How long have pets been around? Detailed answer

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How long have pets been around? Detailed answer

Big encyclopedia for children and adults

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How long have pets been around?

This can only be judged by the results of archaeological excavations. Today it is believed that the dog was domesticated in the Mesolithic era, the pig, sheep, goat, cattle - in the Neolithic era and later - the horse. Cats began living near humans probably around 7000 years ago in the Middle East, but they were not truly domesticated until 4000 years ago.

Author: Mendeleev V.A.

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What is freestyle?

This is an acrobatic kind of skiing, which in the 60s of the XX century. appeared in the USA and later became known in Europe. Freestyle includes skiing on concave slides (since 1992 - an Olympic view), ski jumping (since 1994 - an Olympic view), as well as ski ballet.

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Plextor M7e SSD 13.01.2015

At the Consumer Electronics Show 2015, Plextor showcased the all-new M7e SSD, which uses the M.2 form factor and PCI Express 2.0 x4 interface, delivering a major performance improvement over the current generation M6e SSD.

While Plextor SSDs are renowned for their reliability and high read/write speeds even after extended use, last year's Plextor M6e is by no means a performance champion. The reason for this was the use of the PCI Express 2.0 x2 interface, which has a maximum bandwidth of about 1 GB / s. However, its successor, the Plextor M7e, will use a PCIe 2.0 x4 interface with up to 2 GB/s bandwidth, which means it will raise the bar.

The Plextor M7e SSD is based on the Marvell 88SS9293 controller and Toshiba's 19nm Multi-Level (MLC) NAND flash memory. In addition, the Plextor M7e will be equipped with power failure protection technology, further enhancing the manufacturer's already legendary SSD reliability.

While Plextor is still working on firmware for the M7e, the latest SSD is already showing significantly better performance than its predecessor. According to CrystalMark, the sequential read speed of the novelty is 1.4 GB / s, and the write speed is about 1 GB / s. Thus, the new Plextor M7e outperforms the Samsung XP941, which is used by many expensive laptops, such as the Apple MacBook Pro.

Plextor plans to release the M7e drive in M.2 form factor with PCIe 2.0 x4 interface. To ensure compatibility with current platforms, Plextor will ship with the new SSD and a special adapter, a small HHHL size card that plugs into a PCI Express 2.0 x4 (x8, x16, etc.) slot. Plextor did the same with the M6e, which can be used in both an M.2 slot and a PCI Express slot.

Plextor is expected to release the M7e SSDs in 256GB, 512GB and 1TB capacities in the second quarter of 2015. Considering the high read and write speeds, as well as a range of Plextor's proprietary technologies, M7e devices could become quite popular SSDs this year. The cost of new products is unknown, but taking into account the simplicity of the design of these drives, I would like to believe that their prices will not be excessively high.

The appearance on the market of the very similar Kingston HyperX Predator PCIe and Plextor M7e will inevitably intensify competition among PCI Express 2.0 x4 SSDs, as well as high-performance drives in the M.2 form factor. As a result, the availability of new SSDs may become higher.

While SSDs based on the Marvell 88SS9293 controller, which supports four PCIe 2.0 lanes, introduced at the beginning of the year, seriously raise the performance bar for mainstream SSDs, such devices may not stay on their pedestal for long.

Given the fact that back in August last year, Marvell introduced the 88SS1093 controller, which supports four PCI Express 3.0 lanes (maximum bandwidth of about 4 GB / s) and can provide even higher write and read speeds, by the middle of the year it is logical to expect more faster M.2 SSDs with PCIe 3.0 x4 interface.

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