How does flash memory work? - Computer memory
Think of your memory as soon as possible - as long as you are awake; After waking up in the morning, forget everything else and can not recognize anything, how did it feel? Surely do not want to imagine this! The same thing happens with bat computer memory. You can remember your data as long as it is available on the computer, but as soon as the power is gone, the computer forgets all the data.In large computers, data is stored with magnetic power, which is called hard drive; It is able to remember the data properly after the electricity has gone. But portable devices such as smartphones, digital cameras, MP3 players, etc. are hard to connect to, so it is necessary to have smaller storage media smaller and more capacities.As a flash memory or flash storage, we can store files, music, pdf and not know how many types of files can be stored on a small sized storage. In this article we will discuss how Flash memory works and how to save your data permanently in the place it is forgotten.
Computer data
Computer and Electronic Devices work in digital format. You may be writing something using word processing software on your computer, doing any data read or write, but if you think that each job is different, the computer uses the same method to complete each of your separate tasks. That is why the computer does whatever you do on the computer, the computer works by modifying it in Zero or Owen.And to work in this Zero or Owane is called binary in the computer world. Suppose you typed the English letter "A" on the computer, this letter is "A" for you; But the computer can see it as "01000001" as 8 binary numbers. Thus, there are different binary numbers for each uppercase and lowercase letter. There is also a separate binary number for any number except zero or one.
That means that the command that you give to the computer or any data that will save the computer will keep the computer in a specific pattern of zero and anne. Now suppose you write "techhabs" on the computer and it writes in computer binary as "111000111000". But when you try to read this data from another computer, how will another computer understand your computer using any method or pattern using these binary numbers?Here I am writing Bangla article and you can know and read a Bengali or Bangla language, you know which word has any meaning and so you understand this post. But who does not know Bangla, can not read or understand the meaning, how can he understand the meaning of this post?In order to understand the same data on all computers in a similar manner, there is a need to create a binary pattern by following the same procedure. So all computers work using ASCII (American Standard Code for Information Interchange) standard.
All right, we knew that the computer only registers data by making a specific pattern of Zero or Owan, but how does this Zero and Wan keep the computer in its memory? Do not go with your computer, why not just see the computer as Zero or One and create the pattern according to the standard. That is to save the computer data to save the Zero and the one in the correct pattern.To save this Zero and WAN, there are millions of microscopic switches on computer memory chips called transistors. And you know that I or everyone knows that the switch work is turned on or off. These switches do the same thing here too. That means every transistor can be turned on or off, when a transistor is turned on it stores it one and stores the Zero off. To save 8 binary numbers in any memory, 8 transitors are required to be off or off and according to the correct pattern.Each zero or one is called a bit and one byte in 8 bits. So you hear that your computer memory is so megabytes or so gigabytes; It means that it can be preserved in millions or billions of letters. (Mega means million and giga means billions).
What is Flash Memory?
General transistors and electronic switches are turned on or off with the help of electricity; This is one of the biggest advantages of this, and it is also one of the weaknesses. It is possible to save information on the convenience, on-the-go computer memory, with just switch off. The work is done after the flow of electricity through the memory circuit. And it's weakness; Because when the power flows off the transistors will return to the previous position and all the patterns you have saved will be forgotten.
When the electricity goes away, all the data that the flash memory forgets is called random access memory or RAM. But there is another kind of memory that is called read only memory or ROM, but it does not forget to delete any data. But why not? See when the ROM is made or the phone memory card or the SSD is designed to create flash memory, it is already stored in the information of Zero and On One; So when the power goes away, it does not forget any information.Suppose that your memory card factory has been truncated in this pattern "11110000". Now you want to write a data that is binary "11001100"; Then the previous pattern of your memory card will be replaced by "11000100" instead of "11110000". Understand?
However, there are various categories of flash memory for different types of computers. ROM memory is used when the memory stored on your data or permanent data. The memory that is always read or write and stores temporary data such as forgot flash memory is used in RAM. Large data on the computer is basically saved on the hard drive But hard drive can not read data right on the flash like flash memory. Flash memory is used instead of hard drive on portable devices.