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Flashcards do conjunto (6)
- 1Functions of Operating System - Multi-tasking / Process Management - Most systems commonly have several programs loaded into memory at the same time.Functions of Operating System
- User Interface - Operating systems need to provide a means of communicating with them. The user interface is the way in which users interact with computer hardware. - 2Functions of Operating System - Memory management - When a program is running it must be in the computer's main memory (RAM). The main memory has a finite sizeFunctions of Operating System
- Peripheral Management - Peripherals are any computer hardware components that are not part of the CPU i.e. Input, Output or Storage devices - 3Functions of Operating System System - Operating systems usually allow the authentication of users. This normally involves users having user ids and password.Off the Shelf Software - Sometimes called 'shrink-wrapped' software. Commonly used applications are the everyday packages we use in school, e.g. Word-Processing, Spreadsheet or Email Software
- 4Custom Written Software - Is software commissioned / produced for a particular costumer. It is digested to meet their specific requirements and not available to the general public.Advantages
- Off the shelf - It is ready immediately. It should have been extensively tested. The price is know before purchase and is usually cheaper than custom software. - 5Disadvantages Off the shelf - It probably won't be exactly what the customer needs. Customization can be difficultAdvantages
Custom Written - The software is made to the customer preferences. The developer can be contacted to solve issues and they may provide training. - 6Disadvantages Custom Written - It may take a long time to develop. It may not have been extensively tested.hi
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- FlashCards sobre Sem título, criado por Alexander Stewar em 12-12-2014.
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- Alexander Stewar
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