GPRS (General Packet Radio Service)

General Packet Radio Service (GPRS) is a packet oriented Mobile Data Service available to users of the 2G cellular communication systems Global System for Mobile Communications (GSM), as well as in the 3G systems. In the 2G systems, GPRS provides data rates from 56 up to 114 kbit/s.

GPRS data transfer is typically charged per megabyte of traffic transferred, while data communication via traditional circuit switching is billed per minute of connection time, independent of whether the user actually is using the capacity or is in an idle state. GPRS is a best-effort packet switched service, as opposed to circuit switching, where a certain Quality of Service (QoS) is guaranteed during the connection for non-mobile users.

PENTAX announces White K2000 DSLR camera

PENTAX imaging has announced a limited edition white version of the K2000 camera with a double zoom kit. The camera continues to use a 10.2 megapixel sensor and a 2.7-inch wide-view LCD monitor, and is still tailored towards newcomers: a custom image mode containing six preset options and a full auto picture mode potentially take full control of the scene rather than pushing the user into manual control. Other touches include ten different scene modes, a help button, and a dust alert function for the sensor. For the limited edition PENTAX includes an smc 50-200mm F4-5.6 AL lens and smc 18-55mm F3.5-5.6 Al lens, both of which come in the same white as the camera body. Pricing isn't available for the camera, though the existing model sells for $800; the white version appears in February.