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    iPhone 6 Plus vs Samsung Galaxy note 7 and the Galaxy S7: comparison of characteristics

    In early August, Samsung officially unveiled the Galaxy note 7. Phablet was pretty good, but in the mobile market there are many smartphones with large screens, which is unable to compete with the latest flagship of Samsung. However, the main rivals Galaxy note 7 are considered to be the Galaxy S7 edge and iPhone 6s plus. Which one is better?

    Sam vs Ip

    iPhone 6S plus was presented almost a year ago. In a month Apple will show its successor, although at the moment he is still a current flagship with a 5.5-inch full HD display. Samsung Galaxy S7 edge offers the same diagonal display, but with a resolution of Quad HD. A new model of Galaxy note 7 is characterized by the 5.7-inch screen with a Quad HD resolution and a protective glass Corning Gorilla glass 5. The latter, as we have seen, the fall is stronger than its predecessors, but it is much less scratch resistant.

    We have to admit that all three devices have several common traits. For example, 64-bit architecture processor, premium build quality, software flash for the front camera and the function of «live» photos. As Samsung device, so iPhone 6 plus allow you to make contactless payments and have biometric sensors. All three devices are able to recognize fingerprints, but the Galaxy note 7 there is also a retinal scanner.

    Speaking about the performance, Samsung Galaxy note 7 is equipped with a processor Samsung Exynos 8890 with a clock frequency of 2.3 GHz or a Qualcomm Snapdragon 820 with a frequency of 2.15 GHz, depending on the region. In this respect, features of the Galaxy S7 edge does not differ from it. for iPhone 6S plus features an a chip Apple A9, paired with a coprocessor M9, which is in the background and monitors the activity of the owner. the iPhone can only boast 2 GB of RAM at a time as S7 edge and note 7 have 4 GB of RAM. It seemed that the advantage on the side of Samsung, but only on paper: in real usage iPhone is faster.

    Below you can read the full technical specifications for iPhone 6 plus, Samsung Galaxy note 7 and the Galaxy S7 edge.

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    K-GLASS: GLASSES-computer with an augmented reality

    Specialized microchip that simulates the operation of the human brain, provides a high efficiency of recognition of objects in the field of view of the camera.

    Augmented Reality Glasses K-Glass, by the Korea Science and Technology Institute of Advanced Studies (KAIST), different from other similar developments are much higher speed with less power consumption.

    Many of Augmented Reality (Augmented Reality, AR) for the identification of objects and display the relevant information used barcodes, QR-codes and other labels that fall within the field of view. However, this approach is not very effective in open spaces, and then have to resort to the resource-intensive algorithms for pattern recognition and matching images. As a result, overall system performance seriously reduced, and increases the likelihood of errors.
    Flowchart AR-microchip.

    To solve the problem experts KAIST established the world’s first AR-specialized microchip that simulates the operation of the human brain. The researchers, in particular, tried to recreate in a silicon model of parallel processing of image data of the visual cortex. The chip automatically selects the image the most important details, treating them with high efficiency. At the same hardware resources are not spent on the analysis of secondary information. The result — a 76-percent reduction in energy consumption compared to other systems of augmented reality.

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    3D-model of the object and additional information are superimposed on the real image.

    Designed in KAIST chip made on 65-nanometer technology; its area is 32 mm². Claimed performance is 1.22 trillion operations per second at an operating frequency of 250 MHz, power consumption of 778 mW and a supply voltage of 1.2 V. That is, the product ensures the effectiveness of 1.57 trillion calculations per 1 watt of energy used.

    The prototype glasses K-Glass is equipped with a camera with 5 megapixels, which allows you to capture video in 720p at 30 frames per second microdisplay with 800 × 600 pixels and touch control panel. On the possible timing of the commercial version of the product are not reported.

    Read also about the projection augmented reality glasses castAR, best Recon Snow2 wearable computers and «smart» glasses with a modular design Pivothead SMART.

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    SAMSUNG GALAXY S5 AND GEAR FIT: smartphones and bracelet with functions FITNESS Tracker

    The flagship mobile unit is equipped with screen Full HD, fingerprint sensor and a 16-megapixel camera, and the bracelet was a curved display and heart rate sensor.
    Samsung has showed the world the Galaxy S5, a new generation of smart phone, rumors of which walked on the Internet almost a year. At the same time it was introduced a new wearable device — tracker Activity Gear Fit.

    4aa2b86f77c185c1ee3263d5290f3478_resized_width_627d9a0b330d7795e4897f4f3a221a90_500_q95Smartphone

    The manufacturer claims that the establishment of Galaxy S5 attention was focused on those functions that are most in demand among users: photo and video shooting, wireless, security, and fitness tools.

