What Is The Difference Between ERP And Enterprise System?

Enterprise system and Enterprise Resource Planning System terms are similar but there is difference between an enterprise system and an ERP system. An ES or enterprise system is a large scale system which includes packages like ERP and CRM. ERP is a subset of Enterprise System or it can be said that ES is a superset of ERP. It contains a variety of solutions. ES contains applications and packaged solutions which can be directly used in an enterprise. On the other hand ERP system is the automation of the business processes and the solutions are in the form of modules which are designed according to the client’s requirements.

The functions are customized according to the client’s business environment. Enterprise system does not include architecture of other solutions whereas an ERP implementation automates systems using technical aspects. ERP system includes architectures and databases and is client server architecture. The system is server based therefore the consultant needs to be aware of the technical aspect too.

Another difference between an ES and an ERP system is that the ERP is aimed at improving the functionalities of the organization whereas the ES helps to improve the overall maintenance and accuracy. It provides for better solutions and aids in decision making. ES is difficult to implement compared to Enterprise resource planning and even the timeframe needed for implementation maybe more. The overall impact is high but so are the risks involved. If the ES is not implemented in the right manner, it can cause business failure and if implemented properly it can increase the efficiency and profits of the business organization. It is normally required when there is a big drawback in the current procedures and methodologies in the organization and need to be corrected. The company going in for enterprise system needs to be careful while choosing the software and the vendors due to the risk of failure involved.

The difference between an enterprise system and an ERP system is that ERP is mostly used for medium scale companies to big companies and ES is restricted to the big companies. There are many complex functions involved in big companies which cannot be provided solutions for alone by ERP. The role of ERP is restricted when compared to enterprise system because it does not include customer relationship or vendor management.

These applications are needed when the business process is complex and on a big scale. Therefore bigger organizations need to go with ES instead of enterprise resource planning alone. ERP is also an important system to streamline the internal processes but it does not provide for taking care of the external processes. Enterprise system takes care of the end to end business process of organization since it involves other applications also like SCM and CRM. There is quite a lot of difference between an enterprise system and an ERP and it depends on the company whether it wants to go with an ES to streamline the entire process starting from supplying, production and customer or whether he wants to go with an ERP system to streamline the internal process.

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Clinic Management Software: Benefits of Clinic Software

Clinic management software is a web-based program which helps clinic owners manage their operations. It is already widely used in clinics in many regions of the world especially in the American continents, Europe, and Australia.

Here is a list of the many benefits of clinic management software.

1. It helps clinic owners simplify their business and helps them manage one clinic or a huge group of clinics.

2. It keeps and updates patients’ demographics like residence, gender, age, ethnicity, and diagnosis of patients.

3. It keeps and updates patients’ records like lungs chart, heart chart, kidney chart, weight and height charts, nutritional date, respiratory system chart and others.

4. It can print out prescriptions, patient records, billings, certificates, and others. It can also give information about patients’ prescription, medicine available, and the formulation of the medicine.

5. It completes receptions in an automated and systematized way.

6. It manages accounting needs and maintains the inventory.

7. It completes billing transactions.

8. It checks account balances.

5. It schedules multiple appointments.

6. It can send out multiple email reminders.

7. It allows patients to confirm appointment in real time with the use of a mobile phone or a computer.

8. It allows practitioners an easy and quick access to their schedule and patients’ record anytime.

9. It includes reporting tools which could quickly present, print out, or send out reports like patient visits, patients referred to other doctors, patients referred by other doctors, list of fee collection, and daily profit report.

10. It can multitask and designed for quick and easy usage which consequently lessens the stress of clinic owners and clinic employees.

11. It saves business owners a significant sum of money since clinic management software does not require expensive servers or IT support group.

12. It allows clinic owners maximize billable time and spend more time in taking care of their patients since almost all administrative procedures are supported by the software including the daily backing up of everyday reports.

13. It also allows clinic owners to spend more time in making their business grow.

14. Clinic management software general has security features like password facility to validate users, entry validation, data secrecy feature, and data access that is user defined.

Business establishments like clinics need to cope up with the fast advancement in technology nowadays. Otherwise, they will be left behind since most business enterprises are already using such software.

