Android
Android is an operation system for mobile phones which is developed by the Open Handset Alliance and based on Linux and Java.
A2DP
Advanced Audio Distribution Profile
This Bluetooth profile supports the transmission of stereo music in good quality to headphones or speakers.
Bluetooth
With Bluetooth devices may be wirelessly connected. The range is normally up to 10 meters. With Bluetooth one may for example connect mobile phones with headsets, stereo headphones, car kits or keyboards.
Brew
Binary Runtime Environment for Wireless
BREW is an operation system for mobile phones which is developed by Qualcomm.
DMB
Digital Media Broadcast
Transmission standard for mobile television.
DualSIM
Mobile phones equiped with two receivers and SIM card readers. Thus one can be available with two SIM cards at the same time. This can be handy to use a private and a buisiness SIM.
DVB-H
Digital Video Broadcast Handheld
Transmission standard for mobile television optimized for movies in low resolution to be used on displays of mobile phones.
DVB-T
Digital Video Broadcast Terrestrial
Transmission standard for digital television optimized for movies in high resolution optimized for movies in high resolution to be used on normal tv sets.
EDGE
Enhanced Data Rates for GSM Evolution
This data transmission standard is based on GPRS and allows a data transfer rate of up to 236,8 kbit/s. EDGE represents the last possible level of extension for existing GSM networks.
GeoTags
When mobile phones are equiped with camera and GPS they can write the geographical position invisibly into the picture while taking it. This information is called GeoTags.
GPRS
General Packet Radio Service
With this data transmission standard data is split in packages and transferred separately. At the recipient they are rejoined. Simultaneous transfer of data and speech is possible. The data transfer rate is up to 171,2 Kbit/s. The possible top speed is depending on the number of used channels. Here uplink and downlink channels may differ with 14,4kbps each. The more channels a phone supports the faster the data transfer.
GPS
Global Positioning System
GPS is a positioning system based on 30 satellites circling around earth in a height of 12,500 miles sending signals. These are received by GPS receivers which calculate the position and enabling GPS navigation systems to work. GPS can be used worldwide by anyone without paying licence fees.
GSM
Global System for Mobile Communication
Worldwide digital cellular standard primary used for speech but also for relative slow data. In Europe frequencies 900 and 1800 MHz are used and in America 850 and 1900 MHz. In Germany T-Mobile & vodafone started with 900 MHz and e-plus & o2 with 1800 MHz. Meanwhile all German cellular network operators use both frequencies.
HSCSD
High Speed Circuit Switched Data
This data transmission standard combines several channels and thus allows higher data rates which are dependant of the number of used channels.
HSDPA
High Speed Downlink Packet Access
This data transmission standard is based on UMTS and allows a downlink data rate of 3.6 Mbit/s in the beginning and up to 14.4 MBit/s in the final development.
HSPA+
High Speed Packet Access Plus
This data transmission standard is based on UMTS and is an advanced version of HSPA. It allows a downlink data rate of 28 MBit/s and 11 MBit/s in uplink. It works with multiple antennas. With it a continued transformation of 3rd generation mobile networks to 4th generation with Long Term Evolution (LTE) is possible.
HSUPA
High Speed Uplink Packet Access
This data transmission standard is based on UMTS and allows an uplink data rate of 1.45 Mbit/s in the beginning and up to 5.8 MBit/s in the final development.
iOS
iOS is an operation system which is developed by Apple for their own mobile devices (iPhone, iPad & iPod). It was called iPhone OS prior to version 4 and supports multitasking. It is expandable by hundredthousands of applications ("Apps").
IP54
Ingress Protection 54
The IP protection class indicates, how electrical devices are protected against impurities. The protection class consists of two digits. The first indicates protection against foreign particles and the second protection against water. IP 54 means protection against dust deposit and against splash water.
IP57
Ingress Protection 57
The IP protection class indicates, how electrical devices are protected against impurities. The protection class consists of two digits. The first indicates protection against foreign particles and the second protection against water. IP 57 means protection against dust deposit and against immersion.
IP67
Ingress Protection 67
The IP protection class indicates, how electrical devices are protected against impurities. The protection class consists of two digits. The first indicates protection against foreign particles and the second protection against water. IP 67 means dust proof and protection against immersion.
