What is Hard disk/ How a Hard drive store data

What is Hard disk?

A hard disk is part of a unit called a  hard drive or hard disk drive that stores data and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces. Today's computers typically come with a hard disk that can contain anywhere from billions to trillions of bytes of storage.It is available randomly up to 4 TB.

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The hard drive is a drive which  stores all your data. Hard disk is the house, where all your files and folders are physically located. A typical hard drive is only slightly larger than your hand.

The term "hard drive" is actually short for "hard disk drive." The term "hard disk" refers to the actual disks inside the drive. However, all three of these terms are usually seen as referring to the same thing -- the place where your data is stored. Since I use the term "hard drive" most often, that is the correct one to use.

How a hard disk store data?

The data is stored on a stack of disks that are mounted inside a solid encasement. These disks spin extremely fast (typically at either 5400 or 7200 RPM) so that data can be accessed immediately from anywhere on the drive. The data is stored on the hard drive magnetically, so it stays on the drive even after the power supply is turned off.

v It was introduced in 1956 by IBM.

v Randomly its  capacity range from 40gb to 4 TB.

v 5400 rpm can transfer data 200MB/sec.

v 7200 rpm can transfer data 150MB/sec.

v Revolution per minute (rpm) is a rotation of disk.

What kind of hard disk is?

A small hard drive has only one platter, but each side of it has a magnetic coating. Bigger drives have a series of platters stacked on a central spindle, with a small gap in between them. The platters rotate at up to 10,000 revolutions per minute (rpm) so the read-write heads can access any part of them.

5 AMAZING AIRCRAFTS

5 Amazing Personal Air-Crafts

HEY WHATS UP GUYS, I HOPE YOU ARE ALL FINE,

NO 5: AEROMOBIL 3.0

The Airomobil is a Slovak prototype roadable aircraft designed by STEFAN KELVIN and first flown in 2013. This aircraft will be produced by AEROMOBIL s.r.o.

 It is a four wheeler aircraft which has maximum speed on ROAD is 160 km/h and maximum speed in AIR is 700 km/h. It is personal passenger drone which has two seats. You can also buy it.

[IT HAS PRICE 1.6 MILLION ($) DOLLORS.THE DILLIVERIES BGGEGNEING IN 2020]


Click on this video and see

NO 4: EHANG 184-AAV

The Ehang aircraft is the Safest, Smartest and Eco-Friendly low attitude autonomoud aerial vehicle, Aiming on provide Medium short distance communication and transport solution.

It is one seated personal aircraft you can go to office, college and other places on your craft it id also most beautiful aircraft. It is automatically aircraft which has speed 160 km/h It has also camera , computer, and drone.

[IT HAS PRICE 3.5 MILLION ($) DOLLORS]

NO 3: THE PAL-V ONE

The PAL-V  one in flight is an auto gyro or gyro-copter with a fold-able pusher propeller providing forward thrust and a free spinning rotor providing lift. Its provide directional stability twin boom-mounted tail fins.

It is designed to move like car on road with fold-able wings. It has only seat to survive.It is made by aluminium and fiber optics which has speed on road 170 km/h and on air is 500 km/h. and has a feature of auto-pilot mode. It can support up-to 250 kg.

[IT HAS PRICE 5.9 lac ($) DOLLORS]

NO 2: VOLOCOPTER VC 200

It is rotor air craft which is expected to have a cruising speed of at least 100km/h (54),a flight altitude of up-to 1980 meters(6500 feet) which can support upto 450 kg and a flight time longer than a hour. It is a two passenger drone produced by Alexander Zosel. IT is charged with battery made with fiber optics and carbon. After charging you can fly it upto 150km. It can support upto 250 kg.

NO 1: THE AUGUSTA-WEST LAND PROTECT ZERO

It is a hybrid tilt-rotor/lift fan aircraft. It has been developed by AUGUSTA WEST LAND as a technology demonstrator, and is used to investigate all-electric propulsion and other advanced technologies. IT is the first ELECTRIC TILT-ROTOR aircraft. It  is totally battery rechargeable it is designed as supersonic jet and one passenger aircraft ehich has two wings.

It does not want runway. It is the most speed-able aircraft which has speed 1000km/h.

[IT IS FUTURE TECHNOLOGY COMMING SOON]

If you like that information please share it with your friends if you have any questions please ask in comments thankyou……………..(By Ahsan Naseer)