What did you think about the last episode of Seinfeld?

A good answer might be:

Not much.

In thinking about the last episode of Seinfeld, you were thinking about something intangible. You can't grab it and throw it against a wall, or break it in half, or weight it on a scale. It does not have a physical existence.

In contrast, the TV set you watched Seinfeld on is tangible. It does has a physical existence. You can grab a TV set and throw it against a wall, and you can break it in half (and your grades will probably improve if you do.) You can weight it on a scale.

TV sets are useful because of the combination of the tangible (the set itself) and the intangible (the programs that it displays.) Computer systems are useful in much the same way---they are a combination of tangible components called hardware and intangible components called software.

The hardware components of a computer system are the tangible, physical parts made up of electronic and mechanical parts.

The software components of a computer system are the intangible parts: the data and the computer programs. Software can be stored on physical parts such as floppy disks just as a Seinfeld episode could be recorded onto a VCR tape. But the computer program is an intangible collection of ideas, not the physical storage device.

QUESTION 2:

Say that a book costs $45.00. How much of that is the cost of the paper, binding, and glue?