When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. 800 MHz frequency band - Wikipedia

    en.wikipedia.org/wiki/800_MHz_frequency_band

    The 800 MHz frequency band is a portion of the electromagnetic spectrum, or frequency band, that encompasses 790–862 MHz. Being a part of the spectrum known as "UHF Bands IV and V" (i.e. 470 MHz to 862 MHz) it was allocated by the ITU to Broadcasting as the primary user in Region 1 and was used for analogue television broadcasting before ...

  3. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Toll-free telephone numbers in the North American Numbering Plan have the area code prefix 800, 833, 844, 855, 866, 877, and 888. Additionally, area codes 822, 880 through 887, and 889 are reserved for toll-free use in the future. 811 is excluded because it is a special dialing code in the group NXX for various other purposes.

  4. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    Calling an 800-number is free of charge. Calling a 400-number incurs a local access charge. 800-numbers are accessible only to land-line subscribers, while 400-numbers are accessible to all land-line and mobile users. 800-toll-free numbers. 800 toll-free numbers are commonly called "800 免费电话".

  5. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    Hardness comparison table. Brinell HB. (10 mm Ball, 3000 kg load) Vickers HV. (5 kg) Rockwell C HRC. (120 degree cone 150 kg) Rockwell B HRB. (1/16" ball 100 kg)

  6. 800 (number) - Wikipedia

    en.wikipedia.org/wiki/800_(number)

    800 (eight hundred) is the natural number following 799 and preceding 801. It is the sum of four consecutive primes (193 + 197 + 199 + 211). It is a Harshad number, an Achilles number and the area of a square with diagonal 40.

  7. List of interface bit rates - Wikipedia

    en.wikipedia.org/wiki/List_of_interface_bit_rates

    800 kbit/s : 100 kB/s: 1981 ... The total GPU memory bus width varies with the number of memory chips and the number of lanes per chip. ... For direct comparison to ...

  8. Names of large numbers - Wikipedia

    en.wikipedia.org/wiki/Names_of_large_numbers

    This section illustrates several systems for naming large numbers, and shows how they can be extended past vigintillion . Traditional British usage assigned new names for each power of one million (the long scale ): 1,000,000 = 1 million; 1,000,0002 = 1 billion; 1,000,0003 = 1 trillion; and so on. It was adapted from French usage, and is ...

  9. Comparison of Intel processors - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_Intel_processors

    800 MHz – 2.266 GHz Socket 479: 90 nm, 130 nm 5.5 W – 27 W 1 400 MHz, 533 MHz 32 KiB 1 MiB – 2 MiB N/A Pentium D/EE: 8xx 9xx Smithfield Presler: 2005–2008 2.66 GHz – 3.73 GHz Socket T: 65 nm, 90 nm 95 W – 130 W 2 533 MHz, 800 MHz, 1066 MHz 16 KiB per core 2×1 MiB – 2×2 MiB N/A Pentium Dual-Core: E2xxx E3xxx E5xxx T2xxx T3xxx

  10. National conventions for writing telephone numbers - Wikipedia

    en.wikipedia.org/wiki/National_conventions_for...

    Toll Free: These are usually ten digit numbers beginning with 800 or 400. 800 (toll-free) are accessible only when called from landline phones, while 400 (shared toll) are accessible from all phones. 400 XXX XXXX or 800 XXXX XXXX. Service numbers: These are usually 3- to 5-digit numbers (e.g. Police is 110) used to access an emergency service ...

  11. Number - Wikipedia

    en.wikipedia.org/wiki/Number

    A number is a mathematical object used to count, ... The earliest known use of irrational numbers was in the Indian Sulba Sutras composed between 800 and 500 BC.