Technology / Computer Systems In Organizations

Computer Systems In Organizations

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Autor:  anton  19 October 2010
Tags:  Computer,  Systems,  Organizations
Words: 1354   |   Pages: 6
Views: 378

What are important considerations for an organization to dispose of old computer equipment? What methods would work best for the organization in which you are working or have worked?

When an organization disposes of computer equipment it has to make sure that the data has been destroyed, that it is not affecting the environment, and it has to look at the cost of disposal as part of the cost of owning such equipment. For most enterprises, overwriting each disk sector four times should be enough to destroy all the data. To dispose of the equipment in an environmentally safe way, the best approach is to investigate how your disposal vendor handles environmental compliance and what certifications it has for handling hazardous materials.

The organization that I work for uses the equipment, even if it is considered obsolete, until it stops working completely. Once that happens, the equipment is stashed in a warehouse, where it remains for years and years. I believe that it would be a better idea to retire the equipment when it is technically obsolete, wipe out all the data, and donate the equipment to the employees. There are still many families in this country that cannot afford a computer, new or old. In addition, in this organization in particular there are many Dominican employees, who are extremely poor and their children could definitely use a computer for their schoolwork.

Why is it recommended to establish a formal evaluation criterion when considering the purchase of hardware for the organization? Are any of the criteria from the wireless laptop article applicable to any other types of hardware to be purchased for your organization?

Organizations have to establish an evaluation of criterion when purchasing hardware because organizations need to purchase the hardware components for their computer system that will be effective, efficient, and well suited to the work that they do. The users of the computers need to communicate their needs to the information systems professionals who are working on developing this criteria so that together they can combine ones knowledge of computer systems with the other’s knowledge of the business, in order to establish what the company needs, and what needs may arise in the future.

In the wireless laptop article, the laptops are evaluated in terms of integrated wireless, integrated optical drives and weight. These criteria could also be used to evaluate the some of the wireless equipment that is being purchased in my organization for the use of the top executives, like PDA’s and BlackBerry’s. The article also includes a table that compares the laptops in terms of in terms of portability, connectivity, battery, display, performance, warranty, etc., which are also important to consider when purchasing the type of portable devices that my organization has recently started to acquire.

Accuracy of Data Input

The accuracy of data input is important to an organization because it makes a huge difference in terms of time and resources spent. Inaccurate data can lead to errors, which can result in many hours of work to be able to correct them. This translates into time and money that the organization would lose. In addition, depending on the type of work the organization does, accuracy of data input may mean the difference between putting a safe product on the market, or facing fines and lawsuits later on if the product was unsafe and caused damages to the consumers. This is particularly so in the case of pharmaceuticals and other health-related products and services.

Methods of Data Input

The following are the methods of data input that I believe would be best for each of the following situations:

1. Printed questionnaires: For printed questionnaires, the best input method would be the optical data reader, which can convert handwritten or typed documents into digital data. These are used in surveys and the census with sufficient accuracy.

2. Telephone survey: For a telephone survey it would be a good idea to use voice recognition systems, which can recognize human speech, that way a person can simply articulate the answer and the system will collect the data.

3. Bank checks: For bank checks, the best input method would be magnetic ink recognition devices, which both people and computers can read. This speeds up the process of data collection and secures the accuracy of the data.

4. Retail Tags: The best input method for retail tags are point of sale (POS) devices, which compute the total charges, including tax. This secures that the cashier will not charge the wrong price for an article.

5. Long documents: For long documents the best input devices are the keyboard and mouse of a PC. It is a good idea to use an ergonomic design keyboard like Microsoft’s split keyboard.

Convenience and Quality of Output

Convenience and quality of output is important because it is what gets the information to person who needs it. Output in one department of an organization usually becomes the input of another department; therefore, the quality of the output device is just as important as the quality of the input device.

Methods of Data Output

The following are the methods of data output that I believe would be best for each of the following situations:

1. Hand held computer: The best output method for a hand held computer is the liquid crystal display monitor (LCD). There are two types, the passive matrix, which is dimmer and slower, and the active matrix, which is faster but can increase weight. It depends on the user, if he wants a faster but heavier monitor or a slower but lighter one.

2. Color photograph: For color photographs the best output device is a high-resolution computer color printer like a 600-dpi (dots-per-inch) printer.

3. Resumes and Memorandums: For resumes and memorandums, too, the best output device is a computer printer, but it need not be a color printer and does not have to have such high resolution as it would with a photograph.

4. Statistical report and company annual report: For these, a printer or plotter can be used. A plotter would be good if the reports include drawings, schematics, or if the use of transparencies is required.

Storage Devices

1. Hard Disks: In my experience, data is stored in the hard disk when it has to be accessed frequently and quickly. Documents that have to be used on a daily basis are saved to the computer’s hard disk.

2. Floppy disks: Floppy disks are used to store small documents that need to be transported from one place to another, or from one computer to another when there is no connection between the two computers

3. RAM: As I understand it, RAM is the memory that is being used as we type a document. This memory can be disrupted if there is a power outage, and the data can be lost. Once we save a document, the information is saved in another storage device and a power outage will not disrupt it.

4. CD-ROM: A compact disk read-only memory (CD-ROM) is a disk where data, once recorded cannot be modified. This can be useful to store large amounts of information (about 500 times the capacity of a 1.4-MB floppy disk). My experience in my organization has been that the CD-ROM use is limited because the information cannot be modified. We mostly use if for storage of photographs.

5. Tape: Magnetic tapes are often used as back up for disk drives in case of disasters. Magnetic tapes are less expensive than disk storage but the access to the data is slower.

Speed of a computer

The greater the RAM, the faster a computer will be, but this will also depend on the hard disk and the clock speed. The more MHz the faster the more cycles it can do per second, and therefore, the faster the computer will be. The amount of data on the hard disk can also affect the speed of a computer. For example: When 60% of the hard disk is full, the computer starts getting slower.

In terms of CD-Rom and floppy disks, accessing the data on a CD-Rom is always slower than accessing data stored in the RAM and the hard disk, but faster than accessing information on a floppy disk.

References

Stair, R.M, & Reynolds, G.W. (2003). Fundamentals of Information Systems (2nd edition).

Boston, Massachusetts, Course Technology



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