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  2. Serial presence detect - Wikipedia

    en.wikipedia.org/wiki/Serial_presence_detect

    In computing, serial presence detect (SPD) is a standardized way to automatically access information about a memory module. Earlier 72-pin SIMMs included five pins that provided five bits of parallel presence detect (PPD) data, but the 168-pin DIMM standard changed to a serial presence detect to encode more information.

  3. Spectral power distribution - Wikipedia

    en.wikipedia.org/wiki/Spectral_power_distribution

    Mathematically, for the spectral power distribution of a radiant exitance or irradiance one may write: =where M(λ) is the spectral irradiance (or exitance) of the light (SI units: W/m 2 = kg·m −1 ·s −3); Φ is the radiant flux of the source (SI unit: watt, W); A is the area over which the radiant flux is integrated (SI unit: square meter, m 2); and λ is the wavelength (SI unit: meter, m).

  4. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    As with other spreadsheets, Microsoft Excel works only to limited accuracy because it retains only a certain number of figures to describe numbers (it has limited precision). With some exceptions regarding erroneous values, infinities, and denormalized numbers, Excel calculates in double-precision floating-point format from the IEEE 754 ...

  5. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    The Document Foundation works with external organisations such as the Apache Foundation to help drive all three products forward. [5] Siag — for Linux, OpenBSD and Apple Mac OS X. A simple old spreadsheet, part of Siag Office. [6] Sheets — for MS Windows, Linux, FreeBSD, Apple Mac OS X and Haiku. Part of the extensive Calligra Suite.

  6. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]

  7. Short Payment Descriptor - Wikipedia

    en.wikipedia.org/wiki/Short_Payment_Descriptor

    Short Payment Descriptor (SPAYD, SPD) is a compact data format for an easy exchange of payment information using modern electronic channels, such as smart phones or NFC devices. Usage [ edit ]

  8. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

    www.aol.com/products/utilities/ad-free-mail

    SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...

  9. Superconducting nanowire single-photon detector - Wikipedia

    en.wikipedia.org/wiki/Superconducting_nanowire...

    As of 2023, a superconducting nanowire single-photon detector is the fastest single-photon detector (SPD) for photon counting. [8] [9] [10] It is a key enabling technology for quantum optics and optical quantum technologies. SNSPDs are available with very high detection efficiency, very low dark count rate and very low timing jitter, compared ...