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10 Top Reasons Why I Have to Upgrade My Computer

The rate at which technology is improving is very fast and in the time you get comfortable with the computer hardware you have bought, several new and improved models appear in the market. While some people prefer to keep their computers state of the art, most of us have a 'If it is not broken, do not fix it' attitude when it comes to upgrading or replacing our computers.

This is a strategy that could prove expensive in the long run. It is always better to upgrade your computer on a regular basis, especially if you have had it for over 2-3 years. Even if your computer has had a large trouble-free existence, you really need to consider periodic upgrades and here are the reasons why you must dos so:

1. Increase in Processing Speed ​​- This is one place where you really get to notice an improvement in performance. If you are upgrading from a Celeron 433MHz processor to a Pentium 4 1.6GHz, you would really notice the difference in performance!

2. Faster Memory Access – Improvements in CPU speed are typically accommodated by improvements in the speed at which data transfer occurs between the CPU and RAM. This is another area that provides an improvement in performance.

3. Size and Capacity improvements – Technology drives a reduction in component size coupled with an increase in storage capacity. This means that a RAM card or hard disk of the similar size as the older ones in your computer could have double the capacity!

4. Software Compatibility – Many of the new software packages you may wish to use in order to improve your productivity or entertainment experience may not function well on you old computer. It is better to upgrade your computer to enjoy the benefits of new software fully.

5. Obsolescence of Hardware – As your hardware gets older; Getting a replacement will get more difficult once manufacturers start phasing out the production. With improvement in technology, the older hardware becomes cheaper initially and becomes expensive as supply dries up.

6. Technical Support Issues – Many manufacturers stop providing technical support for older components as they cease production. The older your computer gets, the harder it is to find help in fixing it when it malfunctions.

7. Development of New Hardware – New hardware products appear in the market frequently that revolutionize your computer experience and are based on newly developed technology. The chances of your old computer supporting new devices are very low.

8. Faster Devices – Your old computer may not be in a position to accommodate the speed at which the new devices communicate.

9. New, Fast Communication Protocols – You may not be able to implement new or faster communication protocols in your old computer because the hardware is unable to support them.

10. Operating System and File Format – Your old hardware may not be able to run newer operating systems and some of the file formats may not be supported.

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How to Repair DBF Files by Using DBF Recovery Software

As a computer user you must have heard about a DBF file or some of you have used it. DBF is a database file format used by various database software programs, such as: Visual FoxPro, Clipper, dbFast, CodeBase, MultiBase, dbXL, Arago and similar database programs. A database file is a collection of data organized in a tabular form. A DBF file can be easily opened, edited and saved by any of these database programs therefore, this file format is very popular among computer users.

The most common use of a database file is to store a large amount of data and information. The file is widely used in almost every sector, such as: corporate and educational sectors to store the data and information. It has become an essential file format for an individual and an organization.

Where this file format is very useful for users on the other hand, it may create some serious problems as well. Sometimes a DBF file may become inaccessible or invalid due to corruption. DBF is not immune to corruption; in fact, this file format is prone to corruption due to its large size and complex file structure. It might be easily corrupted due to various reasons, such as: virus attacks, malfunction in database application, hard disk drive failure, software collision, unexpected cancellation of DBF, human errors and many more. These are some common reasons which can play an important role in database file corruption.

While opening a corrupt DBF file you may receive some error messages something like these:

  • “File .dbf does not exist”.
  • “The fields in table did not match the entries in the database”.
  • “Access to table disabled due to previous error”.
  • “Database file appears corrupt: Page is of wrong type.
  • “Corrupt table”/ “index header”.
  • “Filename .dbf has become corrupted”.

These are some common errors which frequently take place at the time of corruption. For example: you are working on your DBF file, everything is fine. But all of a sudden your database application (Visual FoxPro or other) starts hanging. You have no other option other than restarting the system. But when you restart your system and open the same DBF file, in which you were working earlier, it does not open or you get an error message saying the file is corrupted or damaged. This must be very frustrating situation for any user since all the hard work will go into the vain. All the data and information stored in the file might be lost forever. You have to re-create the file, which might not be possible in some cases.

