Information Systems case study

Information Systems Platforms2(a) Briefly outline the purpose and major functions of a data processor operating transcription. ? An operating system is a set of programs that controls the staple operation of acomputer. It must be in storage in the first place any early(a) processing is done. ? Some operating systems take: Microsoft DOS, Microsoft Windows (various versions much(prenominal)(prenominal) as XP, Vista), mackintosh OS ? by orc dangerous apple tree Computers, UNIX & vitamin A; LinuxThe three major functions of an operating system-Allocation and AssignmentThe operating system:-allocates resources to the jobs awaiting execution. -provides locations in primary memory for dataand programs. -controls the input and output pulls much(prenominal) as printers, terminals, and telecommunication links. -Scheduling-The operating system coordinates the scheduling of fix in various aras of the computer. -Different parts of different jobs can be worked on at the same time. -Moni toringThe operating system-monitors the activities of the computer system-keeps chase after(prenominal) of each computer jobMay keep track of-who is using the system,-what programs contract been propel-any unauthorized attempts to access the system2(b) Outline the differences between the different forms of accessorial storage doodads and discuss the relative advantages of each type of thingumajig?The most common secondary storage technologies ar:-? magnetised disk- secondary storage medium in which data are stored using magnetized spots on a sturdy or floppy disk? optical disk- Use optical maser technology to store high densities of data on such things as CDs and DVDs. Advantages of an optical disc is that it runs a caboodle sprightly than an optical disc and can store a good deal to a greater extent information. ? flash memory - power not holler out for to maintain information stored; RAM-like semiconductor device; fast run down times (less than RAM) & more shock impedance than HDD. Advantages of th! is device is that they can hold a lot more memory than an optical disc and is only a the skinny of its size. If you motivation to get a full essay, order it on our website: OrderEssay.net

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