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Chapter 2 : IT Components

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Chapter 2 : IT Components

  1. 1. CPD 2113 TECHNOLOGY IN ELT Chapter 2 COMPONENTS OF INFORMATION TECHNOLOGY MURNI SALINA B.Sc. Ed (TESL) UTM, Skudai M’sia
  2. 2. COMPONENTS OF INFORMATION TECHNOLOGY People Data Procedures Information System Hardware Software
  3. 3. An information system has five parts : 1. People  The most important part as they make end-users more productive.
  4. 4. An information system has five parts : 2. Procedures  Refer to rules or guidelines people follow when using software, hardware and data.  Documented in manuals written by computer specialists.  Provided by software/hardware manufacturers of the product.
  5. 5. An information system has five parts : 3. Software  Computer software is the term for programmes or sets of computer instructions.  Written in special computer language that enable a computer to accomplish a given task.  It consists of step-by-step instructions, which the computer can use to convert data into information.
  6. 6. An information system has five parts : 4.    Hardware Computer components that are physical, touchable pieces or equipment. It consists of the system unit, input/output, secondary storage and communication devices. 4 types of computers : 1. Supercomputers – the most powerful type of computers. 2. Mainframe – occupy specially wired, air-conditioned rooms. 3. Minicomputers – desk-sized machines used for specific purposes. 4. Microcomputers – include the desktop, notebook and personal digital assistant.
  7. 7. An information system has five parts : 5. Data  Raw, unprocessed facts including text, numbers, images and sounds.  Data describes something that is stored electronically in a file.  Examples : ◦ Document files created by word processors ◦ Worksheet files crated by spreadsheets ◦ Database file created by database management programmes ◦ Presentation files created by presentation graphics programmes

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