These can include keyboards, mice, scanners, cameras, microphones and the like. An ATM is a good example of an input device. It’s the way in which we transfer information and instructions to the computer. Without them, a computer would be useless, as it would not receive any instructions from the outside world. According to the text, “Computer systems provide output to decision makers at all levels of an organization to solve a business problem or capitalize on a competitive opportunity.
In addition, output from one computer system can be used as input into another computer system within the same information system. ” (Stair, Reynolds, 2003).
The two most common output devices that we think of are, of course, monitors and printers, which allow the user immediate access to and use of the information. Other output devices may be music devices (such as an Ipod or other Mp3 player) or direct digital input into another computer system or electronic device.
Communications devices are essential as well to the modern computer, as communication, both within an organization and with the outside world is a major reason computers are so prevalent today. Modems; both dial-up and broadband are good examples. They enable the computer to communicate with other computers and with people outside their immediate environment. Primary and secondary storage consists mainly of memory and permanent storage. Primary storage (or memory) comes in 2 basics forms: RAM (Random Access Memory) and ROM (Read Only Memory).
The Term Paper on Management Information System in Marketing Information System
Market information system may be defined as factual knowledge about the action, antecedents or consequences of social actors outside or inside the firm and the environment in which they operate. Social actors are as consumers, completions, employee, institutions, suppliers, wholesalers, retailers, govt. bodies and NGO’s. The environment actors are physical, technological, economic, legal and ...
It takes much less time for the computer to access memory, but the storage is either temporary or doesn’t have same read/write capability of secondary storage. Secondary storage can consist of tape storage, disks (either magnetic or optical), or memory cards. Access to the information on secondary storage is a lot slower than access to information in memory, but it is more permanent, less expensive, and usually has a much greater capacity. The CPU or “Central Processing Unit” is the brain of the computer.
It consists of 3 components: the Arithmetic Logic Unit (or ALU), the Control Unit, and register storage. The ALU performs all mathematical or logic functions. The control unit decodes all the instructions given to it, and the register storage basically stores instructions before they are taken by the control unit and results after they are processed before they are put into memory. All of these components work together to make our tasks, whether they be personal or business, quicker and more efficient.
Input is put into an input device which is sent to the CPU, which stores results and resources it might need in memory. Information can then be sent to an output device such as a monitor, over a communication device such as a modem, or stored in secondary storage. Without computers, the business world of today would be much different. References Stair, R. , Reynolds, G. (2003) Fundamentals of Information Systems (2e).
Boston, MA: Course Technology, page 49 Stair, R. , Reynolds, G. (2003) Fundamentals of Information Systems (2e).
Boston, MA: Course Technology, page 61-62
