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  2. Two's complement - Wikipedia

    en.wikipedia.org/wiki/Two's_complement

    Two's complement is the most common method of representing signed (positive, negative, and zero) integers on computers, [1] and more generally, fixed point binary values. Two's complement uses the binary digit with the greatest value as the sign to indicate whether the binary number is positive or negative; when the most significant bit is 1 the number is signed as negative and when the most ...

  3. Sign extension - Wikipedia

    en.wikipedia.org/wiki/Sign_extension

    In a move or convert operation, zero extension refers to setting the high bits of the destination to zero, rather than setting them to a copy of the most significant bit of the source. If the source of the operation is an unsigned number, then zero extension is usually the correct way to move it to a larger field while preserving its numeric ...

  4. Signed number representations - Wikipedia

    en.wikipedia.org/wiki/Signed_number_representations

    In that extension, the least significant bit is almost a sign bit; zero has the same least significant bit (0) as all the negative numbers. This choice results in the largest magnitude representable positive number being one higher than the largest magnitude negative number, unlike in two's complement or the Protocol Buffers zig-zag encoding.

  5. Comparison of data-serialization formats - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_data...

    ^ The "classic" format is plain text, and an XML format is also supported. ^ Theoretically possible due to abstraction, but no implementation is included. ^ The primary format is binary, but text and JSON formats are available. [8] [9]

  6. List of file formats - Wikipedia

    en.wikipedia.org/wiki/List_of_file_formats

    .ipa, .IPA – file extension for apple IOS application executable file. Another form of zip file..JAR – archives of Java class files; JEFF – a file format allowing execution directly from static memory [18].ko – Loadable kernel module; LIB – a static library on Microsoft platforms; LIST – variable list

  7. Sign bit - Wikipedia

    en.wikipedia.org/wiki/Sign_bit

    Almost always, if the sign bit is 0, the number is non-negative (positive or zero). [1] If the sign bit is 1 then the number is negative. Formats other than two's complement integers allow a signed zero : distinct "positive zero" and "negative zero" representations, the latter of which does not correspond to the mathematical concept of a ...

  8. Negative base - Wikipedia

    en.wikipedia.org/wiki/Negative_base

    Negative-base systems can accommodate all the same numbers as standard place-value systems, but both positive and negative numbers are represented without the use of a minus sign (or, in computer representation, a sign bit); this advantage is countered by an increased complexity of arithmetic operations. The need to store the information ...

  9. Offset binary - Wikipedia

    en.wikipedia.org/wiki/Offset_binary

    A simple solution to this is to bias the analog signals with a DC offset equal to half of the A/D and D/A converter's range. The resulting digital data then ends up being in offset binary format. [5] Most standard computer CPU chips cannot handle the offset binary format directly [citation needed]. CPU chips typically can only handle signed and ...