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  2. 1G - Wikipedia

    en.wikipedia.org/wiki/1G

    Although 1G also used digital signaling to connect the radio towers (which listen to the handsets) to the rest of the telephone system, the voice itself during a call is encoded to digital signals in 2G whereas 1G uses analog FM modulation for the voice transmission, much like a 2-way land mobile radio. Most 1G networks had been discontinued by ...

  3. List of wireless network technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    1G or (1-G) refers to the first generation of cellular network technology. These are the analog telecommunication standards that were introduced in 1979 and the early to mid-1980s and continued until being replaced by 2G digital telecommunications. The main difference between these two mobile telephone generations is that in 1G systems the ...

  4. Approximate measures - Wikipedia

    en.wikipedia.org/wiki/Approximate_measures

    most common size: 2 1 ⁄ 2 fl dr or 10 mL [17] 2 fluidrachm or 8 mL, [11] or 7.5 mL [18] (actual range: 8.4–10.4 mL [12]) 2 fl dram or 8 mL [13] 1 ⁄ 4: 2 dessertspoons = 1 tablespoon tablespoon (mouthful) tbsp. or T., rarely tbls. 1 ⁄ 2 fluid ounce or 20 mL [10] most common size: 5 fl dr or 20 mL [17] 4 fluidrachm or 16 mL, [11] or 15 mL ...

  5. GSM frequency bands - Wikipedia

    en.wikipedia.org/wiki/GSM_frequency_bands

    For example, one version of the Nokia 6340i GAIT phone sold in North America can operate on GSM-1900, GSM-850 and legacy TDMA-1900, TDMA-800, and AMPS-800, making it both multi-mode and multi-band. As a more recent example the Apple iPhone 5 and iPhone 4S support quad-band GSM at 850/900/1800/1900 MHz, quad-band UMTS/HSDPA/HSUPA at 850/900/1900 ...

  6. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    10 −1 g dg decigram 10 1 g dag decagram 10 −2 g cg: centigram: 10 2 g hg hectogram 10 −3 g mg: milligram: 10 3 g kg: kilogram: 10 −6 g μg: microgram (mcg) 10 6 g Mg megagram 10 −9 g ng: nanogram: 10 9 g Gg gigagram 10 −12 g pg picogram 10 12 g Tg teragram 10 −15 g fg femtogram 10 15 g Pg petagram 10 −18 g ag attogram 10 18 g Eg ...

  7. Centimetre–gram–second system of units - Wikipedia

    en.wikipedia.org/wiki/Centimetre–gram–second...

    For example, the CGS unit of force is the dyne, which is defined as 1 g⋅cm/s 2, so the SI unit of force, the newton (1 kg⋅m/s 2), is equal to 100 000 dynes. On the other hand, in measurements of electromagnetic phenomena (involving units of charge , electric and magnetic fields, voltage , and so on), converting between CGS and SI is less ...

  8. OnePlus 5 - Wikipedia

    en.wikipedia.org/wiki/OnePlus_5

    OnePlus 5 was launched with OxygenOS 4.5 based on Android 7.1.1. One feature in OxygenOS is the reading mode. [17] OxygenOS 5.0 (later updated to 5.0.1) was released in late-2017, bringing Android 8.0 Oreo to the OnePlus 5. [18] Among the changes are an updated launcher, redesigned camera UI, and several system optimizations.

  9. Specific weight - Wikipedia

    en.wikipedia.org/wiki/Specific_weight

    The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...