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We now continue our journey of big data
technology having studied map produce and

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got started with a programming assignment
last week.

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We now turn to distributed file systems,
databases and most importantly, the

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emerging trends and directions which this
technology is taking.

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I must warn you that, this week's lecture
is rather broad, covers a lot of ground,

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and, is pretty scarce on deep detail
examples.

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We're, we're just covering too much this
week to afford too many examples.

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This week's lecture is therefore, much
more of a high level overview of where big

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data technology came from and where it's
going, will be very useful to graduate

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students.
But, might leave some of you who don't

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have a strong background in operating
systems, databases, etc., behind a little

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bit.
But, I'm sure many of you will learn a lot

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and derive some fundamental insights into
what big data is all about what the fuss

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about the technology is.
At the same time, don't be disheartened if

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you start getting left behind because of a
lack of, understanding of how database

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technology works.
But, bear with me and pick up whatever you

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can from this lecture, which I think,
really reflects my understanding and

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insight after talking to many people who
are leaders in this field today.