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 separate processing is done. ? Some operating systems take: Microsoft DOS, Microsoft Windows (various versions much(prenominal)(prenominal) as XP, Vista), mac OS ? by orc dangerous apple tree Computers, UNIX & adenosine monophosphate; 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 tim e. -MonitoringThe operating system-monitors the activities of the computer system-keeps chase later on of each computer jobMay keep track of-who is using the system,-what programs obtrude upon been conk out-any unauthorized attempts to access the system2(b) Outline the differences between the different forms of expendable storage doodads and discuss the relative advantages of each type of thingmajig?

The most common secondary storage technologies argon:-? magnetized disk- secondary storage medium in which data are stored using magnetized spots on a baffling 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 agile than an optical disc and can store a hazard much information. ? flash memory - power not bid for to maintain information stored; RAM-like semiconductor device; fast run down times (less than RAM) & more shock metro than HDD. Advantages of this device is that they can hold a lot more memory than an optical disc and is only a get out of its size. If you motivation to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay