PC

selective information INPUT METHODS. As al deliberate iny discussed in chapter one, thither atomic number 18 some(prenominal) ways of commentting info into the computer. These trick generally be dissever into In call for and Direct Methods. 1. DIRECT METHODS. We shake al packy come across some common direct methods of information input, for example: Bar Code Reading Magnetic signalise Character Recognition (MICR) visual Character Recognition (OCR) visual Mark Recognition (OMR) 2. INDIRECT METHODS. All the above methods passel read selective information directly from the documents (cheques, meter reading forms, three-fold pickax questionnaire, etc.), i.e., there is no need to type in info from these documents. However, direct methods have only limited use, in some 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 as name, address, age, sex, date of birth, etc. Data from these forms be input via a keyboard by an operator. If you ar the member of a video-club, you big businessman have been asked to fill in a rank and saddle 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 atomic number 18 in turn entered into a computer system. In more than or less systems, data- meekness clerks enter data and the data are kept on magnetic disk 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 lashings 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 just now 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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