The four basic functions of a computer system are input, processing, output and storage. These four functions are collectively known as the IPO+S model and are used to teach the fundamentals of information systems.Know More
Input collectively refers to all the resources used in creating a program. This usually consists of a programmer entering code into a computer with a keyboard.
Processing collectively refers to all of the internal functions the computer uses to control and make sense of information. The most basic components are a control unit, an arithmetic logic unit and random access memory for temporary storage. This represents a very simple model of a computer. Modern computers will add other processing components such as a multitasking operating system.
Output is the display of information to the user. This can occur through the monitor, by way of audio through the speakers, or on paper via a printer. Output can also be written to a storage device like a CD-ROM or flash drive.
Storage consists of any means by which data can be permanently saved. Some examples include internal and external hard drives, floppy disks, CDs, DVDs and memory sticks. This component was not always present in the IPO model as it is not strictly necessary for a basic computer to function, but has been added as permanent physical memory has become a standard part of all modern computers.Learn more about Computer Help
To clean a slow running computer in six steps, clear up used space on the storage drive and eliminate software that's causing the computer to slow down. Deal with start-up programs and Internet files before cleaning registries and de-fragmenting the drive.Full Answer >
The information processing cycle refers to the order of events that go into processing information, including input, processing, storage and output. Input consists of acquiring, entering and validating the data, while output consists of interactive queries and the running of reports. Some definitions include a fifth stage, which consists of deleting or archiving data that one does not plan to use.Full Answer >
The four components that all computers have in common are input, output, storage and processing, according to Intel's educational website. Input devices accept information into a computer, while output displays the information in a readable format. Storage involves items like discs or memory sticks that save data and the processor executes computer programming instructions.Full Answer >
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