In such critical state a BKF file will definitely help you. If you have backed up the database file (which is now corrupted), then you can easily restore it from the BKF file. But sometimes the BKF file may not be available or corrupted or invalid. In this situation you can use third-party DBF recovery software. This is one of the most efficient and effective solutions to fix corrupt DBF files. The DBF recovery software is designed to repair an extremely corrupted DBF file and to restore maximum data from it. It is highly capable to resolve or fix all the errors from corrupted DBF files. The software supports all popular database applications, such as: dBase III, dBase IV, dBase V, Visual FoxPro, Clipper, dBFast, CodeBase, MultiBase, dBXL and Arago. The best feature of the software is its self-describing user interface. It requires no technical knowledge or skills to use this software. Any tech savvy and a novice user can easily and comfortably use this software to repair corrupted DBF files. The DBF Recovery software is available with free demo version. Users can download the demo version before buying the full software. This helps users to examine the features and performance.

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Texas Two Step Strategy – Everything You Need to Know

The Texas Two Step lottery is a great example of a game that is both strategic and fun. The state lottery is an excellent arena for you to shell out your extra dollars while learning about alternative lotto mechanics. In the state of Texas, the Texas Two Step is considered to be the most popular form of lottery. The game beings when an individual is asked to pick four number from and in between 1 to 35. Like most lotto types, this also has a bonus ball number, which can increase your chances of winning. The grand price for this unique game does not go below two hundred thousand dollars so long as you make five matches. If you are also quite hesitant to pick your own number, the quick pick system also applies to the Texas Two Step lottery. A multi-draw feature also allows you to bet for ten advance drawings at once by simply making a distinguishable mark in the designated ticket boxes. Single plays cost only US$1 each and can reflect winnings up to a hundred thousand dollars.

Most lottery systems base on luck as foundation for winning. Unfortunately, even with the convenience of quick picks and other strategies, chances of winning are still small. One effective way to increase the chances of gaining back positive results from your chosen number is by adhering to the Wheeling Systems. Generally, wheeling systems do not guarantee an automatic win after placing your number picks in the Texas Two Step. However, the mechanism gives you more chances of bringing home multiple tier prizes as opposed to you simply randomly selecting the number, or relying on quick picks. The odds of winning the Texas Two Step prize are statistically ranging from 1 to 32. The overall ratio of victory can be quite unsatisfactory if played with mere dependence on luck. Although you can win $5 for simply matching the bonus ball number, naturally, anyone would still want to vie for the grand prize.

There are also a handful of lotto software that provide good combination numbers for players. Most people confirm the effectiveness of most online programs in tracking the best numeral combinations for lottery. You may program these to suit your needs and according to the type of lottery that you participate in. For Texas Two Step, it is much easier to use a software to calculate possible combinations as it has lesser selections or numbers compared to most lotto games.

For serious lotto players, individuals simply log onto the website and place their bets randomly. Sites also offer a few tips and strategies on how to best employ their gaming techniques. You may be able to view advices on when is the best time to place your bets and how to purchase your tickets quickly. Other websites also present lottery news, which is also an effective way to keep track of your bets. Bear in mind that in order for a player to achieve positive results while playing lotto, the correct strategy and technique must put in place so as to lead you to triumph and victory.

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Examples Of Spyware And What They Are

Spyware is a general term used to describe software that performs certain behaviors such as advertising, collecting personal information, or changing the configuration of your computer, generally without appropriately obtaining your consent first.

Spyware is often associated with software that displays advertisements (called adware) or software that tracks personal or sensitive information.

That does not mean all software that provides ads or tracks your online activities is bad. For example, you might sign up for a free music service, but you “pay” for the service by agreeing to receive targeted ads. If you understand the terms and agree to them, you may have decided that it is a fair tradeoff. You might also agree to let the company track your online activities to determine which ads to show you.

Other kinds of Spyware make changes to your computer that can be annoying and can cause your computer slow down or crash.

These programs can change your Web browsers home page or search page, or add additional components to your browser you don’t need or want. These programs also make it very difficult for you to change your settings back to the way you originally had them.

The key in all cases is whether or not you (or someone who uses your computer) understand what the software will do and have agreed to install the software on your computer.

