ADVANTAGES OF USING THE INTERNET

There are many advantages of using the Internet, such as : Global Audience Content published on the World Wide Web is immediately available to a global audience of users. This makes the World Wide Web a very cost-effective medium to publish information. Reaching more than 190 countries. Operates 24 hours, 7  days  a week You don't need to wait until resources are available to conduct business. From a consumer's perspective as well as a provider's business can be consummated at any time. The fact that the Internet is operational at all times makes it the most efficient business machine to date. Relatively Inexpensive It is relatively inexpensive to publish information on the Internet. At a fraction of the cost to publish information by traditional methods, various organizations and individuals can now distribute information to millions of users. It costs only a few thousand dollars to establish an Internet presence and publish content on the Internet. Product Advertising You can use the World Wide Web to advertise various products. Before purchasing a product, customers will be able to look up various product specification sheets and find out additional information. You can use the multimedia capabilities of the World Wide Web to make available not only various product specification sheets but also audio files, images, and even video clips of products in action. The beauty of the Web is that it allows customers to explore products in as much detail as they desire. If the client just wants a general overview, he or she can look at the advertising information. For those wanting more in depth information, you can provide white papers and product descriptions for download. The Web allows a business to provide timely information, you can simply place the information on the Web page and it is available immediately for your customers. Distribute Product Catalogs The World Wide Web is a very effective medium for distributing product catalogs. In the old days, putting together a product catalog  used to be very costly in terms of time and money needed to publish and distribute it. The World Wide Web changes all this by allowing content developers to put together a sales catalog and make it available to  millions of users immediately. Furthermore,  unlike printed product catalogs that are usually updated around once a month, product catalogs on the World Wide Web can be updated as needed to respond to  various changing market conditions. Online Surveys Traditional methods of performing surveys are often relatively slow and expensive compared to online surveys conducted on the Internet. For example, in order to fill out various needs of customers or what they would like to see in a future product, it's often necessary to compile a list of  address and mail a questionnaire to many customers. The success of such an attempt is not always guaranteed and can be very costly in terms of mailing the questionnaires and entering responses to a databases and analyzing it. On the other hand, you can use the World Wide Web to automate the whole process. For example, you can set up a CGI script to conduct online surveys. Results of such a survey can be automatically updated to a database. This database can then be  used to keep a pulse on various opinions and needs of customers. Announcements With the World Wide Web, you can distribute various announcements to millions of users in a timely manner. Because there is virtually no time lag from the time it takes to publish information to making the information available to users, the Web is an ideal medium to publicize announcements. As more people discover the virtues of the Web and get connected to the Internet, the Web will become the medium of choice for many organizations and individuals to publicize various announcements.

Provide Technical Support You can also use Web site to provide technical support to users. Because Web pages can be updated immediately with  new information, various technical support literature can be immediately modified in light of new findings and developments. This can be accomplished without having to distribute changes to all users affected by any changes using traditional mediums of information distribution, which are often quite costly compared to the World Wide Web. Create Online Discussion Forums By using applications such as WebBoard, it's possible to set up online discussion forums on the Web. Obtain Customer Feedback The interactive nature of the World Wide Web  is ideal for obtaining customer feedback. You can easily set up a CGI script to obtain customer feedback about a product or service. Because customer feedback submitted by customers can be read immediately, it's possible to respond to various customer concerns in a timely manner, increasing customer satisfaction and quality of customer service. Immediate Distribution of Information When information is added to a Web site, it's immediately available for browsing by millions of Internet users. The World Wide Web is an ideal medium of information distribution because it takes away the time lag associated with publishing content and actually making it available to users Easy Integration with Internal Information Systems Internet information systems deployed on the Internet  can be easily integrated with internal information systems managed with office productivity applications such as Microsoft Office. Powerful Content Publishing Tools A new breed of Internet aware applications will start emerging in software stores by the time you read this. These applications will enable users to develop content for the World Wide Web by simply saving as an HTML file. In addition to software developers making existing applications Internet aware, various new, powerful, and easy-to use Internet content publishing applications are also being developed. These applications will make the task of publishing content on the Internet even easier. Most of these applications are developed for  Windows users. Multimedia The capability to incorporate multimedia into Web pages is a major advantage of using World Wide Web to publish information. For example, many Web sites use sounds and video clips to make the content easier and more interesting to browse. Formatting Capabilities Content published on the World Wide Web can be richly formatted by using various HTML tags and graphic formats. The capability to do this is a major reason for the success of the World Wide Web. In addition to using HTML tags and various multimedia formats in Web pages, various interactive controls can also be added to a web page. This capability allows Web  site content developers to create "active" Web sites. For example, before a user sends some information to a Web server for processing, a VBScript or JavaScript subroutine can be used to verify  information typed in by the user. Various formatting capabilities,  along with technologies such as Java and VBScript, make the World Wide Web a richly interactive medium that you can use to distribute information to millions of users.

