Information+Processes

=Information Processes=

Definition: ** a set of information processes requiring participants, data/information, & info. technology. It is created for a purpose, operates in a particular environment. It performs the 7 info. processes. § info technology includes software & hardware § participants are direct users of an info. system. A person using the screen at an ATM is a direct user at the moment. § A person using a clerk within a bank would be an indirect user at the moment. Use of ATM, eftpos, library cataloguing system. RTA licensing, Netmeeting, web ordering, SMS, voice mail, video mobile phone
 * Concept: ** Information System **
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** Concept: ** Information Process - Collecting
 data formats may be numbers, images, text, forms audio, video § input devices: pointing devices, scanners keyboard digital still cameras / video cameras, microphones, optical recognition devices (OCR). § operating system is used to interface with the hard ware collection device & the user Flatbed scanner may be used to digitise an image. The operating system connects to the scanner.
 * Definition: ** involves deciding what to collect, locating it & collecting it.
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** Concept: ** Information Process - Organising
** Definition: ** involves the modification of data by arranging, representing & formatting data. ** Summary Points: ** § digitising is the process of translating data into binary digits that can be stored & used by a computer. § each type of data must be represented digitally text: ASCII; images: bit-map (jpg, gif) audio: sampling § application software organises data. Paint / draw, multimedia, word processing, desktop publishing, spreadsheet, database, slide shows. Powerpoint may use text, images, video & audio. Each datatype is processed differently.
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** Concept: ** Information Process - Analysing
Definition: ** involves the interpretation of data, transforming it into information. ** Summary Points: ** § information is processed raw data, it has been ordered and given meaning to people. § searching, sorting, modelling (simulations) ‘what if’ predictions, charts allows analysing ** Example: ** Counting the total number of students who do Biology in Year 12, sorting in alphabetical order

** Concept: ** Information Process – Storing / Retrieving
** Definition: ** involves saving data & information for use (storing) and obtaining data and information that has been previously saved (retrieving) § writing and reading data to hard disk § direct access: access to data like a CD sequential access: access to data like a casessette music tape. Used in backup magnetic tapes § floppy disk, usb flash drive, optical disks, zip disks § hard disk storage is in gigabytes generally. ** Example: ** A word document can be saved to an Apple machine, it is formatted as an Apple file, saved to the hard drive. The file is accessed directly. The entire hard drive can be backedup to magnetic tape using sequential access
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** Concept: ** Information Process - processing
§ speed of the cpu determines how quickly data can be processed. Current speed 3 gigahertz (clock speed) §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> images take a lot longer to process as compared to text due to the amount of memory / storage an image data type takes ** Example: ** Editing of a video takes up a tremendous amount of processing power to edit as well as storage of raw video footage. The final video is compressed using less storage but needs to be unencrypted when run.
 * Definition: ** involves the manipulation of data & information.
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** Concept: ** Information Process – Transmitting / Receiving
** Summary Points: ** §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> parallel transfer: like a multilane highway serial transfer: like a single lane highway §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> includes the use of networks and modem. §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> at least always transmits to a printer to produce a hard copy. When one prints: from within information system. When one sends an attachment via email: it is transmitted between information systems.
 * Definition: ** involves the transfer of data & information from within & between information systems.
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** Concept: ** Information Process - Displaying
** Definition: ** involves the output from an information system to meet a purpose. ** Summary Points: ** §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> includes monitors, printers, speakers & plotters §<span style="font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"> each application software displays data a. Word processing draft shown on a monitor. b. Edited music listened to on speakers.
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