    A few words about the hardware component. The smartphone is endowed with a 4-core processor clocked at 2.5 GHz, 2 GB RAM, a storage capacity of 16 or 32 GB MicroSD slot and a 5.1-inch Super AMOLED display with a resolution of 1080 × 1920 pixels (Full HD). Dimensions of new items — 142,0 × 72,5 × 8,1 mm, its weight — 145, the battery capacity is 2800 mA • h.

    The main camera at the Galaxy S5 has received a 16-megapixel sensor. According to Samsung, the camera is characterized by the fastest in the world (including smartphones) AF system: the process takes 0.3 seconds. You can record video ultra high resolution 4K (in addition to Full HD), as well as shooting at 120 frames per second. The front camera has 2-megapixel sensor.

    Security, inter alia, include fingerprint sensor. To remove the need to make a finger print to the «home» button. Thus it is possible, for example, to unlock or verify their identity during those or other transactions.

    Wireless connections presented adapters Wi-Fi 802.11a / b / g / n / ac (MIMO 2×2), and Bluetooth 4.0 low-power microchip NFC and infrared port. The speed of data transmission in cellular networks fourth generation can reach 150 Mbit / s.

    The smartphone has a plurality of sensors that allow to gather information about the environment and the actions of the user: it is an accelerometer, gyroscope, electronic compass, barometer, proximity, light, and even heart rate. Fitness indicators such as the number of steps taken, calories burned and activity data are shown in Annex S Health 3.0.
    d41a5e62dd0b0525c5a36fcdd765754b_resized_width_0342e89b819b3bce40bc10bfefa1fd05_500_q95«Smart» bracelet Gear Fit.

    Galaxy S5 is made in waterproof housing. It is running Android 4.4.2 Kitkat. Sales will begin in April, the price of Samsung has not named.

    The second novelty, bracelet Gear Fit, can work both independently and in tandem with the Galaxy-smartphone. The device has a curved 1.84-inch Super AMOLED screen with a resolution of 432 × 128 pixels, adapter, Bluetooth 4.0 LE, an accelerometer, a gyroscope, heart rate sensor and battery capacity of 210 mA • h, a charge which is enough for three or four days. Tracker weighs 27 grams, its dimensions — 23,4 × 57,4 × 11,95 mm.
    The display can be viewed Gear Fit notifications cellular device — information on calls, SMS and so on. The bracelet also allows the smartphone to give some commands — for example, reject an incoming call. Of course, as befits a fitness gadget, it collects information about the user’s activity and quality of sleep.

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    Samsung points out that thanks to the curved shape of the screen from the comfort of the bracelet covers the wrist. The device is protected from dust and water; for it will be offered colorful interchangeable straps. Sales will start in April.

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    HOW TO IMPROVE PERFORMANCE hard drives

    Singapore researchers suggest using hard drives in a special composite material based on an alloy of iron and platinum, which will increase storage density informatsii.Spetsialisty of the Singapore Agency for Science, Technology and Research (A * STAR) proposed a technology that can help significantly increase the density of recording information on magnetic plates, and hence — and increase the capacity of hard drives.

    791a6d0928d15be5c8dd8d1f62efdeb1_resized_width_dcb32f8e0714f73bc892a38aa3be9750_500_q95Let us briefly recall the principle of the hard drive. When an alternating electric current to the read / write head occurs alternating magnetic field acts on the ferromagnetic surface of the disc and reverses the direction of the magnetization vector of domains depending on the magnitude of the signal. Thus, the recording of data. When reading the rotation plate alters the magnetic flux in the magnetic head, which results in a variable electric signal due to electromagnetic induction.

    The smaller size of this field are magnetized, the more information can be recorded per unit area of ​​the disc. In this sense, it is considered very promising alloy of iron and platinum (FePt). Due to the nature of its crystal structure dimensions of the domains may be only a few tens of nanometers. Furthermore, the plates of the alloy are resistant to higher temperature.

    However, to change the status of domain FePt-plates require a much more powerful magnetic field than in the case of conventional drives. Singapore researchers seem to have found a way to solve this problem.

    8e13de514d78df8c2adf95cd97010f97_resized_width_b3eaf413717ef460a5e29f0b9f81ac8f_500_q95It is proposed to use a composite material based on FePt alloy and a special «soft» magnetic material. It is argued that such a composite with exchange connections can significantly reduce the amount of energy required to write data. It may be possible to increase the density of information storage and resistance to thermal effects (the last parameter depends on the share of «soft» matter in the overall structure of the coating).

    The study is published in the publication Journal of Magnetism and Magnetic Materials.

    There are other approaches to increase the capacity of hard drives. For example, the company offers HGST drives fill the sealed unit with helium. This gas has seven times less dense than air, due to which decreases the resistance force acting on a rotating plate, and reduced lateral forces. At the same time good thermal conductivity of helium makes it possible to reduce the heating disks and improve acoustic performance. The result is increased storage density, but the plates may be arranged closer to each other, thus increasing the number of dimensions without changing drives.

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