and research
settings to enter data and perform math calculations.
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Few people saw a reason to have a
computer at home.
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By the late 1970s that changed.
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Personal productivity software and games
were developed for home use.
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In January 1977 the first personal computer was
sold:
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In January 1977 the first personal computer was
sold:
A Commodore PET
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In 1977
One man predicted:
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“There will be a computer on every desk and in every home.”
In 1977
One man predicted:
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“There will be a computer on every desk and in every home.”
In 1977
One man predicted:
~Bill Gates
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48,000
Number of Personal Computers
sold in 1977…
(U.S. population: 220,239,000)
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292,000,000
Number of Personal Computers
sold in 2008…
(U.S. population: 304,000,000)
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In 1977, computer technology was slower and less mobile…
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…than it is today.
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Times change.
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Random Access Memory
1977 – 32,000 bytes
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Random Access Memory
1977 – 32,000 bytes
2008 – 8,000,000,000 bytes
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CPU Speed
1977 – 1MHz (1,000,000 Hz)
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CPU Speed
1977 – 1MHz (1,000,000 Hz)
2008 – 3.2 GHz (3,200,000,000 Hz)
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Portable Storage
1977
360 KB
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Portable Storage
1977
360 KB
2008
4 GB
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Have you ever wondered…
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Have you ever wondered…
how data moves over the Internet
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The transmission process is pretty technical… and tends to promote glazed looks from non-
technical minded people.
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But the basic process can be conveyed by using a simple
analogy:
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But the basic process can be conveyed by using a simple
analogy:
Roads
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Fifty years ago, the Internet resembled a rutted country road.
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Information got where you wanted
it to go (most of the time), but it was a slow, bumpy and
unreliable journey.
Fifty years ago, the Internet resembled a rutted country road.
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Today we call the Internet
the Information Super-
Highway…
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Information zips, zooms, and swerves to get where it needs
to go in the fastest time possible.
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Consider the difference…
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Speed on a rutted country road?
10-15 mph
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Speed on a super-highway?
65-70 mph in the United States
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So if you need to travel 400 miles to your destination…
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Rutted road
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Rutted road
400 miles = 20 hours
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Super highway
Rutted road
400 miles = 20 hours
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Super highway
400 miles = 5 ¾ hours
Rutted road
400 miles = 20 hours
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On the Internet
Instead of miles per hour…speed is measured in
Megabytes per second.
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That Taylor Swift song you want to
download?
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That Taylor Swift song you want to
download?
It’s 3.4 MB in size
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That Taylor Swift song you want to
download?
It’s 3.4 MB in size
Today, that will take approximately 18
seconds to download.
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In 1986 it would have taken over 49 minutes to download!
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Why are things so much faster today?
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One reason is better roads.
Cables and wireless technology are the Internet roads that connect users.
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Improvements in cables and transmission center
technology were like transforming rough country roads into super highways.
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They allowed an increase in transmission speeds while
reducing external and transmission noise.
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Fiber optic cables, satellite, and microwave technology
allow data to move faster and with fewer errors.
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But you don’t have to worry about any of this.
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It all happens behind the scenes…
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…almost like magic!
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Did you know…
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Technology is always changing.
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Hardware is becoming…
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Hardware is becoming…
Faster
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Hardware is becoming…
FasterCheaper
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Hardware is becoming…
Faster Cheaper
And can store more data
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Tomorrow’s gadgets will probably look very different from the ones we use today.
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Did you know that?
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If not…
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You do now.
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Music: “Summer Romance”Body & Soul: Quiet Moments
© 2004 Allegro Corp.