Pico Oscilloscope Range

Posted on by
Reply

I was searching for oscilloscope application notes and ended up finding the Pico Oscilloscope Range. If I was in the market for a PC based scope (I’m not) then I’d probably check these out. There’s some cool equipment there!

(Note: my MSO5074 scope has 8-bit vertical resolution, which is fairly standard, but if I ever find myself needing higher vertical resolution I will check out the
PicoScope® 4000 Series high resolution oscilloscopes.)

While checking out the Pico Tech site I found some other interesting articles:

And I also found Common Oscilloscope Applications.

Wrong, wrong, wrong

Posted on by
Reply

I’m reading Fundamentals of Data Engineering: Plan and Build Robust Data Systems, wherein the authors say:

Data is stored in a table of relations (rows), and each relation contains multiple fields (columns); see Figure 5-7. Note that we use the terms column and field interchangeably throughout this book.

There are two mistakes. The first is that tables are relations, rows are tuples. The second is that a field is the intersection of a row and a column, columns and fields are different things.
I have to wonder what business the authors have publishing a book on data engineering while failing to know such basic things.