wiki:camera:3g:misc:glossary
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wiki:camera:3g:misc:glossary [2015/06/28 19:01] |
wiki:camera:3g:misc:glossary [2021/12/15 12:07] (current) |
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| + | ===== GLOSSARY ===== | ||
| + | |||
| + | **CDMA**- Code Division Multiple Access is a competing cell | ||
| + | phone service technology to GSM, which is the world’s most | ||
| + | widely used cell phone standard. Sprint, Verizon, and Virgin | ||
| + | Mobile use CDMA.\\ | ||
| + | |||
| + | **GPRS**- General Packet Radio Service was early technology | ||
| + | to enable data communication on GSM networks. It has since | ||
| + | been replaced by better data technologies such as EDGE and | ||
| + | 3G. It is based on GSM and compliments SMS.\\ | ||
| + | **GSM**- Global System for Mobile communications. Cell phones | ||
| + | use a cellular provider’s GSM network by searching for cellular | ||
| + | phone towers in the nearby area. GSM has more complete | ||
| + | global coverage due to roaming and international roaming | ||
| + | contracts. AT&T and T-Mobile use GSM.\\ | ||
| + | |||
| + | **MMS**- Multimedia Messaging Service. Takes SMS text | ||
| + | messaging a step further by allowing for longer lengths beyond | ||
| + | the traditional 160-character SMS limit.\\ | ||
| + | |||
| + | **PIR**- Passive Infrared. A PIR sensor does NOT detect or | ||
| + | measure “heat”. It detects the infrared radiation emitted from | ||
| + | an object to detect motion. It triggers the camera to take a | ||
| + | photo or video when an object passes in front of the sensor.\\ | ||
| + | |||
| + | |||
| + | **SIM**- Subscriber Identity Module. A small card used in GSM | ||
| + | devices to identify your account to the cellular carrier. Users | ||
| + | may change SIM cards between cameras and the phone | ||
| + | number and data plans transfer with it.\\ | ||
| + | |||
| + | **SMS**- Short Message Service. SMS is also often referred to | ||
| + | as texting, sending text messages or text messaging. The | ||
| + | service allows for short messages to be sent from one cellular | ||
| + | device to another cellular device or from the Internet to a | ||
| + | cellular device.\\ | ||
| + | |||
| + | **SMTP**- Simple Mail Transfer Protocol is an internet standard | ||
| + | for electronic mail (e-mail) transmission across Internet | ||
| + | Protocol (IP) networks. SMTP was first defined by RFC 821 | ||
| + | (1982, eventually declared STD 10) and last updated by RFC | ||
| + | 5321 (2008) which includes the Extended SMTP (ESMTP) | ||
| + | additions and is the protocol in widespread use today.\\ | ||
| + | ---- | ||
| + | ---- | ||
| + | {{backlinks> | ||
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