LTE
Long Term Evolution
This fourth generation cellular standard (4G) allows a data transfer rate of up to 300 Mbit/s. It is a successor of the 3G standard UMTS. The data transfer is processed only packet based. The latency (delay between mobile phone and fixed line network) is below 5ms. LTE is able to transfer existing connections to other wireless technologies like WLAN & WiMAX (handover).
Maemo
Maemo is an operation system for mobile devices which is developed by Nokia and based on Linux and Gnome.
MIL-STD-810F
MILitary STanDard 810F
The US Army subsumes several tests of their own military equipment into this standard.
Multitouch
Multitouch is a method for touchscreens where multiple touches of fingers are processed. For example zooming of a screen portion is possible by touching the display with two fingers and moving them away from each other. Multitouch was first used by Apple for the iPhone
NAS
Network Attached Storage
In the most simple case a harddrive with network port making it available in the lan. The data can by accessed via protocols like SAMBA.
PDA
Personal Digital Assistant
Devices of this kind substitute addressbook, note pad and much more. They are quite small and can always be carried along. Usually additional programs may be installed. They have an operation system like OS X, Android, PalmOS, Windows Mobile or Symbian. If PDA and mobile phone are combined the result is called "smartphone".
SAP
SIM Access Profile
This Bluetooth profile enables a car hands free unit to access a mobile phone's SIM card via Bluetooth. The mobile phone is then in standby consuming only little energy. The access data on the SIM card is used by the car hands free unit to route phone calls over itself and use the car antenna.
SkyyBubbles
Function on Skyynet describing topics by showing an informative speech bubble while doing a mouseover
Touchscreen
Resistive touchscreens have a streched polyester foil with a conductive layer on top of a metal coated glass plate. Small balls keep both layers at distance. If the layers are compressed the controller identifies the coordinates by the voltage drop. Resistive touchscreens do not support multitouch.
Capacitative touchscreens have a glass layer coated with a very thin metal layer over the display. From the corners a low voltage is applied which produces an electrical field. If the user touches the screen this field is grounded. By identifying the current which is discharged by the finger the coordinates are detected by the controller. Thus capacitative screens only respond to conductive objects like metal pens or fingers. Capacitative touchscreens may support multitouch.
UMTS
Universal Mobile Telecommunications System
This third generation cellular standard (3G) allows a data transfer rate of up to 7.2 Mbit/s. It is the successor of the 2G standard GSM.
VoIP
Voice over IP
Coming Soon.
WAP
Wireless Application Protocol
This technique enables the display of simple text and graphics on mobile devices. The language to describe the content is called WML (Wireless Markup Language) and is a highly reduced variant of HTML. WAP pages are no graphically impressive websites but short texts. Today advanced mobile phones and smartphones have made WAP more or less irrelevant.
WebOS
WebOS is an operation system for mobile phones which is developed by Palm. It is the successor of PalmOS.
WiMAX
Worldwide Interoperability for Microwave Access
This fourth generation cellular standard (4G) allows wideband connections according to IEEE-802.16 with data rates of up to 70 MBit/s at a distance of up to 50 km. It is a successor of the 3G standard UMTS
WLAN
Wireless Local Area Network
System for wireless radio connections according to IEEE 802.11. Depending on specification different transmission rates from 11-540 MBit/s are supported. Devices like computers, routers & cellular phones can connect to each other in a range of about 100-300ft.
WLAN
Wireless Local Area Network IEEE 802.11b
System for wireless radio connections according to IEEE 802.11b. Supports transmission rates up to 11 MBit/s.
WLAN
Wireless Local Area Network IEEE 802.11g
System for wireless radio connections according to IEEE 802.11g. Supports transmission rates up to 54 MBit/s.
WLAN
Wireless Local Area Network IEEE 802.11n
System for wireless radio connections according to IEEE 802.11n. Supports transmission rates up to 600 MBit/s by using multiple input- and output antennas. This is also known as MIMO (Multiple Input Multiple Output).
WOFF
Web Open Font Format
This compacted data format for fonts is supported by all modern browsers and supports the use of fonts which are not installed on the user's computer on websites. WOFF supports fonts which are stored in the format OpenType or TrueType.
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