<p><span id="result_box" lang="en"><span class="hps">កាលពីជិត ៤០ឆ្នាំមុន នៅថ្ងៃទី ០៣ ខែមេសា ឆ្នាំ១៩៧៣ ទូរស័ព្ទដំបូងគេបំផុតបានបង្ហាញរូបរាង<br />ឡើង ដែលបង្ហាញពីការរីកចំរើននៃវិស័យទូរគមនាគមន៍របស់ពិភពលោក និងជាបដិវត្តរបស់ឧប<br />ករណ៏ Mobile កាន់ដៃ។</span></span></p>
<p><span id="result_box" lang="en"><span class="hps"> Martin Cooper ពេលនោះបានធ្វើការនៅក្រុមហ៊ុន Motorola គឺជាមនុស្សដំបូងគេបានធ្វើការហៅ<br />ចេញ(Call) ពីឧបករណ៍ Mobile ដែលក្រុមហ៊ុនគាត់ជាអ្នកបង្កើតឡើង។ ជិត ៤០ឆ្នាំមុន ទូរស័ព្ទគឺ<br />ជាឧបករណ៍ Mobile មួយពិបាកក្នុងការប្រើប្រាស់ណាស់ ដោយកាលនោះទូរស័ព្ទមួយ មានទម្ងន់<br />ដល់ទៅ 1,15kg (ធ្ងន់ជាង Laptop MacBook Air 11" ទៅទៀត) និងមានកម្រាស់ជាង 25cm ។<br />បើប្រៀបធៀបមកពេលបច្ចុប្បន្ននេះ ស្មាតហ្វូនមួយមានកម្រាស់មិនដល់ 10mm, ផង ហើយប្រើ<br />ប្រាស់ chip quad core ដ៏ខ្លាំង និងមានកម្មវិធីប្រើប្រាស់ទំនើបៗជាច្រើនទៀតផង។</span></span></p>
<p><span id="result_box" lang="en"><span class="hps">សូមទស្សនារូបភាព បណ្តាទូរស័ព្ទកាលពីជិត ៤០ឆ្នាំមុន ខាងក្រោមនេះ ទាំងអស់គ្នាណា ៖</span></span></p>
<p><span lang="en"><span class="hps"><a class="thickbox" title="" href="/FileManager/Commons/2013/2/13/cellpics-37-13-02-2013--14-10-00.jpg"><img src="/FileManager/Articles/mce/2013/2/13/cellpics-37-13-02-2013--14-10-00.jpg" alt="" /></a><br /></span></span></p>
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<p><span id="result_box" lang="en"><span class="hps"><a class="thickbox" title="" href="/FileManager/Commons/2013/2/13/cellpics-0-13-02-2013--14-10-17.jpg"><img src="/FileManager/Articles/mce/2013/2/13/cellpics-0-13-02-2013--14-10-17.jpg" alt="" /></a></span></span></p>
<p><a class="thickbox" title="" href="/FileManager/Commons/2013/2/13/cellpics-3-13-02-2013--14-10-27.jpg"><img src="/FileManager/Articles/mce/2013/2/13/cellpics-3-13-02-2013--14-10-27.jpg" alt="" /></a><span id="result_box" lang="en"><span class="hps"><a class="thickbox" title="" href="/FileManager/Commons/2013/2/13/cellpics-0-13-02-2013--14-10-17.jpg"></a></span></span></p>
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<p style="text-align: right;">ដោយ៖ សិលា<br />ប្រភព៖ TTE<span id="result_box" lang="en"><span class="hps"><br /></span></span></p>