FIRST IS SSD SECOND IS HDD DISK DRIVE
HDD stands for Hard Disk Drive. There are two types of hdd
, first and the old was pata hdd, Pata stands for paralel ATA, this it was the first model of cable connection for hard disk drive and cd rom drive. This models of hard disks are about 10 times slower than newer model SATA, and they need more energy to work. After PATA models came SATA models, SATA terms stands for Serial ATA, this was the new model of HDD and the new model of cables to conncet from motherboard to Hdd or to DVD/CD reader and writter. This model was a very good thing in perforamance of computers.
Sata hdd has a writting speed about 20mb/s and reading speed about 70mb/s.
Fist cable is Pata and second is sata
Sata cables are samller and very fast and strong than pata, pata calbes had about 24 pins.
Sata cables has seven pins. There are two types of sata, Sata that is used to connect a hdd or dvd drive to mothertboard ,and another type is ESATA, esata stands for Expres SATA, this port is outside of computer or laptop, si like a usb port, in this port you can connect uour hdd by using esata cable like a flash drive.
This is Experss SATA cable
Now let's talk about SSD
SSD term stands for Solid State Drvie, this type of drive is new and is really great drive, this type of drive has a lot of new things. Fist is new form, this type of drives are 2 times smaller than most of hdd.
Is Faster
SSD is 10 times faster than hdd, writtin speed is about 200 mb/s and readin speed is more than 400mb/s. Another good thing they are really good at energy saving, they do a lot of job and spend about 70 % less energy than Hdd drives.
The worst thing of ssd is price, they are very expensive compare to hdd. But ssd is the future of new computers and laptops.