New Seven Wonders of the World

Information taken by Wikipedia

Wonder	Location	Image
Chichen Itza Chi'ch'èen Ìitsha'	Yucatán, Mexico
Christ the Redeemer O Cristo Redentor	Rio de Janeiro, Brazil
Colosseum Colosseo	Rome, Italy
Great Wall of China Wànlǐ Chángchéng	People's Republic of China
Machu Picchu Machu Pikchu	Cuzco Region, Peru
Petra al-Batrāʾ	Ma'an Governorate, Jordan
Taj Mahal ताज महल	Agra, India

Hard Drive

A hard drive uses similar memory storage technology to cassette tapes and video tapes. You may already know that tapes store information on long, thin strips of tape with a delicate magnetic material on its surface. Likewise, hard drives contain round, mirror-like platters that are covered with that same magnetic recording medium.

Just as a head inside of your cassette player or VHS player reads the data on the tape, a head inside your hard disk drive reads and writes data to the platters. This head is on an arm that is attached next to the platters, so that it can pivot back and forth over the them.
The average modern hard disk drive has several platters inside of it, stacked one on top of the other, like an Oreo cookie. There is a small gap between each platter, which allows each platter’s head to pass over it. The heads are all on the same arm, which has a separate branch for each head, rather like the tines of a fork turned on its side.

When you turn your computer on, the platters immediately begin to spin. The platters in a desktop computer hard disk drive typically get up to about 7,200 rotations per minute (rpm), while the hard drives in laptop computers usually run at 5,400 rpm. You may be able to hear the steady hum of your hard drive when the fan is not running.
When your computer is on but you are not retrieving or writing anything to the memory, the platters in the hard disk drive are always spinning. The arm with the heads on it, however, only begins to move when you run a program or open, save, or delete a file. This arm can move back and forth across the surface of the platter as many as 50 times in a single second, causing it to appear as a blur if you ever have the opportunity to watch. Because everything in the hard disk drive moves so quickly, the head never actually touches the platters, instead skimming just barely above them, supported by a cushion of moving air that is generated by the platters’ spinning.

The rapid motion of the platters and heads inside your hard disk drive make it susceptible to “head crash,” which is where the heads crash into the platters. Several different things can cause head crash. If dust gets into your hard drive and settles on the platters, it can actually cause the arm to bounce as the disk operates. The magnetic recording medium is extremely fragile, and is often ruined when the heads crash into the platters.

Digital Camera

Information taken by Wikipedia

A digital camera or digitalcam is a camera that takes video or still photographs, or both, digitally by recording images via an electronic image sensor.

Many compact digital still cameras can record sound and moving video as well as still photographs. Most 21st century cameras are digital

Digital cameras can do things film cameras cannot: displaying images on a screen immediately after they are recorded, storing thousands of images on a single small memory device, recording video with sound, and deleting images to free storage space. Some can crop pictures and perform other elementary image editing. The optical system works the same as in film cameras, typically using a lens with a variable diaphragm to focus light onto an image pickup device.

Professional life

There are many stages of life in our life cycle, Professional life is one of the most important stage of the life.
Because professional life is a turning point of your life, it change the views, goals, style, mind, thoughts, nature and so many thing in your life.

When we were students, we were very far away from the professional life, that time students are just enjoying their life as a bird, out of tensions, free from the pressures, circle of friends, always with parents, and so many dreams for their future, always honest, ready to do anything for anybody like friends, parents etc.

But when you became a professional, the life style will almost change, you have some responsibilities on you shoulder as a employee of any particular organization. you have to think every time when you going to take decision about any plan, any leaves, anything. your brain always working while you are in the office and while you are in home too.

There are some responsibilities you need to always follow, these responsibilities made you responsible and your personal life will also change.


So all the best for your professional life.


Thank You