Laborotoriya ish № 3. Bilimlarni namoyish etishning freymli
modeli.
Ishdan maqsad: Feymli modellarni oʻrgatish. Freymlar hosil qilish.
Qisqacha nazariy ma’lumotlar
Freym — bu qandaydir standart holat uchun mo'ljallangan ma'lumotlarni
deklarativ keltirilishidir. Freymlarni tarmoq ko'rinishida ko'rsatish mumkin. Unda
yuqori tabaqalar ularning ma'nosini namoyish etadi va har qanday sharoitda chin
qiymatga ega bo'ladi. Pastki tabaqa muayyan informatsiyaga ega bo'lgan slotlar
bilan to'ldiriladi. Freymlar nazariyasini, bilimlarni freymlar bilan tasvirlash
g’oyasini va «freym» termi-nini 1975 yilda M. Minski degan olim taklif kilgan.
«Freym» so’zi ingliz tilidan olingan bulib, ramka, deraza, reshyotka, ichki skelet
kabi mazmunlarda ishlatiladi. Freymlar nazariyasining moxiyati kuyidagicha.
Inson yangi xolatga tushib kolgan paytda, u uzining xotirasi-dagi freymlar deb
nomlanuvchi asosiy strukturami tuzi-lishiga murojaat kiladi. Ya’ni bunday xolatda
turli echimni qabul kilish uchun nimalar qilish kerakligini eslaydi.
Freym — bu oldin eslab kolingan bilimlarni tasvirlash birligi. Bu birlikning
detallari davr va talab takozosi bilan uzgarishi mumkin. Freym — ma’lu-motlar
tuzilishini ifodalaydi, uning yordamida, masa-lan, sizning xonangizdagi xolatni
tasvirlash mumkin. Xar bir freym xar xil axborotlar bilan tuldirilishi mumkin. Agar
okibat kutilgan natijani bermasa, bu ax-borot — kurilayotgan freymning kullanish
usullariga alokador bulishi mumkin. Freym kup jix,atdan uzining tuzilishiga kura
semantik tarmokka uxshash buladi. Freym — ierarxik tuzilgan, tugun va
munosabat (aloka) lar tarmog’idir.
<html>
<body>
<form name="myform">
<select name="tanlash">
<option value="1">kompyuter turlari
<option value="2">kompyuter modellari
<option value="3">Asosiy qurilmalar
<option value="4">Qo'shimcha qurilmalar
<option value="5">Ichki qurilmalar
</select>
<input type="button" value="OK" onclick="funk()">
</form>
<script language="JavaScript">
var n=document.myform.tanlash.value;
function funk()
{
if(myform.tanlash.value=="1")
{
document.write("<table border=1><tr bgcolor=red><td>Kompyuter
turlari</td><td>qiymati</td></tr>")
document.write("<tr><td>Noutbuk</td> <td>1000$</td></tr>")
document.write("<tr><td>Stol kompyuterlari</td>
<td>600$</td></tr></table>")
}
else if(myform.tanlash.value=="2")
{
document.write("<table border=1><tr bgcolor=red><td
colspan=2><h1>Kompyuter modellari</td></tr>")
document.write("<tr bgcolor=green><td><h2>SLOT</td>
<td><h2>Qiymati</td></tr>")
document.write("<tr><td><h2>HP</td> <td>600$</td></tr>")
document.write("<tr><td><h2>Magintosh</td> <td>660$</td></tr>")
document.write("<tr><td><h2>Acer</td> <td>540$</td></tr>")
document.write("<tr><td><h2>Samsung</td> <td>860$</td></tr>")
document.write("<tr><td><h2>Sony</td> <td>1600$</td></tr>")
document.write("<tr><td><h2>Apple</td> <td>3100$</td></tr>")
document.write("<tr><td><h2>LG</td> <td>900$</td></tr></table>")
}
else if(myform.tanlash.value=="3")
{
document.write("<table border=1><tr bgcolor=red><td>Asosiy
qurilmalar</td></tr>")
document.write("<tr><td>Tizimli blok</td> <td>400$</td></tr>")
document.write("<tr><td>Monitor</td> <td>200$</td></tr>")
document.write("<tr><td>Klaviatura</td> <td>60$</td></tr>")
document.write("<tr><td>Sichqoncha</td> <td>40$</td></tr></table>")
}
else if(myform.tanlash.value=="4")
{
document.write ("<table border=1><tr bgcolor=red><td>Qo'shimcha
qurilmalar</td></tr>")
document.write("<tr><td>Printer</td> <td>600$</td></tr>")
document.write("<tr><td>Skaner</td> <td>600$</td></tr>")
document.write("<tr><td>Proyektor</td> <td>600$</td></tr>")
document.write("<tr><td>Joystik</td> <td>600$</td></tr>")
document.write("<tr><td>Akustika jihozlari</td> <td>600$ </td></tr>
</table>")
}
else if(myform.tanlash.value=="5")
{
document.write("<table border=1><tr bgcolor=red><td>Ichki
qurilmalar</td></tr>")
document.write("<tr><td>Sistemali plata</td> <td>600$</td></tr>")
document.write("<tr><td>Vinchester</td> <td>600$</td></tr>")
document.write("<tr><td>Manba bloki</td> <td>600$</td></tr>")
document.write("<tr><td>DVD ROM</td> <td>600$</td></tr>")
document.write("<tr><td>Operativ xotira</td>
<td>600$</td></tr></table>")
}
}
</script>
</body>
</html>
Topshiriq
Ixtiyoriy predmet sohasini tanlang va ushbu mavzuda na’munaga o’xshash
kichik hajmdagi Freym hosil qiling.