When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Duplicating machines - Wikipedia

    en.wikipedia.org/wiki/Duplicating_machines

    A copying clerk would begin by counting the number of master letters to be written during the next few hours and by preparing the copying book. Suppose the clerk wanted to copy 20 one-page letters. In that case, he would insert a sheet of oiled paper into the copying book in front of the first tissue on which he wanted to make a copy of a letter.

  3. QWERTY - Wikipedia

    en.wikipedia.org/wiki/QWERTY

    In the QWERTY layout many more words can be spelled using only the left hand than the right hand. Thousands of English words can be spelled using only the left hand, while only a couple of hundred words can be typed using only the right hand [10] (the three most frequent letters in the English language, E T A, are all typed with the left hand ...

  4. Gestetner - Wikipedia

    en.wikipedia.org/wiki/Gestetner

    Gestetner. An A4-size Gestetner offset-printing machine. The Gestetner is a type of duplicating machine named after its inventor, David Gestetner (1854–1939). During the 20th century, the term Gestetner was used as a verb—as in Gestetnering. [1] The Gestetner company established its base in London, filing its first patent in 1879.

  5. Photocopier - Wikipedia

    en.wikipedia.org/wiki/Photocopier

    Photocopier. A photocopier (also called copier or copy machine, and formerly Xerox machine, the generic trademark) is a machine that makes copies of documents and other visual images onto paper or plastic film quickly and cheaply. Most modern photocopiers use a technology called xerography, a dry process that uses electrostatic charges on a ...

  6. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    A binary number is a number expressed in the base -2 numeral system or binary numeral system, a method for representing numbers that uses only two symbols for the natural numbers: typically "0" (zero) and "1" (one). A binary number may also refer to a rational number that has a finite representation in the binary numeral system, that is, the ...

  7. List of duplicating processes - Wikipedia

    en.wikipedia.org/wiki/List_of_duplicating_processes

    Letterpress printing (via printing press) Gelatin methods (also indirect method) Hectograph. Collography, autocopyist. Chromograph, Copygraph, Polygraph. Flexography. Spirit duplicator (also Rexograph, Ditto machine, Banda machine, or Roneo) Lithographic processes. Transfer lithography.

  8. Computer number format - Wikipedia

    en.wikipedia.org/wiki/Computer_number_format

    Computer number format. A computer number format is the internal representation of numeric values in digital device hardware and software, such as in programmable computers and calculators. [1] Numerical values are stored as groupings of bits, such as bytes and words. The encoding between numerical values and bit patterns is chosen for ...

  9. List of Java bytecode instructions - Wikipedia

    en.wikipedia.org/wiki/List_of_Java_bytecode...

    This is a list of the instructions that make up the Java bytecode, an abstract machine language that is ultimately executed by the Java virtual machine. [1] The Java bytecode is generated from languages running on the Java Platform, most notably the Java programming language. Note that any referenced "value" refers to a 32-bit int as per the ...