References :  Terry Bernstein, Anish  B. Bhimani, Eugene Schultz, Carol A. Siegel, Internet Security for Business, Wiley Computer Publishing, John Wiley &  Sons Inc, 1996  Sanjaya Hettihewa, Windows NT 4, Web Development, Sams net, Indianapolis, First Edition, 1996

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ចំលើយ

១​​​​.​    ម៉ាស៊ីនបូកលេខដំបូងបង្កើតឡើងដោយលោក Blaisen Pascal ក្នុងឆ្នាំ1642 ឈ្មោះម៉ាស៊ីន Mecchanical Adding Machine​ ។

២.     គេអះអាងថាពិភពលោកមានការផ្លាស់ប្តូរ​ នៅពេលដែល ក្រុមហ៊ុន IBM​ បានចាប់កំណើត    ឡើង គឺ​ នៅខែ កក្កដា ឆ្នាំ ១៩៨២។

៣.Computer System​​ មានស្តង់ដាផ្សំឡើងដោយ ៖

CPU , Primary Storage ,Secondary Storage , Input device ,Output device and Communication device .

ចំលើយ

1. ម៉ាស៊ីនបូកលេខដំបូងបង្កើតឡើងដោយលោក Blaisen Pascal ក្នុងឆ្នាំ 1642 ឈ្មោះម៉ាស៊ីន Mechanical  Adding Machine ។
2. គេអះអាងថាពិភពលោកមានការផ្លាស់ប្ដូរនៅពេលដែល ក្រុមហ៊ុន IBM បានចាប់កំណើឡើង គឺ នៅខែ កក្កដា ឆ្នាំ 1982។​
4. ពន្យល់អត្ថន័យនៃពាក្យ ៖

• Input Device គឺមាន Keyboard  Mouse បំលែងទិន្នន័យ និងដាក់បញ្ជារអោយទៅជាទម្រង់ អេឡិចត្រូនិចសម្រាប់ដាក់បញ្វូលទៅក្នុងកុំព្យូទ័រ។
• Output Device ដូចជា Printer video Display Terminal បំលែងទិន្នន័យអេឡិចត្រូនិចដែលបង្កើត​ ដោយប្រព័ន្ធកុំព្យូទ័រហើយបង្ហញពួកវាក្នុងទំរង់មួយដែលអ្នកប្រើប្រាស់អាចយល់បាន។
• Primary Storage គឺរក្សាទុកនូវទិន្នន័យ និងដាក់បញ្ជាក់កម្មវិធីនៅពេលកំពុងដំណើរការ។
• Secondary Storage គឺរក្សាទិន្នន័យ និងលកម្មវិធីនៅពេលដែលពួកគេមិនត្រូវបានគេកំពុងប្រើ ប្រាស់ក្នុងដំណើរការ។
•  Communication device ផ្ដល់អោយនូវទំនាក់ទំនងរវាងកុំព្យូទ័រ និងបណ្ដាញទំនាក់ទំនង។

3. ប្រព័ន្ធកុំព្យូទ័រផ្សំឡើងដោយ៖​​  Input Device​​​ Output Device Primary Storage Secondary Storage CPU and Communication device .

ចំលើយ

1. ម៉ាស៊ីនបូកលេខដំបូងបង្កើតដោយលោក  Blaise pascal ក្នុង ឆ្នាំ ១៦៤២​ដែលមានឈ្មោះថា  mechanical adding machine។
2. គេអះអាងថាពិភពលោកមានការផ្លាស់ប្តូរខែកក្កដា ឆ្នាំ ១៩៨២  និស្សិតកំពុងសិក្សានៅសាកលវិទ្យាល័យបានកែច្នៃកុំព្យួទ័រផលិតកម្មទ្រងទ្រាយធំចាប់ផ្តើមនៅឆ្នាំ១៩៧៩ចុងឆ្នាំ១៩៨១ មានការលក់កុំព្យួទ័រផ្ទល់ខ្លួន ។
3. ប្រព័ន្ធកុំព្យួទ័រមានធាតុផ្សំ ​​​​​​​​​  CPU Primary Storage , Secondary Storage ,Input Device,  Output  Device and Communication device។

មេរៀនទី៤ ការគ្រប់គ្រងធនធានសម្ភារះ Hardware

១​​​.និយមន័យ

កុំព្យួទ័រគឺជាប្រព័ន្ធនៃ Input, processing,  Output,  Storage and Control Component

២ .ប្រវត្តិសង្ខេបបរបស់កុំព្យួទ័រ(​Computer Hardware)

ពេលបច្ចុប្បន្នមានការផ្លាស់ប្តូរបច្ចេកវិទ្យាឆាប់រហ័សក្នុងទ្រង់ទ្រាយធំ។អតីតកាល គឺ មិនអាចទៅរួច​ទេដើម្បី កោតសរសើរ ការចូលចំនែកយ៉ាងពេញលេញ យើងត្រូវយលដឹងពីប្រវត្តិ​និងការវិវត្តន៍របស់វា។

