PC

selective information INPUT METHODS. As al land iny discussed in chapter one, thither atomic number 18 several(prenominal) ways of inputting info into the computer. These trick generally be split into In call for and Direct Methods. 1. DIRECT METHODS. We shake al convergey come across some common direct methods of entropy input, for example: Bar Code Reading Magnetic squeeze Character Recognition (MICR) visual Character Recognition (OCR) optic Mark Recognition (OMR) 2. INDIRECT METHODS. All the above methods toilet read information directly from the documents (cheques, meter reading forms, three-fold survival questionnaire, etc.), i.e., there is no need to type in entropy from these documents. However, direct methods have only limited use, in many another(prenominal) cases data is still being typed into the computer. Just to source a few examples: When you go to the hospital for the first time, you allow for be asked to adjoin in a form with data such(prenominal) as name, address, age, sex, date of birth, etc. Data from these forms be input via a keyboard by an operator. If you atomic number 18 the member of a video-club, you energy have been asked to fill in a rank and bear down form. If your library uses a computerised system, data from these forms have to be typed into a computer. The same occurs when you apply for a job.

You will have to fill in an application form with your personal details, qualifications and experiences. These data are in turn entered into a computer system. In more than or less systems, data- origination clerks enter data and the data are kept on magnetised d! isk or magnetic tape. This is why we sometimes call this method of data entry key-to-disk or key-to-tape. 3. ERRORS DURING DATA ENTRY There are loads of possibilities of errors sequence inputting data, especially while using a keyboard, the data may be read wrongly by the data entry clerk she may read it correctly alone input it wrongly some values may be overlooked others may be addedIf you want to get a full essay, order it on our website: OrderCustomPaper.com

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