Technology Question and Answers

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How to do disk cleanup?

Disk clean up is a very important activity that keep your computer efficient and responsive. This activity removes unnecessary and temporary files from the hard disk and. This will fasten the speed of your computer ...

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How Emotiv EPOC Works?

In the never-ending quest to make video games realistic, developers have focused on feel, screen appearance and sound. The technology that brings games to life has advanced so much over the last decade or so ...

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Who Invented The Aero Plane?

Who invented the airplane? The world’s first aero plane was made by the brothers Wilbur Wright and Orville Wright of the United States of America, in 1903. The pair later became famous as the Wright Brothers. ...

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Who Invented Algebra?

Algebra is an ancient and one of the most basic branches of mathematics. It was not developed or invented by a single person but it evolved over the centuries. The name algebra is itself of ...

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Who Invented 3D?

The first patent for a mechanism which produced 3D effects was issued in the name of William Friese-Greene, a portrait photographer and an inventor in the 1890s. He played two films juxtaposed and used a ...

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What Are Top Five E-mail Service Providers?

(1) G-mail: Launched on 1 April 2004, the service provider went public on 7 February 2007 and has since become the most used free email service provider in the world. Innovations like cloud computing and ...

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Which Are The Ten Most Popular Search Engines Around The Globe?

(1)Google: tops the list and accounts for responding to around 67% search queries in the world. The company was founded in 1998 but just after a decade, it clearly dominates this genre. (2)Yahoo: Almost 7.8% of ...

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What Are The Ten Most Popular Websites?

(1) Google (google.com): Google began as a research project in 1996 and today it is the most visited website in the world. It gets over five billion clicks a day. (2) Facebook (facebook.com): ...

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How To Get Rid Of iPod Scratches?

A few years ago most of us didn’t know what an iPod was, much less how to get rid of iPod scratches. But this is a real problem for fans of this electronic device. Fortunately, ...

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Where Is Remote Desktop On My PC?

Where can I find Terminal Services on my PC? Right-click My Computer, go to the Properties tab, click there and look for the Remote Tab and then click on it. There you’ll see an option written ...

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Where Is The Device Manager?

Go to the Start menu, click on it and a list will come up. Select the Control Panel tab in the list; a new window will open. In the newly opened window, there will ...

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Where Is The Recycle Bin?

Right click on the Desktop, go the Properties then look for Desktop Tab. Then click on Customize desktop. There the ‘recover option’ is available. Recycle Bin was introduced by the Microsoft as a part of Windows ...

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Who Invented Cellophane Tape?

Richard G. Drew, an engineer at the Minnesota Mining and Manufacturing Company or in short the 3M Company, is the inventor of what are now known as cellophane tapes or Scotch tapes. Cellophane tapes are ...

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When Was X-ray Discovered?

X-rays were discovered for the first time in 1895 by a German physicist named Wilhelm Conrad Röntgen. It was an accidental discovery. X-rays are also known as ‘Röntgen radiation’ and they fall into two categories: ...

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Are Cell Phones Safe To Use?

Mobile phones are a recent invention; the first hand held device for making a phone call was used on 3 April 1973 by Martin Cooper of Motorola. The first commercial cellular network (1G) was launched ...

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What is Mobile Number Portability?

Mobile Number Portability (MNP) is a service which enables consumers to change their mobile operators without having to change their phone number. In simple words: if a person named Fechyo has got a connection of ...

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What is the difference between a switch and a hub?

The Hub A hub is a small device that connects multiple computers together. A hub is the least expensive, least intelligent and least complicated as compared to a switch. In small computer networks, the hub ...

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How does a computer keyboard work?

A computer keyboard is a part of a much larger family of keyboards such as typewriter keyboards, mobile keyboards or musical keyboards and so on. All these keyboards are defined as input devices, by using ...

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How do Smoke Alarms work?

Also known as ‘smoke detectors’, smoke alarms are devices which detect ‘smoke’ and then issue a warning. They have been around for quite sometime, but it was only recently, in the past 30 years, that ...

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What is Cron Job?

The word Cron actually originated from the word chronograph, which means a time piece. A Cron is actually a job scheduler which is used to schedule time-based jobs. It is also called a Cron Daemon. ...

