Technology News India

The Digital Camera news is the launch of the new Canon EOS 60D DSLR which offers advance function likes ISO capabilities that range from 100 – 6400, with a new Multi-control Dial, and a HDMI port and some of the features of the new Canon EOS 60D Features include Full HD 1080p Video Recording, an In-Camera RAW-to-JPEG Processor, powered by the Digic 4 Image Processor.

It has a 3.0-inch Clear View LCD monitor and an 18 MP CMOS sensor. This camera comes with a EOS HD Video mode with manual exposure control. The External microphone has improved sound quality. It also features the 9 point Auto Focus system.

It is Compatible with all canon EF and EF-S lenses and the viewfinder has 96% viewfinder.

The latest Mobile phone news is the launch of the new Samsung Wave 723 with specifications that includeQuad band GSm and Dual band 3G HSDPA support. The dimensions of this phone are 109.5 mm x 53.9 mm x 11.8 mm. It comes with a 3.2-inch TFT capacitive touchscreen, which can display up to 256K colors at a resolution of 240 x 400 pixels. It also has an accelerometer sensor for UI auto-rotate and it features the TouchWiz UI 3.0 interface. It also has Multi-touch support and a 3.5 mm audio jack.

The internal memory is about 90 MB which can be expanded to up to 16GB using a micro SD card. For connectivity options it has GPRS/EDGE and 3G HSDPA, 7.2 Mbps, with a WLAN Wi-Fi 802.11 b/g/n receiver. It also supports Bluetooth v3.0 with A2DP and has a microUSB v2.0port for data transfer.

It comes with an integrated 5 megapixel camera that can capture images at a resolution of 2592 x 1944 pixels, has autofocus, and a LED flash which features such as Smile detection and geo-tagging. It operates using the proprietary Samsung Bada OS which was another important feature in the technology news off late.

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Telecom Technology News

Before discussing about telecom technologies, at first we should be aware of the term ‘’telecommunication”, it is said to be as sending some sort of information over particular distance. As we know in earlier times telecommunication was only possible via visual signals like smoke signals, signal flags, loud whistles etc. Nowadays telecommunication means the use of radio or microwave communication apart from telegraph, telephone, teleprinter etc. Again a telecommunication basically comprises of three units namely-transmitter, medium, receiver. Generations of cellular networks are 1G, 2G, 3G, and 4G.

1st Generation

1G (First Generation System) was based on analogue technology. It uses the FDMA technique for making communication.

2nd Generation

 It was also known as Digital Cellular System. 2G technologies mainly compromises of GSM, IS-95, IS-136.Of which GSM based on TDMA technique,IS-95 based on CDMA technique & IS-136 better known as D-AMPS based again on TDMA technique. This technology brings two basic terms like voice services & slow data transmission. Providing data rates up to 236.8 kbps. Same in case of CDMA One evolve to CDMA2000 1x or 1xRTT proving both voice & data communication at a good data rate of around 60-100 kbps compared to almost 14.4 kbps in case of CDMA One. Slowly but steadily we are heading towards the high data rate system also known to be as 3G (Third Generation System).

3rd Generation

Already 2.5G systems were introduced to facilitate the need of high data rate consumption, but it was not enough. Soon individuals demands for separate packet data rather than circuit switched data. Moving towards 3G it is a part of IMT-2000 providing some new services like video calls, mobile TV, mobile internet, voice calls, etc. Again new license was to be obtained for new frequency spectrum & the equipments were quite different, so a whole new set up was required. Under the 3G CDMA 2000 EV-DO Release 0 was also introduced. This technology was using both CDMA & TDM technique. Its aim was to achieve more than 2 Mbps data rates. After that same like that of 2G, 3G was evolved into 3.5G also known as HSPA comes under UMTS system which was combination of HSDPA (High Speed Downlink Packet Access) & HSUPA (High Speed Uplink Packet Access).Here the data rates almost reach up to 14 Mbps as downlink & 5 Mbps as uplink.  

4th Generation

 4G offers around 100 Mbps. 4G uses the term either LTE or Wimax, but all are using same modulation technique i.e., OFDM. Right now this 4G has evolved to 4G Advanced in some countries & offering the data rates of around 1Gbps.

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