DDR SDRAM

Double data rate synchronous dynamic random-access memory (DDR SDRAM) is a class of memory integrated circuits used in computers. DDR SDRAM, also called DDR1 SDRAM, has been superseded by DDR2 SDRAM, DDR3 SDRAM and DDR4 SDRAM. None of its successors are forward or backward compatible with DDR1 SDRAM, meaning DDR2, DDR3, and DDR4 memory modules will not work in DDR1-equipped motherboards, and vice versa.

Compared to single data rate (SDR) SDRAM, the DDR SDRAM interface makes higher transfer rates possible by more strict control of the timing of the electrical data and clock signals. Implementations often have to use schemes such as phase-locked loops and self-calibration to reach the required timing accuracy. The interface uses double pumping (transferring data on both the rising and falling edges of the clock signal) to double data bus bandwidth without a corresponding increase in clock frequency. One advantage of keeping the clock frequency down is that it reduces the signal integrity requirements on the circuit board connecting the memory to the controller. The name "double data rate" refers to the fact that a DDR SDRAM with a certain clock frequency achieves nearly twice the bandwidth of a SDR SDRAM running at the same clock frequency, due to this double pumping.

DDR2 SDRAM

DDR2 SDRAM is a double data rate synchronous dynamic random-access memory interface. It superseded the original DDR SDRAM specification, and is superseded by DDR3 SDRAM (launched in 2007). DDR2 DIMMs are neither forward compatible with DDR3 nor backward compatible with DDR.

In addition to double pumping the data bus as in DDR SDRAM (transferring data on the rising and falling edges of the bus clock signal), DDR2 allows higher bus speed and requires lower power by running the internal clock at half the speed of the data bus. The two factors combine to produce a total of four data transfers per internal clock cycle.

Since the DDR2 internal clock runs at half the DDR external clock rate, DDR2 memory operating at the same external data bus clock rate as DDR results in DDR2 being able to provide the same bandwidth but with higher latency. Alternatively, DDR2 memory operating at twice the external data bus clock rate as DDR may provide twice the bandwidth with the same latency. The best-rated DDR2 memory modules are at least twice as fast as the best-rated DDR memory modules.

DDR3 SDRAM

Double data rate type three SDRAM (DDR3 SDRAM) is a type of synchronous dynamic random-access memory (SDRAM) with a high bandwidth ("double data rate") interface, and has been in use since 2007. It is the higher-speed successor to DDR and DDR2 and predecessor to DDR4 synchronous dynamic random-access memory (SDRAM) chips. DDR3 SDRAM is neither forward nor backward compatible with any earlier type of random-access memory (RAM) because of different signaling voltages, timings, and other factors.

DDR3 is a DRAM interface specification. The actual DRAM arrays that store the data are similar to earlier types, with similar performance.

The primary benefit of DDR3 SDRAM over its immediate predecessor, DDR2 SDRAM, is its ability to transfer data at twice the rate (eight times the speed of its internal memory arrays), enabling higher bandwidth or peak data rates. With two transfers per cycle of a quadrupled clock signal, a 64-bit wide DDR3 module may achieve a transfer rate of up to 64 times the memory clock speed megahertz (MHz) in megabytes per second (MB/s). With data being transferred 64 bits at a time per memory module, DDR3 SDRAM gives a transfer rate of (memory clock rate) × 4 (for bus clock multiplier) × 2 (for data rate) × 64 (number of bits transferred) / 8 (number of bits/byte). Thus with a memory clock frequency of 100 MHz, DDR3 SDRAM gives a maximum transfer rate of 6400 MB/s.

Åram

Åram is a village in Vanylven Municipality in Møre og Romsdal county, Norway. The village is located on the mainland, about 12 kilometres (7.5 mi) straight north of the municipal centre of Fiskåbygd. The village has a ferry quay with regular connections to the nearby islands of Kvamsøya, Voksa, and Gurskøya. Åram Church is located in the village.

