13/04/2017
Why SSD is better than HDD
Today many users install operating system on SSD and use HDD to store games, films and other files. If asking them why, they will tell you SSD is doing much better than HDD. But since SSD is much more expensive, so migrating OS disk to SSD is a wise choice. Wondering why SSD is better than HDD? Let's get to the introduction of them first.
ssd hdd
HDD (Hard disk Drive) is the basic storage in computer. The most prominent symbol for HDD is that it access data with a head located on an arm. HDD consists of many removable parts, making itself easily to get shocked and damaged. At present, the disk capacity of HDD are typically 500G, 1TB, 2TB, 4TB, etc., and the sizes can be classified as 3.5 inch, 2.5 inch, 1.8 inch, etc. The interfaces of HDD are always PATA, SATA, SCSI etc.. HDDs with PATA and SATA interfaces are typically suitable for home, with large capacity and lower price; while the SCSI interface is normally used on high-end servers and workstations, with good performance and high stability, but the price is more expensive. More details information about price, you could view at Amazon or other Online store.
SSD (Solid State Drive) is a kind of hard disk which is made of solid state electronic memory chip arrays, and is composed of control units and memory units (including Flash chip and DRAM chip). SSD is widely used in military, video surveillance, network monitoring, navigation equipments and other fields. Although the cost of SSD is relatively higher than that of HDD, SSD is still gradually spread to the market. The new generation of SSD is generally using SATA-2 interface, SATA-3 interface, SAS interface, MSATA interface, PCI-E interface, NGFF interface, CFast interface and SFF-8639 interface.
SSD has the following advantages over HDD:
1.Faster read-write speed: Solid-state drive does not possess any head, instead, it use flash memory as the storage medium, and the seek time is almost ZERO, without any delay. No matter you are going to run operating system or large software on it, SSD is competent, and the running speed has a qualitative leap.
2.Nonperishable: SSD does not contain any removable mechanical parts internally, so it can calmly face vibration, overturn and drop, minimizing the possibility of data loss when a laptop accidently falls down.
3.Less heat dissipation and zero noise: since SSD adopts flash memory chip, SSD gives out little calorific value. Also, because there is no mechanical motor, the noise value is nearly 0 db.
4.Portability: compared with the traditional HDD, SSD is smaller in volume and lighter in weight, which is convenient for users to take away.