There are a number of ways Spyware or other unwanted software can get on your computer. A common trick is to covertly install the software during the installation of other software you want such as a music or video file sharing program.

Any software that covertly gathers user information through the user’s Internet connection without his or her knowledge, usually for advertising purposes. Spyware applications are typically bundled as a hidden component of freeware or shareware programs that can be downloaded from the Internet; however, it should be noted that the majority of shareware and freeware applications do not come with SpyWare. Once installed, the Spyware monitors user activity on the Internet and transmits that information in the background to someone else. Spyware can also gather information about e-mail addresses and even passwords and credit card numbers

Aside from the questions of ethics and privacy, SpyWare steals from the user by using the computer’s memory resources and also by eating bandwidth as it sends information back to the spy ware’s home base via the user’s Internet connection. Because SpyWare is using memory and system resources, the applications running in the background can lead to system crashes or general system instability.

Because SpyWare exists as independent executable programs, they have the ability to monitor keystrokes, scan files on the hard drive, snoop other applications, such as chat programs or word processors, install other SpyWare programs, read cookies, change the default home page on the Web browser, consistently relaying this information back to the SpyWare author who will either use it for advertising/marketing purposes or sell the information to another party.

Licensing agreements that accompany software downloads sometimes warn the user that a SpyWare program will be installed along with the requested software, but the licensing agreements may not always be read completely because the notice of a SpyWare installation is often couched in obtuse, hard-to-read legal disclaimers.

Examples of SpyWare

These common SpyWare programs illustrate the diversity of behaviors found in these attacks. Note that as with computer viruses, researchers give names to SpyWare programs which may not be used by their creators. Programs may be grouped into “families” based not on shared program code, but on common behaviors, or by “following the money” of apparent financial or business connections. For instance, a number of the SpyWare programs distributed by Claria are collectively known as “Gator”. Likewise, programs which are frequently installed together may be described as parts of the same SpyWare package, even if they function separately.

o CoolWebSearch, a group of programs, takes advantage of Internet Explorer vulnerabilities. The package directs traffic to advertisements on Web sites including coolwebsearch.com. It displays pop-up ads, rewrites search engine results, and alters the infected computer’s hosts file to direct DNS lookups to these sites.

o Internet Optimizer, also known as DyFuCa, redirects Internet Explorer error pages to advertising. When users follow a broken link or enter an erroneous URL, they see a page of advertisements. However, because password-protected Web sites (HTTP Basic authentication) use the same mechanism as HTTP errors, Internet Optimizer makes it impossible for the user to access password-protected sites.

o Zango (formerly 180 Solutions) transmits detailed information to advertisers about the Web sites which users visit. It also alters HTTP requests for affiliate advertisements linked from a Web site, so that the advertisements make unearned profit for the 180 Solutions Company. It opens pop-up ads that cover over the Web sites of competing companies.

o HuntBar, aka WinTools or Adware,WebSearch was installed by an ActiveX drive-by download at affiliate Web sites, or by advertisements displayed by other SpyWare programs-an example of how SpyWare can install more SpyWare. These programs add toolbars to IE, track aggregate browsing behavior, redirect affiliate references, and display advertisements.

oZlob Trojan or just Zlob, Downloads itself to your computer via ActiveX codec and reports information back to Control Server. Some information can be as your search history, the Websites you visited, and even Key Strokes.

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How to Repair DBF Files by Using DBF Recovery Software

As a computer user you must have heard about a DBF file or some of you have used it. DBF is a database file format used by various database software programs, such as: Visual FoxPro, Clipper, dbFast, CodeBase, MultiBase, dbXL, Arago and similar database programs. A database file is a collection of data organized in a tabular form. A DBF file can be easily opened, edited and saved by any of these database programs therefore, this file format is very popular among computer users.

The most common use of a database file is to store a large amount of data and information. The file is widely used in almost every sector, such as: corporate and educational sectors to store the data and information. It has become an essential file format for an individual and an organization.

