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What is capacity memory for my 2011 mac desktop
What is capacity memory for my 2011 mac desktop







what is capacity memory for my 2011 mac desktop
  1. #What is capacity memory for my 2011 mac desktop how to#
  2. #What is capacity memory for my 2011 mac desktop upgrade#
  3. #What is capacity memory for my 2011 mac desktop software#
  4. #What is capacity memory for my 2011 mac desktop professional#

  • Capacity: Capacity of memory is much smaller than storage.
  • However, storage devices can keep data for a long-term, even without power.
  • Data retention: Data stored in memory (here refers to RAM) is temporary, and you will lose the data when you shut down your computer.
  • There are some differences between memory and storage. Someone says that he has a computer with memory of 500 GB, but actually, he means the storage of the computer is 500 GB.

    #What is capacity memory for my 2011 mac desktop upgrade#

    The internal hard drives have two types: HDD and SSD.Nowadays, many users like to upgrade their internal hard drives to SSDs. Tip: The secondary storage include internal hard drives and external storage devices like USB, CD, etc. The system related part is similar to the firmware, while the other part used to store personal files is similar to the storage. For phones, ROM is used to save both system related files and your personal files. However, ROM in phones is different from that in computers. RAM in phones is the same as that in computer, which is used for running programs. When mobile phone manufacturers introduce mobile phones, they will say how much RAM and ROM their phones have. There are also concepts of ROM and RAM in mobile phones.

    #What is capacity memory for my 2011 mac desktop software#

  • ROM is used to store software that is rarely changed during the life of the system, sometimes known as firmware.
  • The data stored in ROM, which is written by the manufacture of the memory device and cannot be modified then, is stable and unable to be lost even if the computer is powered off.
  • Read-only memory (ROM) is non-volatile.
  • Usually, it runs much faster than almost all access devices, and its access latency is negligible compared with other storage devices involving mechanical operation, such as hard disks and CD drives.
  • It can be read and written anytime with a high speed.
  • If you don’t save it again, the changes you just made will be lost when you shut down the computer.
  • Data in RAM comes from storage devices.When you are trying to access to a file, it will be copied from storage devices and then you can look through and edit itin the memory.
  • If you need to keep these data such as words and photos, you have to save them in a long-term storage device, like a hard drive.
  • RAM is volatile.When you shut down your computer, data stored in RAM will not be stayed.
  • RAM is also called primary memory, which exchanges data with theCPU directly.
  • Memory consists of main memory and cache, while the main memory includes two types: RAM (Random Access Memory) and ROM (Read Only Memory). The RAM is volatile memory while the ROM non-volatile memory. Memory, as the link between the Central Processing Unit (CPU) and data in your computer, is the most essential element of a computing system. Tip: Storage in this article refers to Secondary storage. A computer’s memory is used for temporary storage, while a computer’s secondary storage is permanent storage. Usually, people say that there are two kinds of storage in computer: temporary storage and permanent storage.

    what is capacity memory for my 2011 mac desktop

    After the operation is completed, CPU will transmit the result back to the secondary storage. When the computer is running, CPU will transfer the data that needs to be operated from the secondary storage into the memory.

    #What is capacity memory for my 2011 mac desktop how to#

    How to differ memory and storage? Please keep reading to learn the distinction between them.Īs we all know, computer hardware is composed of three parts: the host computer consisting of CPU and memory, system buses, and external devices like secondary storage and other I/O devices. They often mix one with the other, and call the device storing data as memory or main memory.

    #What is capacity memory for my 2011 mac desktop professional#

    Sometimes people who are not professional in computer can’t figure out the differences between memory and storage.

  • Computer Memory vs. Storage: How Much Do You NeedĬomputer Memory vs. Storage: Brief Introduction.
  • Computer Memory vs. Storage: Difference.
  • Computer Memory vs. Storage: Brief Introduction.








  • What is capacity memory for my 2011 mac desktop