ប្រវត្តិខ្លីៗពីការអភិវឌ្ឍន៍កុំព្យួទ័រវាស្មុគស្មាញវាអាចទៅរួច​  ទាក់ទងនិង ចំនួនលេខ​មនុស្សប្រើប្រាស់ ម្រាមដៃ ម្រាមជើង​ ដើម្បីបង្ហាញពីសកម្មភាព ផ្នែកគណិតវិទ្យា ជា មូលដ្ឋាន បន្ទាប់មកទៀតវត្ថុដំណាង​ ឲខ្ទង់លេខ មានននសំបក ងាវ ឆ្អឹងសត្វ ត្រូវបានគេប្រើ ក្នុងការរាប់ចំនួន។

ពាក្យថា Calculateត្រូវបានគេបំបែក ពីពាក្យ Calculus  ដែលជាពាក្យ ឡាតាំសម្គាល់ឲថ្មតូចៗ មាន គ្រួស រឺ អង្កាំ បង្កើត ជាក្បាច់ រាប់ លេខ (abacus)   វាជាឧបករណ៍បង្កើតដោយមនុស្សអាច  យកជាការបាន។

      Blaise Pascal ជាគណិតវិទូជនជាតិបារាំងឆ្នាំ ១៦៤២ បានបង្កើតម៉ាស៊ីនបូកលេខមាន ឈ្មោះថា mechanical adding ម៉ាស៊ីននេះដូចគោលការប្រើប្រាស់ abacus ប៉ុន្តែវាខុសត្រង់ ការប្រើដៃរាបចំនួន ផ្ទុយទៅវិញ Pascal គេប្រើប្រាស់កងរង្វិលដើម្បី រំកិលខ្ទង់ ប្រើមកដល់​ បច្ចុប្បន្ន។

     បច្ចេកវិទ្យាដែលកែច្នៃដោយបុរសជនជាតិ បារាំងម្នាក់ ឈ្មោះ Joseph Jacquard មានការ រីកចំរើន ឧស្សាហកម្ម ផលិតកម្ម ពេសពេញទ្វីបអ៊ឺរុប។

       ដល់សតវត្តទី១៩ លោក Charles Babbage បានរកឃើញម៉ាស៊ីនរក្សាតំលៃលេខនៅក្នុង memory​  របស់វា។គេហៅវាថា ម៉ាស៊ីនវិភាគ តែមិនត្រូវបានគេបង្កើតទេ ខ្វះ អេឡិចត្រូនិច។លោក Herman

      Hollerith គាត់ចាប់អារម្មណ៍ គំនិត Punched Card ក្នុងការកត្រា data នៅចុងសតវត្សឆ្នាំ១៨៨០។ ក្រោយមកបានជោគជ័យ វាកាត់បន្ថយពេលវាលា គេប្រើវាគណនា លទ្ធិផលរក ចំនូលឲក្រុមហ៊ុន។

នៅឆ្នាំ១៩១១ក្រុមហ៊ុនបានបញ្ជូលគ្នាជាមួយគូប្រគួតប្រជែង បង្កើត International Business  machine(IBM)។

 

 

ក្រុមហ៊ុនអាកាសចរណ៍ ដែលល្បីល្បាញនៅលើពិភពលោក

The World's Top Airlines - ranking 41 to 60

The results shown below show the final Global Airline Rankings in the World Airline Awards.

2012 2011 41 easyJet 38 The World's Best Airlines   Ranking 1-20   Ranking 21-40   Ranking 41-60   Ranking 61-80   Ranking 81-100 42 TACA Airlines 37 43 Westjet 50 44 China Eastern Airlines 58 45 Hong Kong Airlines 54 46 Jetstar Asia 45 47 Vietnam Airlines 48 48 Air France 55 49 Alaska Airlines 69 50 Virgin Atlantic 47 51 Southwest Airlines 67 52 jetBlue Airways 31 53 Air Astana 83 54 Azul Airlines 76 55 Indigo Airlines 64 56 Avianca 53 57 Delta Air Lines 62 58 Jet Airways 43 59 bmi British Midland 60 60 American Eagle Airlines 56

   View the Top 80 Airlines

អត្ថប្រយោជ៏របស់​ E-commerce និងE-Business

 1  អត្ថប្រយោជ៏នៃ E-commerce

• វាផ្តល់ភាពងាយស្រួលដល់ការធ្វើអាជីវកម្ម និងមានតំលៃថោក
• វាផ្តល់ភាពងាយស្រួលដល់ប្រព័ន្ឋបចេ្ចកវិទ្យា រឺបណ្តាញ IT​
• ថ្តល់ព៏តមានដល់អតិថិជនមួយ ២៤​ម៉ោងក្នុងមួយថ្ងែ
• ជួយកាត់បន្ថយថ្លៃដើមនិងពេលវេលាចែកចាយសម្រាប់ទំនិញមួយចំនួនជាពិសេសទំនិញទំនើ

2     អត្ថប្រយោជន៏នៃ E-Business