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How do ball point pens work?

Ballpoint pens are also known as ‘biros’ in Britain and Australia and they carry with them a long history of development. If the sources are to be believed, then as early as the 17th century, the ...

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What Are The Different Types Of Transmission Microscopy?

With the increase in clinical research, more and more input has been done to improve the visualisation skills to view cells. This has lead to many variations to bright field of transmission microscopy. Hence many ...

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Who Invented ChapStick?

Dr. Charles D. Fleet, a physician from Lynchburg, the United States, invented the ‘ChapStick’ as a lip balm in the early 1880s. The first chapsticks resembled candles without wicks and they were packed in a ...

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Who Invented Numbers?

No one knows! Yes, no one knows by whom the numbers were invented! Historians tell us that the earliest evidence of counting dates back to 35, 000 BC. Some bones of that era have been ...

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Who Invented Clothes?

It is not known who the first person to clad himself or herself was. It is likely that that some primitive humans, after killing animals, could have put on their skin to keep themselves warm. ...

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Who Invented Roller Skates?

John-Joseph Merlin, a Belgian inventor, invented the roller skates. The inventor was not a well-connected man so his invention largely went unnoticed in 1760. It was considered merely a pastime by his contemporaries and still ...

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How To Get Rid Of Computer Viruses?

Computer viruses are unwanted computer programs. They keep themselves hidden in your computer and then replicate themselves in their own way and multiply (spread). The Internet connects a lot of computers to each other and ...

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Why Do Time Zones Run North-South And Not East-West?

The reason is, the earth rotates from west to east and if the time zones ran east-west then it would put all countries on the equator in a single time zone. It would put some ...

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Who Invented Matches?

There is some evidence that the ancient Chinese used sulfur matches as early as the 6th century. The name of the inventor is still not known but the historical evidence is credible. In spite of ...

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How To Speed Up A Computer?

A computer is a machine which can be programmed. It receives input, stores data and processes it to give us an output in a useful format. Although, mechanical computers have existed for a long time ...

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How Does A Landline Telephone Work?

The word ‘telephone’ comes from two Greek words tele (far) and foni (voice) and it can be defined as an instrument ‘that transmits and receives sounds from a long distance’. Although Alexander Graham Bell is credited ...

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Who Invented Sundials?

The Egyptians and the Babylonians were the first to make use of the sun to measure time. This was around 3500 BC. Their sundials were big pillars and they were called obelisks. The word ‘obelisks’ ...

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How Do Sun Glasses Work?

Those who live in the tropics probably all wear sun-glasses. It also amazing that how little we think about them, except for the fact whether they make us look smart or not. In any typical ...

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How Is Table Salt Extracted From The Sea?

A chemist would like to define salts as ionic compounds, which possess some kind of negative ion (s) except for the hydroxide ion (OH-), and positive ion (s) except for the hydrogen ion (H+). But ...

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What Is The Difference Between Open Source And Closed Source Software?

In today’s business world which uses IT for its optimal and non-stop functioning, software is something which any organization will not run without. Speedy business needs has made software an absolute requirement. This has ...

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Who Invented Arches?

The Babylonians were the first to make use of arches in their architecture in recorded history. Among the earliest known arches, the Ishtar Gate of Babylon is one and it dates back to 6th century ...

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Who Invented Roller Coasters?

The issue is still disputed because the historians don’t agree on where the roller coaster was built. Some say it was Russia while other historians emphasize that it was France. In both cases, the roller ...

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Who Invented The Fridge/Refrigerator?

William Cullen of the University of Glasgow demonstrated for the first time in recorded history 1748 how ‘artificial refrigeration’ could be done. But it a German engineer, Carl von Linden, who holds the first patent ...

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Who Invented Solar Panels?

Charles Fritts, an American inventor, is the creator of first working solar cell. He produced the first photovoltaic cell in the world in 1882. Although he was not the first person to have visualized photoelectric ...

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Who Invented The Microscope?

Zacharias Janssen, probably with some help from his father, made the first microscope in the world around 1595. He was a Dutch who dealt in optical equipments. The first microscopes made by Zacharias Janssen or ...

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