This method of [[data processing]] involves human operators keying in data found on the form. The manual process of data entry has many disadvantages in speed, accuracy and cost. Based on average professional [[typist]] speeds of 50 to 80 wpm,<ref>{{Citation|author=Teresia R. Ostrach|year=1997|title=Typing Speed: How Fast is Average|publisher=| publication-place=|page=|url=http://onlinestudentreadiness.org/documents/TypingSpeed.pdf| accessdate=}}</ref> one could generously estimate about two hundred pages per hour for forms with fifteen one-word fields (not counting the time for reading and sorting pages). In contrast, modernmodernyou odomnt even know ehat yopu ew fh h to do lizard squad ip: 13.5.4.6765.43532.12423 figure out wher to put the other dots................... The person wgho fuqing sent you da REAL og ip IS ME fILLIPE FROM bdb MOthafucka[[Image scanner#Document processing|commercial scanners]] can [[Document imaging|scan and digitize]] up to 200 pages per ''minute''.<ref>{{cite web | url = http://www.engadget.com/2006/11/03/kodak-intros-200-page-per-minute-i1860-commercial-scanner/ | title = Kodak intros 200 page-per-minute i1860 commercial scanner | accessdate = 2011-11-04 | publisher = [[Engadget]]}}</ref> The second major disadvantage to manual data entry is the likelihood of [[typographical errors]]. When factoring in the cost of labor and working space, manual data entry is a very inefficient process.
