Karteikarten
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- 1Software and hardware components of an information systemdifference between hardware and software;
input, output and storage devices;
specialist hardware devices;
specialist software devices;
types of software;
user interfaces - 2Hardware components are the physical aspects of a computer system that can be touched. They include input devices, output devices, storage devices, processors, memory and the mother board.Software consists of code which has been written to run programs on a computer system. It can be used to control and run the hardware
- 3Lack of standardisationProblems caused by the lack of standardisation include:
-Compatibility
-applications with operating systems
-Documents _ importing issues
-hardware devices and motherboards
-hardware upgrades - 4-Cost to consumers -upgraded software -replacing hardware because of updated standards -non-universal hardware standards -Training costs-Restrictions
-software applications for a chosen operating system
-availability of hardware for motherboard connections
-non-universal hardware - 5-Communication -Files cannot be shared -Details can be corruptedOperating systems:
-Manages hardware
-Manages communication between -hardware and applications
-Typical operations:
responding to input, allocating processor time, allocating RAM, managing files, security - 6User interface: -Communication between user and computer -Usually graphical: Windows, Icons, Menus, Pointers -User controls objects on screen -Computer displays on screen -Computer makes soundsUtility software :
Utilities are software tools that complement the operating system in managing the smooth running of the computer system. > - 7-File compression utilities make files smaller so more can fit on a storage medium or to make data transmission quicker. -Defragmentation utilities reorganise data stored on disk so large data and program files are kept together rather than fragmented (spread out) across disk>This speeds up data access.
-Backup utilities make automatic backups of files and disks. - 8WIMP Characteristics: Memory intensive, graphical interface - use of pictures to represent objects, direct manipulation interface - cursor direction reflects hand movements, predefined list of options - can be pop-up/drop downWIMP Components:
windows, icons, menus, pointers - 9Specialist Hardware devices for physically disabled users:
- 10Specialist software devices for physically disabled users:
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- Beschreibung
- Karteikarten am Ohne Titel, erstellt von levic002 am 13/11/2014.
- Erstellt von
- levic002
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