IDE and SATA are both data interfaces but they still need to be connected to storage devices like the hard drive in order to make them work. SATA is known to be the standard right now because it is newer and faster than IDE drives that were released first. You can learn if your hard drive is IDE or SATA based on the information that you will read on your hard drive.
There are details that are available for sure. You may also know what type of data interface that you have depending on the available connectors. Take note that SATA has a lot of advantages right now over IDE not only in terms of speed but also with the other details.
IDE stands for Integrated Drive Electronics; it is a type of interface that help connects storage devices such as hard drives in a computer. It is often referred to as Parallel ATA. It requires all the parallel signals to arrive at once. Compared to SATA, it transfers data at a slow speed of about of 133MB/s. From the drive connector, you tell that there is a single cable for data and power.
SATA stands for Serial Advanced Technology Attachment; it is a bus interface that connects bus adapters to storage devices such as hard drives. It is a newer interface. SATA works with a serial connection. The rate of data transfer of data is as high as 6GB/s, which a lot faster than IDE. The SATA has data and power cable on different sides of the drive connector.