Where this file format is very useful for users on the other hand, it may create some serious problems as well. Sometimes a DBF file may become inaccessible or invalid due to corruption. DBF is not immune to corruption; in fact, this file format is prone to corruption due to its large size and complex file structure. It might be easily corrupted due to various reasons, such as: virus attacks, malfunction in database application, hard disk drive failure, software collision, unexpected cancellation of DBF, human errors and many more. These are some common reasons which can play an important role in database file corruption.

While opening a corrupt DBF file you may receive some error messages something like these:

  • “File .dbf does not exist”.
  • “The fields in table did not match the entries in the database”.
  • “Access to table disabled due to previous error”.
  • “Database file appears corrupt: Page is of wrong type.
  • “Corrupt table”/ “index header”.
  • “Filename .dbf has become corrupted”.

These are some common errors which frequently take place at the time of corruption. For example: you are working on your DBF file, everything is fine. But all of a sudden your database application (Visual FoxPro or other) starts hanging. You have no other option other than restarting the system. But when you restart your system and open the same DBF file, in which you were working earlier, it does not open or you get an error message saying the file is corrupted or damaged. This must be very frustrating situation for any user since all the hard work will go into the vain. All the data and information stored in the file might be lost forever. You have to re-create the file, which might not be possible in some cases.

In such critical state a BKF file will definitely help you. If you have backed up the database file (which is now corrupted), then you can easily restore it from the BKF file. But sometimes the BKF file may not be available or corrupted or invalid. In this situation you can use third-party DBF recovery software. This is one of the most efficient and effective solutions to fix corrupt DBF files. The DBF recovery software is designed to repair an extremely corrupted DBF file and to restore maximum data from it. It is highly capable to resolve or fix all the errors from corrupted DBF files. The software supports all popular database applications, such as: dBase III, dBase IV, dBase V, Visual FoxPro, Clipper, dBFast, CodeBase, MultiBase, dBXL and Arago. The best feature of the software is its self-describing user interface. It requires no technical knowledge or skills to use this software. Any tech savvy and a novice user can easily and comfortably use this software to repair corrupted DBF files. The DBF Recovery software is available with free demo version. Users can download the demo version before buying the full software. This helps users to examine the features and performance.

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Why Do We Need Software Engineering?

To understand the necessity for software engineering, we must pause briefly to look back at the recent history of computing. This history will help us to understand the problems that started to become obvious in the late sixties and early seventies, and the solutions that have led to the creation of the field of software engineering. These problems were referred to by some as “The software Crisis,” so named for the symptoms of the problem. The situation might also been called “The Complexity Barrier,” so named for the primary cause of the problems. Some refer to the software crisis in the past tense. The crisis is far from over, but thanks to the development of many new techniques that are now included under the title of software engineering, we have made and are continuing to make progress.

In the early days of computing the primary concern was with building or acquiring the hardware. Software was almost expected to take care of itself. The consensus held that “hardware” is “hard” to change, while “software” is “soft,” or easy to change. According, most people in the industry carefully planned hardware development but gave considerably less forethought to the software. If the software didn’t work, they believed, it would be easy enough to change it until it did work. In that case, why make the effort to plan?

The cost of software amounted to such a small fraction of the cost of the hardware that no one considered it very important to manage its development. Everyone, however, saw the importance of producing programs that were efficient and ran fast because this saved time on the expensive hardware. People time was assumed to save machine time. Making the people process efficient received little priority.

This approach proved satisfactory in the early days of computing, when the software was simple. However, as computing matured, programs became more complex and projects grew larger whereas programs had since been routinely specified, written, operated, and maintained all by the same person, programs began to be developed by teams of programmers to meet someone else’s expectations.

Individual effort gave way to team effort. Communication and coordination which once went on within the head of one person had to occur between the heads of many persons, making the whole process very much more complicated. As a result, communication, management, planning and documentation became critical.

Consider this analogy: a carpenter might work alone to build a simple house for himself or herself without more than a general concept of a plan. He or she could work things out or make adjustments as the work progressed. That’s how early programs were written. But if the home is more elaborate, or if it is built for someone else, the carpenter has to plan more carefully how the house is to be built. Plans need to be reviewed with the future owner before construction starts. And if the house is to be built by many carpenters, the whole project certainly has to be planned before work starts so that as one carpenter builds one part of the house, another is not building the other side of a different house. Scheduling becomes a key element so that cement contractors pour the basement walls before the carpenters start the framing. As the house becomes more complex and more people’s work has to be coordinated, blueprints and management plans are required.

