What is the difference between SATA and PATA hard drives?

Updated on number 2024-02-08
7 answers
  1. Anonymous users2024-02-05

    1. The interface is different.

    2. The transmission speed is different (this is the most essential difference).

  2. Anonymous users2024-02-04

    SATA, low heat, fast speed, low noise, and can also be hot-swapped

  3. Anonymous users2024-02-03

    The full name of PATA is Parallelata, which is the parallel ATA hard disk interface specification, which is the most common hard disk interface specification now. The size of the PATA hard disk interface has a very glorious history, and it has developed from ATA33 66 to ATA100 133 to the highest ATA150 today. The full name of SATA hard disk is Serialata, that is, Serial ATA hard disk interface specification.

    At present, the typical write speed of the PATA100 hard drive is 65MB s, while the first generation SATA hard drive has a write speed of 150MB s, and the second generation SATA hard drive has a write speed of up to 300MB s, which is exactly twice the speed of the first generation. The emergence of the SATA hard disk interface specification is actually to replace PATA, just like DDR replaces SDRAM.

    From a technical point of view: how much faster SATA is than PATA?

    Since the emergence of SATA is to replace PATA, where are the main advantages of SATA compared with PATA? The first is speed, as we mentioned above that the transfer speed of the second-generation SATA is 300MB s, but the transfer speed of the third-generation SATA products has been increased to 600MB s. In terms of speed, SATA has left the PATA hard drive far behind.

    In addition, SATA is also superior to PATA in terms of transmission mode. SATA uses single-channel transmission, and PATA uses multi-channel transmission. Some friends may literally mistakenly think that PATA's multi-channel should be faster than SATA's single-channel, but it is not.

    This is because SATA's single data channel does not limit the speed frequency like PATA. SATA transmission lines are nearly 30 times faster than PATA. PATA must transmit 16 signals at a time in the data line, and if the signal does not arrive in time or is delayed, error data will occur.

    As a result, the speed of bitstream transmission had to be slowed down to correct the error. SATA, on the other hand, only transmits one bit of data at a time, and the bitstream is delivered much faster. It's like a game of dribbling, and it's much easier to dribble one ball at a time than 16 balls at a time.

    In addition, another improvement of SATA is its data cable, which is smaller in size, has better heat dissipation, and is quite convenient to connect to hard drives. SATA consumes less power than PATA, which is good news for laptops, while the unique CRC technology makes data transfer more secure. ▼

  4. Anonymous users2024-02-02

    SATA is a second-generation hard disk, which is a serial port type, with a rate of 150M, and IDE is a first-generation hard disk, which is a parallel port type, with a rate of 133M, and also 7200 rpm.

  5. Anonymous users2024-02-01

    To put it bluntly, it's just a serial port hard drive.。。 It's useless to remember too much, the speed is faster than that of parallel port hard drives. But it's all over the streets now. I can't find the old one even if I want it.

  6. Anonymous users2024-01-31

    Our commonly used hard disks are divided into SICI, SATA, IDE, (and there are very few SSDs) are distinguished by interfaces. The data transmission speed of the three interfaces is second to IDE, second to SATA, and second to SICI, which was used by ordinary computers in the early days, and was later replaced by SATA.

    SICI has always been used in high-end servers, but it is also relatively expensive, and few people in ordinary computers are equipped with such hard drives.

    Therefore, SATA hard disk is also an ordinary hard disk, but the interface is different, and the transfer speed is better than that of IDE and popular hard disks.

  7. Anonymous users2024-01-30

    It's the difference between the interfaces, the interfaces of the data cables, and you can see if you compare the two.

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