What's the difference between the three gprs,gsm,wap?

Question: Why should there be GPRS.
Answer: At present, use mobile phone to surf the internet still appear somewhat unsatisfactory.
Therefore, the comprehensive solution GPRS also came into being,
This new technology will enable you to connect quickly and easily at any time, anywhere,
At the same time the cost is very reasonable. To put it simply: the speed went up, the content was rich, the application increased,
And the cost is more reasonable.

Question: GPRS is what.
Answer: It is the abbreviation of Gerneral Packer Radio service, Chinese translation is the General Wireless grouping service,
Specifically, GPRS is a high-speed data processing technology, that is, the "form" of packets to the user hand.
Therefore, the GPRS technology can make the mobile phone online time-saving, labor-saving, save the cost. To make an analogy,
GPRS is like the ADSL of mobile communication equipment, and GSM is the ordinary fixed telephone line.

Question: GPRS and GSM compare have what advantage.
Answer: Compared to the GSM 9.6kbps access speed, GPRS has 171.2kbps access speed;
In connection with the establishment of time, GSM needs 10-30 seconds, and GPRS only need a very short time to access the relevant request;
And for the cost, GSM is based on the connection time billing, and GPRS only need to be based on data flowmeter fee;
GPRS is relatively much higher than GSM for the utilization of network resources.

Question: What Gprs+wap means to us.
Answer: GPRS and WAP combination is the current "mobile phone access" to a new step on the best implementation of the program:
GPRS is a powerful low-level transmission, WAP as a high-level application, if the WAP compared to speeding vehicles,
So GPRS is a wide and smooth highway, let you in the wireless information world at will gallop freely.

Question: GPRS has any outstanding advantages.
Answer: The three major advantages are:
(1) High-speed data transmission
10 times times the speed of GSM, more to meet your ideal needs, but also stable transmission of large capacity
High-quality audio and video files, is not a general great progress.
(2) Always online
Because there is almost no time to establish a new connection (that is, you do not need to establish a call connection for each access to the data),
So you can always keep in touch with the network, for example, if there is no GPRS support, when you are roaming online,
At this point, there is a telephone access, most of the time you have to disconnect after the call, after the call to dial the Internet again.
This is really a very annoying thing for most people. And with GPRS, you can easily resolve this conflict.

(3) Only according to the data flowmeter fee
That is, based on the amount of data you transmit (for example, when downloading information on the web), instead of charging by the time of the Internet, which means,
You don't have to pay for data transfer, even if you're "online". To make a "call" analogy,
When using a Gsm+wap mobile phone, it is much more reasonable to use Gpre+wap to access the Internet.
Just as the telephone is not charged, only the conversation will calculate the cost. In short, it really embodies the principle of less pay less