That is the simple definition of MIS that generally sums up what a Management Information System is, and what it should do. However, its role and impact on the smooth operation of a company can never be overemphasized. That is the reason why every successful company makes use of these systems in one way or another. The reason why Management Information Systems are very important in the day to day operation of companies is because these systems work with people, organizations, technology and relationships among the people and organizations affecting the company.
The LCD consists of several thin layers that polarize the light passing through them. The polarization of one layer, containing long thin molecules called liquid crystals, can be controlled electronically at each pixel, blocking varying amounts of the light to make a pixel lighter or darker.
Other types of flat panel technology exist such as plasma displays but LCDs are most commonly used in computers, especially laptops. Older LCDs had slow response times and low contrast, but active matrix LCD screens have a transparent thin film transistor TFT controlling each pixel, so response, contrast, and viewing angle are much improved.
Flat panel displays are much lighter and less bulky than CRT monitors, and they consume much less power. They have been more expensive than CRTs in the past, but the price gap is narrowing. You will see many more flat panels in the future.
As with CRTs, the display size of a flat panel is expressed in inches, and the resolution is the number of pixels horizontally and vertically on the display. Ink Jet Printer Flat panel display LCD For hardcopy printed output, you need some kind of printer attached to your computer or available over a network.
The most common type of printer for home systems is the color ink jet printer. These printers form the image on the page by spraying tiny droplets of ink from the print head. The printer needs several colors of ink cyan, yellow, magenta, and black to make color images.
Some photo-quality ink jet printers have more colors of ink. Ink jet printers are inexpensive, but the cost of consumables ink cartridges and special paper make them costly to operate in the long run for many purposes.
Laser Printer Inkjet Printer A laser printer produces good quality images by the same technology that photocopiers use. A drum coated with photosensitive material is charged, then an image is written onto it by a laser or LEDs which makes those areas lose the charge.
The drum then rolls through toner tiny plastic particles of pigment that are attracted to the charged areas of the drum. The toner is then deposited onto the paper, and then fused into the paper with heat. Most laser printers are monochrome one color only, usually blackbut more expensive laser printers with multiple color toner cartridges can produce color output.
Laser printers are faster than ink jet printers. Their speed is rated in pages per minute ppm. Other Printers Laser Printer Multi-function printers are available that not only operate as a computer printer, but also include the hardware needed to be a scanner, photocopier, and FAX machine as well.
Dot matrix printers use small electromagnetically activated pins in the print head, and an inked ribbon, to produce images by impact.
These printers are slow and noisy, and are not commonly used for personal computers anymore but they can print multi-layer forms, which neither ink jet or laser printers can.
Sound Output Computers also produce sound output, ranging from simple beeps alerting the user, to impressive game sound effects, to concert quality music.Apr 29, · physical equipment used for input, processing, and output activities in an information system.
It consist of the following computers of various sizes and shape (including mobile handheld devices) various input, output and storage devices and telecommunication devices that link computers together.
S The Input or Output Circuit has failed S Leakage current can be a problem when connecting field devices to an I/O point. False input signals can be generated when the leakage current of an output device is great enough to turn on the connected Maintenance and Troubleshooting.
A storage device is any computing hardware that is used for storing, porting and extracting data files and objects.
It can hold and store information both temporarily and permanently, and can be internal or external to a computer, server or any similar computing device. Input, Processing, Output, Feedback • Input – Gathering and capturing raw data • Management information systems – Organized collection of people, procedures, software, databases, and devices Fundamentals of Information Systems, Fifth Edition 42 Organizations and .
The hardware design consists of a description of the computers, storage devices, input/output devices and possibly networking devices required for the desired system.
Software consists of the programs that run on the hardware. Start studying MIS Chapter 3: Hardware: Input, Processing, Output, and Storage Devices. Learn vocabulary, terms, and more with flashcards, games, and other study tools.