CIRCUIT controls the effect of data from the BOARD platter. SPINDLE is a type of moter, it is present in the middle of the platter. READ-WRITE ARM is the back of the read right head, both of them are connected. The read-write arm rotates with the help of ACTUATOR. It moves the platter from right to left and works to record and store information. READ / WRITE HEAD is a small magnet mounted next to the read right arm. In this, the data is saved in binary form (0 to 1). MAGNETIC PLATTERS is an important part of it, in which digital information is stored magnetically. Some of the major components of Hard Disk and their functions are shown below. Below we will tell you about the important parts of Hard Disk through which a hard disk works. Now let’s understand a little detail about its structure. We know how many types of hard disks are there. SSD uses flash memory technology to store data. Much better and faster than all other hard disk devices. 
SSD (Solid State Drives) – It is one of the latest drives today. The new version of the SCSI Hard Disk (16-bit ultra – 640) has a data transfer speed of up to 640 MBps and can connect to 16 devices with a cable of 12 meters in length. This is quite parallel to the IDE hard drive. SCSI (Small Computer System Interface) – This type of hard disk uses a small computer system interface to connect to the computer. It is better than the old hard disk drive in many ways. SATA cables are very thin and flexible, which is much better than PATA cables. Its speed can be from 150MB / s to 600MB / s. The data transfer rate of SATA Hard Disk is higher than a PATA drive. SATA (Serial Advanced Technology Attachment) – In most of today’s computers and laptops you will find this type of Hard Disk. It is a medium speed hard disk, its data transfer rate is up to 133MB / s. It was earlier referred to as Integrated Drive Electronics (IDE). PATA Hard Disk uses the ATA interface standard to connect to the computer. PATA (Parallel Advanced Technology Attachment) – This is the oldest type of hard disk. What are the different types of Hard Disk? Currently, there are four types of Hard Disk: The first hard disk was invented by IBM in 1956 and the RAMAC (Random Access Method of Accounting and Control) was the first hard disk. Rather, Hard Disk has the capacity to store many terabytes of data. But it could store data up to 3.14MB only. What is Hardware Know what the CPU is What is a Graphic Cardīefore the use of Hard Disk, floppy disk was used to store information in the computer. Most Hard Disk ranges from 5400 RPM to 7200 RPM. This means how many rounds the platter took in a minute. Its speed is measured in RPM (Revolution Per Minute). The faster the spindle rotates the platter, the faster the data will be stored in the Hard Disk. Its job is to read data and write data from platter. When the platter starts rotating, a Read / Write arm in the Hard Disk moves it from right to left. There are many tracks and sectors present in these platters and it rotates through the spindle. The hard disk consists of one or more circular rotating disks to store the data.Įach platter has a very thin strip, which is made using magnetic material. 
That is why it is also called Electro-mechanical data storage device. Hard Disk uses magnetic storage to store and retrieve digital information. It exists inside a computer case (CPU) and is connected to the computer motherboard using data cables (PATA, SCSI, SATA).
Hard Disk is also called Secondary Storage Device. That is, the computer keeps the data safe even after power off. They are called non-volatile device, which can store any type of data in the computer for a long time. Hard disk work is to permanently store and retrieve computer data. Hard Disk, also called Hard Disk Drive (HDD), is a non-volatile memory hardware device. Hard Disk Definition, functions and types Table of contents What is Hard Disk So let’s first know, what is called a hard disk and then we will talk about other aspects of it. In this post we will tell you what is a hard disk in a computer? In which you will get to know a lot about Hard Disk. Hard Disk is seen as an important component of a computer because no computer will work without it.
Whereas the primary memory device (RAM) serves to process the computer’s programs. In which Hard Disk is a secondary memory device. Just as a library is required to handle books in the library, the same computer also needs such a place in which it can store digital data.Ĭomputers use two types of storage devices to store and process digital content (Document, Image, Videos, Software, Operating system, Program). In this article, you will know what is Hard Disk and what are the types of it? Hard disks are also often called Disk drive or “Hard Disk Drive (HDD)”.
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