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Memory Management of operating system :check:, Characteristics of the…
Memory Management of operating system :check:
Determines how memory is allocated among competing processes, deciding which gets memory, when they receive it, and how much they are allowed.
Menentukan cara memori diperuntukkan antara proses bersaing, memutuskan yang mana mendapat ingatan, bila mereka menerimanya, dan berapa banyak ia dibenarkan.
In operating systems, memory management is the function responsible for managing the computer's primary memory.
Dalam sistem pengendalian , pengurusan memori ialah fungsi yang bertanggungjawab untuk menguruskan memori utama komputer .
The memory management function keeps track of the status of each memory location, either allocated or free.
Fungsi pengurusan memori menjejaki status setiap lokasi memori, sama ada diperuntukkan atau percuma .
When memory is allocated it determines which
memory locations will be assigned.
Apabila memori diperuntukkan ia menentukan lokasi memori yang akan diberikan.
Characteristics of the different levels in the hierarchy of memory organization
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Memory Hierarchy is an enhancement to organize the memory such that it can minimize the access time.
Hierarki Memori ialah peningkatan untuk mengatur ingatan supaya ia dapat meminimumkan masa capaian.
The Memory Hierarchy was developed based on a program behavior known as locality of references.
Hierarki Memori telah dibangunkan berdasarkan tingkah laku program yang dikenali sebagai lokaliti rujukan.
External Memory or Secondary Memory –
Comprising of Magnetic Disk, Optical Disk, Magnetic Tape i.e. peripheral storage devices which are accessible by the processor via I/O Module.
Memori Luaran atau Memori Sekunder –
Terdiri daripada Cakera Magnet, Cakera Optik, Pita Magnetik iaitu peranti storan persisian yang boleh diakses oleh pemproses melalui Modul I/O.
Internal Memory or Primary Memory –
Comprising of Main Memory, Cache Memory & CPU registers. This is directly accessible by the processor.
Memori Dalaman atau Memori Utama –
Terdiri daripada Memori Utama, Memori Cache & daftar CPU. Ini boleh diakses secara langsung oleh pemproses.
Memory management strategies
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Single contiguous allocation.
Peruntukan bersebelahan tunggal.
Partitioned allocation.
Pembahagian peruntukan.
Paged memory management.
Pengurusan memori berhalaman.
Segmented memory management.
Pengurusan ingatan terbahagi.
Memory swapping tecnique during system processing
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Swapping is a method in which the process should be swapped temporarily from the main memory to the backing store.
Pertukaran ialah kaedah di mana proses harus ditukar buat sementara waktu daripada ingatan utama ke stor sokongan.
Brought back into the memory for continue execution.
Dibawa semula ke dalam ingatan untuk meneruskan pelaksanaan.
Also helps in running multiple and big processes in parallel.
Juga membantu dalam menjalankan pelbagai proses dan besar secara selari.
The swapping process is also known as a technique for memory compaction. Basically, low priority processes may be swapped out so that processes with a higher priority may be loaded and executed.
Proses pertukaran juga dikenali sebagai teknik pemadatan ingatan. Pada asasnya, proses keutamaan rendah boleh ditukar supaya proses dengan keutamaan lebih tinggi boleh dimuatkan dan dilaksanakan.
https://www.javatpoint.com/memory-management-operating-system
https://www.geeksforgeeks.org/memory-hierarchy-design-and-its-characteristics/
https://er.yuvayana.org/memory-management-techniques-in-operating-system/
https://www.studytonight.com/operating-system/swapping-in-operating-system
Memory Management
