Search In An Operating System
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Search In An Operating System
| Author: | Siham Ali Yahya Amer |
| Category: | Operating Systems [Edit] |
| Language: | Arabic |
| Pages: | 13 |
| File Size: | 387.67 KB |
| Extension: | |
| Creation Date: | 24 Jan 2013 |
| Rank: | 10,047 No 1 most popular |
| Short link: | Copy |
| More books like this book | |
Book Description
نظام التشغيل (بالإنجليزية: Operating System وتختصر إلى OS)
هو مجموعة من البرمجيات المسؤولة عن إدارة موارد "عتاد" وبرمجيات الحاسوب،ويمثل وسيط بين المستخدم وعتاد الحاسوب، ويمكننا القول انه مظلة لتشغيل برامج المستخدم، يقوم نظام التشغيل بالمهام الأساسية مثل إدارة وتخصيص مصادر الحاسوب (الذاكرة، القرص الصلب، الوصول للأجهزة الطرفية الملحقة..إلخ)، ترتيب أولوية التعامل مع الأوامر، التحكم في أجهزة الإدخال والإخراج، تسهيل الشبكات، وإدارة الملفات.
كما أن نظام الملفات يؤدي ثلاث وظائف أساسية هي :
١. تحديد المساحة الحرة و المستخدمة من إجمالي مساحة القرص الصلب .
٢. حفظ أو معرفة أسماء الأدلة و الملفات .
٣. معرفة أو تحديد الموقع الفيزيائي للملف على القرص الصلب .
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