Informatica
Life cycle of a computer system.
For good maintenance is necessary to know the life cycle of a computer system . The life cycle of a computer system is the set of phases that passes since created until it is destroyed. The main phases of the life cycle of a computer system are:
Construction or installation : in this phase the computer system is created where functionality is created and installed.
Tecnico informatico
Operation : The phase in which the computer system is operating . This phase should take into account aspects such as system maintenance, adjustment, and extension .
Destruction: You uninstall the computer system, including recycling and storage.
2 Levels of maintenance of software systems
In maintaining a computer system takes place at three levels: hardware , software and information.
2.1 Hardware Maintenance Level
It takes into account the state of the equipment and system peripherals .
Failures at this level are given in the form of failures which can be due to wear of the materials or accidents. The amount of damage directly affects the behavior of the system , since in many cases can affect a substantial part of it , getting to disable it temporarily or permanently. In business the impact of a fault involves as little loss of work time for an employee. But there are cases where monetary loss and image .
The tasks performed at this level of maintenance are :
Cleaning the hardware devices .
Control operation of equipment stress conditions (voltage , temperature, etc. )
Replacement or repacaciГіn of components that work in disrepair
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