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Jenis-Jenis Memori

Memori merupakan salah satu perangkat keras untuk media penyimpanan data sementara pada computer. Memori dibagi menjadi 2 buah jenis, yaitu ROM (Read Only Memory) dan RAM (Random Access Memory).

ROM

ROM

Sesuai dengan namanya, Read Only Memory ini berisi suatu program yang telah diterapkan oleh pembuatnya dimana program tersebut tidak dapat di tambah, kurang atau diubah. Memori ini digunakan saat komputer melakukan booting. Isi dari ROM tidak akan hilang walaupun tidak dialiri listrik.

ROM memiliki beberapa perintah seperti:

  • Membaca Sistem Operasi
  • Mengecek semua peralatan yang ada si Unit system

RAM

RAM

Merupakan tempat penyimpanan sementara pada saat computer menyala. RAM memiliki fungsi untuk mempercepat pemrosesan data pada computer. Kapasitas RAM sangat mempengaruhi kecepatan suatu computer. RAM dibagi lagi menjadi beberapa jenis.

  • EDORAM (Extended Data Out RAM)

Jenis ini memiliki kemampuan membaca dan transfer data secara cepat. EDORAM bebentuk SIMM (Single Inline Memory Module).

  • SDRAM (Synchronous Dynamic RAM)

Lebih cepat dari EDORAM. Bentuk dari SDRAM adalah DIMM (Dual Inline Memory Module).

  • DDR SDRAM (Double Data Rate Synchronous Dynamic RAM)

Generasi penerus dari SDRAM, biasa disebut DDR1 SDRAM yang sekarang sudah terbarui dengan DDR2 dan DDR3. Kecepatan yang dimiliki lebih dari SDRAM.

  • RDRAM (Rambus Dynamic RAM)

Memori berkecapatan tinggi, didesain untuk mendukung prosesor Pentium 4.

 

Referensi :

http://temukanpengertian.blogspot.com/2013/01/pengertian-rom-read-only-memory.html

http://kangsofwantea.wordpress.com/2013/03/30/jenis-jenis-memori-pada-komputer/

 

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