With the development of technology, the storage capacity of mobile phones and computers is constantly increasing, but the way they are stored is very different. Mobile phones use solid-state memory cards, while computers use mechanical or solid-state portable hard drives. So, what's the difference between them?We analyze it from the following aspects:
Volume
The size of a mobile phone 1TB memory card is very small, generally only the size of a coin, or even smaller. This is because the memory card of a mobile phone is made up of flash memory chips, which can store data in tiny transistors and do not need to take up too much space. The volume of the computer mobile hard disk is relatively large, generally 25 inches or 3The 5-inch specification requires a case to protect. This is because there are two types of portable hard drives for computers, one is a mechanical hard drive and the other is an SSD. HDDs are made up of a motor-driven platter and a magnetic head, requiring a large space to accommodate these mechanical structures. Although the SSD is also composed of flash memory chips, in order to be compatible with computer interfaces and standards, it needs to be made into a strip shape, and in order to increase the capacity, multiple flash memory chips need to be spliced together, so it cannot be made too small.
Speed
The speed of the mobile phone 1TB memory card is generally faster than the speed of the computer's mobile hard disk, this is because the mobile phone's memory card uses the NVME protocol interface, which is a high-speed data transmission protocol, which can communicate directly with the main control chip of the mobile phone without going through other bridge chips. The speed of computer mobile hard disk is affected by the interface and type, generally using SATA or USB protocol interface, these protocols are relatively slow, and need to go through the conversion of multiple chips, increasing the latency of data. In addition, the speed of HDDs is also affected by the speed of the platter and the seek time of the head, which are not problems with solid-state memory cards.
Durability
The durability of the mobile phone 1TB memory card is generally worse than the durability of the computer mobile hard disk, this is because the memory card of the mobile phone is composed of flash memory chips, the flash memory chip has a life limit, every time the data is written, a certain life will be consumed, when the life is exhausted, the flash memory chip will fail, and the data can no longer be stored. The durability of computer mobile hard disks is affected by the type and use environment, mechanical hard disks are easily affected by vibration and temperature due to their mechanical structure, resulting in damage to the platter or head and data loss. Although the SSD is also composed of flash memory chips, due to better control chips and algorithms, it can effectively extend the life of the flash memory chip, and it is not afraid of vibration and temperature, and is more stable.
The ** of the 1TB memory card of the mobile phone is generally higher than the ** of the computer mobile hard disk, this is because the memory card of the mobile phone uses a single large-capacity flash memory chip, and the manufacturing cost and market of this chip are relatively high, so the ** is also relatively high. The computer mobile hard disk is affected by the type and capacity, the mechanical hard disk due to the maturity of technology and market competition, the ** is relatively low, but the larger the capacity, the higher the **. SSDs are relatively low due to the use of multiple small-capacity flash memory chips, but they also increase as capacity increases.
Summary
The difference between a mobile phone 1TB memory card and a computer mobile hard disk is mainly reflected in the volume, speed, durability and **, they have their own advantages and disadvantages, suitable for different use scenarios and needs. Mobile phone 1TB memory card is more suitable for users who need high speed, small and portable, while computer mobile hard disk is more suitable for users who need large capacity, stability and economy.