As programs became more complex, the early methods used to make blueprints (flowcharts) were no longer satisfactory to represent this greater complexity. And thus it became difficult for one person who needed a program written to convey to another person, the programmer, just what was wanted, or for programmers to convey to each other what they were doing. In fact, without better methods of representation it became difficult for even one programmer to keep track of what he or she is doing.

The times required to write programs and their costs began to exceed to all estimates. It was not unusual for systems to cost more than twice what had been estimated and to take weeks, months or years longer than expected to complete. The systems turned over to the client frequently did not work correctly because the money or time had run out before the programs could be made to work as originally intended. Or the program was so complex that every attempt to fix a problem produced more problems than it fixed. As clients finally saw what they were getting, they often changed their minds about what they wanted. At least one very large military software systems project costing several hundred million dollars was abandoned because it could never be made to work properly.

The quality of programs also became a big concern. As computers and their programs were used for more vital tasks, like monitoring life support equipment, program quality took on new meaning. Since we had increased our dependency on computers and in many cases could no longer get along without them, we discovered how important it is that they work correctly.

Making a change within a complex program turned out to be very expensive. Often even to get the program to do something slightly different was so hard that it was easier to throw out the old program and start over. This, of course, was costly. Part of the evolution in the software engineering approach was learning to develop systems that are built well enough the first time so that simple changes can be made easily.

At the same time, hardware was growing ever less expensive. Tubes were replaced by transistors and transistors were replaced by integrated circuits until micro computers costing less than three thousand dollars have become several million dollars. As an indication of how fast change was occurring, the cost of a given amount of computing decreases by one half every two years. Given this realignment, the times and costs to develop the software were no longer so small, compared to the hardware, that they could be ignored.

As the cost of hardware plummeted, software continued to be written by humans, whose wages were rising. The savings from productivity improvements in software development from the use of assemblers, compilers, and data base management systems did not proceed as rapidly as the savings in hardware costs. Indeed, today software costs not only can no longer be ignored, they have become larger than the hardware costs. Some current developments, such as nonprocedural (fourth generation) languages and the use of artificial intelligence (fifth generation), show promise of increasing software development productivity, but we are only beginning to see their potential.

Another problem was that in the past programs were often before it was fully understood what the program needed to do. Once the program had been written, the client began to express dissatisfaction. And if the client is dissatisfied, ultimately the producer, too, was unhappy. As time went by software developers learned to lay out with paper and pencil exactly what they intended to do before starting. Then they could review the plans with the client to see if they met the client’s expectations. It is simpler and less expensive to make changes to this paper-and-pencil version than to make them after the system has been built. Using good planning makes it less likely that changes will have to be made once the program is finished.

Unfortunately, until several years ago no good method of representation existed to describe satisfactorily systems as complex as those that are being developed today. The only good representation of what the product will look like was the finished product itself. Developers could not show clients what they were planning. And clients could not see whether what the software was what they wanted until it was finally built. Then it was too expensive to change.

Again, consider the analogy of building construction. An architect can draw a floor plan. The client can usually gain some understanding of what the architect has planned and give feed back as to whether it is appropriate. Floor plans are reasonably easy for the layperson to understand because most people are familiar with the drawings representing geometrical objects. The architect and the client share common concepts about space and geometry. But the software engineer must represent for the client a system involving logic and information processing. Since they do not already have a language of common concepts, the software engineer must teach a new language to the client before they can communicate.

Moreover, it is important that this language be simple so it can be learned quickly.