Åram and all of the mainland for about 5 kilometres (3.1 mi) in all directions was formerly a part of Sande Municipality until 1 January 2002 when it was administratively transferred to Vanylven.

The local football club is Åram/Vankam FK.

References

Goat (zodiac)

The Goat (Chinese: 羊; pinyin: yáng) is the eighth sign of the 12-year cycle of animals that appear in the Chinese zodiac related to the Chinese calendar. The sign is also referred to as the Ram or Sheep sign, since the Chinese word yáng is more accurately translated as Caprinae, a taxonomic subfamily which includes both sheep and goats.

The Year of the Goat (alternatively, Year of the Ram or Year of the Sheep) is associated with the 8th Earthly Branch symbol, 未 (wèi).

Goat or Sheep

The Chinese word yáng refers both to goats and sheep, with shānyáng specifically goats and miányáng sheep. In English, the sign (originally based on a horned animal) may be called either. The interpretation of sheep or goat depends on culture. In Vietnamese, the sign is mùi, which is unambiguously goat. In Japan, on the other hand, the sign is hitsuji, sheep; while in Korea and Mongolia the sign is also sheep or ram. Within China, there may be a regional distinction with the zodiacal yáng more likely to be thought of as a goat in the south, while tending to be thought of as a sheep in the north.

Ram Pothineni

Ram Pothineni (Rām Pōthinēni; born on 15 May 1988) is an Indian film actor of the Telugu film industry. He hails from Hyderabad, Telangana.

Personal life

Ram (Full name: Ram Pothineni) is the son of Murali Mohan Pothineni, the nephew of noted film producer Ravi Kishore Pothineni, popularly known as Sravanthi Ravi Kishore. He was born in Chennai, Tamil Nadu. He did his schooling at Chettinad. Dr.Ramesh babu of Ramesh hospitals in Vijayawada and Guntur is his uncle.

Career

Ram made his debut in 2006 with Devadasu and the film went on to become a blockbuster, running for 500 days in over a dozen centers. His second film, Jagadam was directed by Sukumar. Though it did not do well at the box office, it received critical acclaim. He then appeared in Ready alongside Genelia D'Souza directed by Srinu Vaitla with the film becoming a huge success, prompting remakes into other Indian languages and catapulting him to the big league. In 2009, he had two releases, Maska and Ganesh Just Ganesh, the latter was not successful at the box office. Maska had one of the biggest openings at the time, collecting over ₹2.5 crores on the opening day and recovering its investment within the first week. In 2010, Ram had only one release, Rama Rama Krishna Krishna, produced by Dil Raju and directed by Srivaas. Ram's next film Kandireega was a big blockbuster of 2011 and Ram proved to be the man of the masses along with his lover boy image. His next latest release was Endhukante Premanta with Tamannaah, directed by Karunakaran and produced by Sravanthi Ravi Kishore. The movie was shot in the beautiful lavish locales with a huge budget but it turned out to be an average grosser.

Dance Dance Revolution

Dance Dance Revolution (ダンスダンスレボリューション, Dansu Dansu Reboryūshon), abbreviated DDR and also known as Dancing Stage in earlier games in Europe and Australasia, and some other games in Japan, is a music video game series produced by Konami. Introduced in Japan in 1998 as part of the Bemani series, and released in North America and Europe in 1999, Dance Dance Revolution is the pioneering series of the rhythm and dance genre in video games. Players stand on a "dance platform" or stage and hit colored arrows laid out in a cross with their feet to musical and visual cues. Players are judged by how well they time their dance to the patterns presented to them and are allowed to choose more music to play to if they receive a passing score.

Dance Dance Revolution has been given much critical acclaim for its originality and stamina in the video game market. There have been dozens of arcade-based releases across several countries and hundreds of home video game console releases, promoting a music library of original songs produced by Konami's in-house artists and an eclectic set of licensed music from many different genres. The DDR series has inspired similar games such as Pump It Up by Andamiro and In the Groove by Roxor.