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Students' guide to information technology /
Students' Guide to Information Technology.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Oxford ; Boston :
Newnes,
[1993]
|
| Edición: | Second edition. |
| Colección: | Heinemann Newnes informatics series.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Students' Guide to Information Technology; Copyright Page; Table of Contents; Preface; Chapter 1. The information revolution; Scenario; What is information?; Four kinds of information; Information processing; What is information technology?; IT devices; The IT revolution; The impact of the IT revolution; IT and employment; Chapter 2. Computers; Scenario; What is a computer?; Computer hardware; Microprocessors; How a microprocessor handles information; Binary numbers; Microprocessors and logic; Arithmetic and logic gates; Logic circuits; Microprocessors and computers.
- Neural networksDigital signal processors; Processing speeds; Computer memory; Types of computer; The evolution of the personal computer; Chapter 3. Computer peripherals and applications; Scenario; Using a computer; Input devices; Storage devices; Output devices: monitors; Output devices: printers; The benefits of computers; The uses of computers; Chapter 4. Computer software; Scenario; The importance of software; What is software?; How software works; Programming languages; Software reliability; Program specification; Declarative languages; Object-oriented languages; System software.
- Operating systemsHow the operating system organizes the disk; Operating system commands; Operating environments; Windows; Using Windows; Other environments for PCs; Utilities; Application software; Features of application packages; Chapter 5. Technical convergence; Scenario; Technological convergence; Analogue and digital information; Audio and video systems; Technological convergence in audio systems; Technological convergence in video systems; Multimedia; Interactive video; Compact discs; Compact disc for multimedia applications; Data compression; Virtual reality systems.
- Chapter 6. CommunicationsScenario; What do we mean by communications?; How do electromagnetic communications work?; Technological convergence and communications; Fibre optics; The telecommunications problem; Carrier waves and modulation; Multiplexing; Modems; Communications systems and networks; Inter-computer communications; Local area networks; Circuit-switched networks; Packet-switched networks; The Open Systems Interconnection (OSI) reference model; Broadcast networks; Telecommunications services; On-line databases and bulletin boards; Electronic data interchange.
- Chapter 7. Information systemsScenario; Introduction to information systems; The systems project life cycle; Systems analysis; The essential model; Reasons for using graphical modelling tools; The statement of purpose; The context diagram; The event list; Dataflow diagrams; The entity-relationship diagram; The data dictionary; Process specifications; Designing and implementing the system; Chapter 8. IT in the office; Scenario; Office automation; The benefits and implications of office automation; Office automation systems; Office automation and the paperless office; Database software.