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How To Spot a Fake Jimmy Choo Handbag

  • Label: The Jimmy Choo label is generally a lilac colored metal face fastened to a leather backing, and stitched to the interior of the handbag. Many fakes have the incorrect shade of lilac, either going to light or too dark in the purple spectrum. The label should read in either gold or silver. However, even if the colors are correct, the label may still not be in the clear. Because it often times the font details that are singular to authentic Jimmy Choo that many of fake handbags get wrong, and this is one of the best places to look when trying to identify a phony J. Choo.
  • Font: Always check out the "H" in Choo. On an authentic handbag, the horizontal cross-bar in the H should not be in the center of the letter, the way it is intended to be with regards to most standard fonts. Instead, the Jimmy Choo H should have the cross-bar closer to the top, about 75-80% of the way up the H, if measuring from the bottom of the letter. If the handbag has the correct H, move to the letters "O" in Choo. On an authentic handbag, the O will have a slightly bent look. This means that the "O" will appear as if someone snapped down on the top of the letter, giving the O an oval shape rather than a perfect circle. Spotting a fake Jimmy Choo handbag often times comes down to the subtleties in the font.
  • Hardware: Any screws located on handbag hardware will always be a flat head (-) screw. Jimmy Choo will never use any Philips head (+) screws in any of their handbags.
  • Dustbag: Fake Jimmy Choo handbags will often be accompanied by a dustbag that is an incorrect color or format. An authentic dustbag should have the logo: "JIMMY CHOO," with "LONDON" centered perfectly under the logo. The font should be an embossed gray, while the dustbag itself will be the famous lilac color. Many fakes will have incorrect font colors on the dustbag, as well as the incorrect dustbag color ie the wrong shades of purple etc. Good luck and safe shopping!
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History and Components of a Modern Mainframe Computer

Mainframe computers are critical for some of the largest corporations in the world. Each mainframe has more than one modern processor, RAM ranging from a few megabytes to multiple-score gigabytes, and disk space and other storage beyond anything on a microcomputer. A mainframe can control multiple tasks and serve thousands of users every second without downtime.

The chief difference between mainframes and other computing systems is the level of processing that takes place. Mainframes are also different in terms of data bandwidth, organization, reliability, and control. Big organizations-banking, healthcare, insurance, and telecom companies, etc.-use mainframes for processing critical commercial data.

In this article, we discuss the evolution of mainframe computers and their components.

History of mainframe computers

IBM developed a critical part of mainframe computing, the Automatic Sequenced Controlled Calculator (ASCC) for arithmetic operations, in 1944. From the late 1950s through the 1970s, several companies manufactured mainframes: IBM, Burroughs, RCA, NCR, General Electric, and Sperry Rand, for example. Since then, System / 390 by IBM is the only kind of mainframe in use. It evolved from IBM's System / 360 in 1960.

An Early mainframe occupied a huge space. New technologies have drastically reduced the size and cost of the hardware. A current-generation mainframe can fit in a small closet.

Components of a modern mainframe computer

Like a PC, a mainframe has many components for processing data: operating system, motherboard or main board, processor, controllers, storage devices, and channels.

• Motherboard: The motherboard of a mainframe computer consists of a printed circuit that allows CPU, RAM, and other hardware components to function together through a concept called "Bus architecture". The motherboard has device slots for input cards and cable interfaces for various external devices. Where PC motherboards use 32- or 64-bit buses, mainframes use 128-bit buses. General instructions regarding the internal architecture help the motherboard connect to the other devices and retrieve data using binary computation.

• Processor: A CPU acts as the central processing point in mainframe architecture and includes an Arithmetic Logic Unit (ALU) for performing arithmetic calculations. It also works as a controller for the bus architecture and handles traffic and data requests. The processing power of mainframes is much higher compared to PCs, so that they can handle huge amounts of data.

• Storage devices: Storage devices are for entering, retrieving, storing, and recording data. Many are external devices, such as hard drives, tape drives, and punch card readers, all connected to terminals of the mainframe and controlled by the CPU. Their capacity for data storage can be hundred or even thousands of times that of a PC.

• Communication controllers: Communication controllers allow remote computers to access a mainframe. With the help of networks, LAN or WAN, communication controllers establish connections with various devices, perform data transmission over communication channels, and keep track of users at terminals.

• Channels: The "channels" are the cables used to connect the CPU and the main storage to other parts of the system and make sure that data is moved in a systematic way without losing its integrity.

Modern mainframes have advanced features such as expanded service management capabilities, cross-platform integration facilities, etc. And so are suitable for critical data center operations. The cost of maintaining modern mainframes is much less compared to older models.

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