Kitties | Posed in Human Activities

I discovered this amusing photograph while browsing the Library of Congress. Click the image to enlarge. The Harry Frees collection of 33 more like it are at this link. If you are a cat person, take a few minutes to browse. You will be glad you did. Then, return.

1914 | Harry Whittier Frees | 1879-1953 | photographer

The LOC has an enormous collection of unique digital images online. It is searchable. Various collections are listed at the previous link. Gallery setting seems like an easy to view format. Images are available for viewing in different screen sizes. Go ahead and enjoy yourself. What else do you have to do today?

Binary | Numbers Using Ø and 1

This is the digital age. Information is represented with the simplest of logic choices. It is either on or off, up or down, yes or no, true or false, right or left, etc. Those simple logical options are combined into more complicated logical arrangements in order to yield more complex outcomes. The basic unit of logic is dependent only upon having two digits to represent it, the zero and the one.

Modern day computer and digital technology processes the 0 or 1 bits of data at incredible rates. My Apple Mini cruises along crunching those digits at a rate of 2.5 billion per second. That isn’t top of the line. But, it gets my jobs done fast enough.

Today, I want to see if you learned how to represent numbers with these two digits. Were you paying attention in school a long time ago? Here is a table of two columns. The left column has some numbers in the base 10 system. The right column has numbers representing them, but in the base 2 system. Notice the pattern. Certain values stand out such as 1, 2, 4, and 8. What about 16?

See if you can fill in the missing values without resorting to Google.

Base10	Base2
0	0
1	1
2	10
3	11
4	100
5	101
6	110
7	111
8	1000
9	1001
10	1010
	100000
63	111111
256
500	111110100
1024
2014
32768