برنامه نویسی | Programming | United States America (US)

Create: 2025-03-31 Update: 2025-06-30 18:30:01

✔️ پاسخ سوال: گزینه شماره 2

زمانی که ما به یک صفحه احتیاج داریم و فضای رم پر هست یکی از استراتژی های ما جایگزنی صفحه هستش، در این استراتژی:
🔢اگر قابی خالی نبود ما یک الگوریتم جایگزینی صفحه رو انتخاب کرده و یک قاب قربانی (Vicitm Frame) رو انتخاب می‌کنیم.
🔢قاب قربانی رو به حافظه ثانویه می‌نویسیم (در صورت نیاز) و صفحه و جدول‌های قاب رو اصلاح می‌کنیم.

❌ چرا گزینه 1 غلط هست؟ خب ببینید ما اگر اون فرآیند و پراسسمون یک دیتایی رو بخواد باید بیاریمش توی حافطه پس رد کردن درخواست کاملا بی معنی هستش اینجا، و آوردن دیتا به رم یک باید هست.

❌ چرا گزینه 3 غلط هست؟ خب ببینید مثلا فکر کنید شما دارید روی یه داکیومنت ورد کار می کنید که پایان نامتون هست و تغییرات زیادی دادید، حالا به مرورگر نیاز پیدا کردید و اون رو باز می‌کنید و یه دفعه ورد بسته می‌شه و تغییرات شما می‌پره، این براتون مطلوبه؟ طبیعتا نه، پس سیستم عامل نمی‌تونه بیاد یک فرآیند رو به این دلیل ببنده.

❌ چرا گزینه 4 غلط هست؟ خب ببینید مقدار حافظه رم شما فیکس هست و به استیک های رمتون محدوده، یعنی شما نمی‌تونید به صورت فیزیکی زمانی که کامپیوتر روشن هست رم اضافه بکنید.

📖 کتاب مبانی سیستم عامل، ادیشن 10

➖➖➖➖➖➖➖➖➖

📝 Farivar Tabatabaei

‎#سیستم_عامل
#OS

🔵 @Azad_Developers

برنامه نویسی | Programming

💡کوئیز سیستم عامل

#آسان ❓ بیاید تصور کنیم حافظه RAM پر هستش و هیچ اسلاتی برای قرار دادن صفحه مورد نیاز از دیسک توی RAM وجود نداره، و ما به اون داده‌ها نیاز داریم. 🤔 خب به نظرتون سیستم‌عامل برای برآورده کردن این درخواست چه کاری انجام می‌ده؟ #Quiz #OS

➖

📝 Farivar Tabatabaei

‎#سیستم_عامل
#OS

🔵

@Azad_Developers

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How to Create a Custom Theme in Telegram for Desktop and Mobile

Like most instant messaging apps, Telegram helps facilitate communication. Its increasing popularity among social media users can be largely attributed to its enhanced privacy and encryption features. Also, its support for large group chat features has seen the app’s user count grow to 700 million monthly active users. The app has introduced several personalization features to maintain the interests of its users. One of such personalization options available to users is the creation of customized themes. Instead of using the default theme that typically comes with the Telegram app, users can now create theirs. Users can also share the created themes with the public. Here’s how you can create a custom Telegram theme on your desktop or mobile.

✔️ پاسخ سوال: گزینه شماره 2

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