1. 1. What is the primary idea of the content in the articles?
The primary idea of the content in the articles is how car navigation systems work and how to use car
navigation. The car navigation have a GPS. In articles, working of GPS is written. Especially,
working of GPS is explained in detail on the hardware side. And where GPS is used in car navigation
systems is explained. In how to use car navigation, the articles explain the operation which button to
be pushed in detail.
2. Do you think the individual sections and headings in the document (articles) clearly represent the
idea that was communicated. Explain the reasons behind your comments.
I think the individual sections and headings in the aarticles clearly represent the idea that was
communicated. In one of the articles, the explanation is divided by the step, and the content is
comprehensible. If each step is understood, everything can be understood. In another article, the
composition of sentences can understand one title because it does the explanation separately for the
main item respectively. Because sentences of the main item are clearly written, I can understand.
3. What details are included in the articles?
The car navigation systems details are included in the articles. In one of the articles, it explains the
usage of the car navigation in detail. For example, explanation of button, selection of destination, the
corresponding screen etc. In another article, it explains the mechanism of the car navigation in detail.
And, it explains GPS in detail. For exmaple, network of satellites, GPS receiver,
method found by present location. In short, these articles explain about car navigation and GPS.
4. Was there anything that was confusing? If so, what is it?
It was written that everyone understood as the first step. It is basic to apply the engine of the car
because it is an explanation of the car navigation. However, because it was not an explanation of the
car navigation, it was confused a little. And it is to put an excrescent advertisement. When an unrelated
advertisement is put, it is confused with the car navigation and GPS though it is an explanation of the
car navigation.
5. What is good about the writing? Why is it good?
In one of two articles, to explain even the preparation before the car navigation is started. And, to
explain as the change in the screen after it starts and the screen where the button corresponded in detail.
In another articles, to explain from the base of the car navigation to explain the function of the car
navigation. And to explain the mechanism of GPS in detail for the explanation of the mechanism of
the car navigation. These is good point because everyone understands.
6. Are there any errors that need to be corrected?
I think that there are some points to which these articles should be corrected. First, it is to put an
excrescent advertisement. Second, it is necessary to put the link related to near sentences. It is
possible to go to link relate at once if it does so. Third, it is put the basic things that everyone
understands. When a lot of information that everyone understands is put, the efficiency at time is not
good. Fourth, it is to put the image corresponding to each sentence.

2. 7. What specific suggestions for improving the articles can you make?
First, it is to put the image corresponding to each sentence. It is because the reader does not make a
mistake in the screen. And the reader is helped to understand the explanation only from the image, and
the efficiency of time improves. Second, emphasizing things and exercise of cautions should change
the color of the character, makes it to a fat character or underlines it. The reader comes to pay attention
to the emphasizing things and exercise of cautions if it does so.
8. Identify three basic differences between how your group would author a similar document and how
this author authored it (as you see it in the link).
First, our group does not author the basic thing that everyone understands. It is because of inefficient
of time.
Second, our group put the image corresponding to each sentence. It is because the reader does not make
a mistake in the screen. And the reader is helped to understand the explanation only from the image,
and the efficiency of time improves.
Third, our group does not put excrescent information. It is because the reader misunderstands
necessary information.
9. Study the following video carefully and then summarize 10 major points that you were able to
understand.
First, GPS can learn all person's physical positions in which the arriving call to carrying is done.
Second, GPS use the orbit of the satellite. Third, GPS operates by using the main three components.
Fourth, the nearby building receive the signal from the satellite, and the cellular phone receive it. Fifth,
the signal from the satellite is received, and the exact location is understood in the place with more
buildings. Sixth, the person who has the cellular phone can protect it from the release of a physical
pursuit. Seventh, it becomes impossible to use GPS when the battery of the cellular phone cuts.
Eighth,in GPS, the electric wave can be pursued, and a real-time, portable location information be
understood. Nineth, in the position-fix accuracy of the GPS receiver, there are various factors like a
factor and an artificial factor, etc. because of a fundamental error margin. Tenth, GPS has the message
switching system that uses the location information together.
10. Study the following video carefully and then summarize 10 major points that you were able to
understand.
First, when the Wi-Fi terminal receives the signal of the Wi-Fi router, the Mac address can be acquired.
Second, the Mac address of the Wi-Fi router is registered in the server beforehand with the location
information. Third, the Wi-Fi terminal transmits the Mac address of two or more signals. Fourth, the
server can calculate an other position of the Wi-Fi equipment. Fifth, iPhone obtains the electric wave of
a surrounding Wifi access point. Sixth, it transmits to the server bringing the Mac address in the
obtained Wifi access point together, and the location information is acquired as a response. Seventh,
the same retrieval position is quickly detected. Eighth, the position often used is good at the bookmark.
Nineth, near shop information can be retrieved. Tenth, the map can be retrieved from the address of the
person who is registering in the where to make contact to the pinpoint.