Osborne - the first laptop computer, 1981

 Osborne is  the first laptop computer, that was built in 1981.

Fig.1 : Osborne

A Quick Look at Computer Programming Languages - An Infographic

A Computer programming language is a formally structured language to communicate instructions to a computer to make it perform what the user wants it to do.Programming languages are used to control the behavior of computer and to translate algorithms into a form that  a computer can understand.Some of the famous Computer Programming Languages are FORTRAN,COBOL,BASIC,C,PASCAL,C++,PYTHON,JAVA,RUBY and JAVA SCRIPT.The infographic shown below, describes a brief history and evolution of some of the most popular programming languages: 

(Source)

This infographic also shows the popularity of Computer Programming Languages in 2011.

Security Tips on Using Net Banking Service

With proliferation of low cost land-line and wireless internet,new ways of doing business have evolved and internet banking is one such area which is evolving at a great pace.Money transaction and bill payment through online net banking account has now become a commonplace which we could hardly imagine almost two decades ago.With availability of portable smart mobile phones and tablets internet banking is gaining even more popularity.However,downside to the evolving technology is that internet banking is still vulnerable and hackers and crackers can easily breach the security of net banking services though advance security measures are being adopted by net banking services to make internet-banking secure and hard to break into but still for sake of his own good the user of net banking service must adopt some precautionary measures while using net banking services.

Here are some precautionary measures that must be adopted while using net banking services :

1. Keep your Log in Info to Yourself Only: You should never disclose your password,log in name or secret word or answer to secret question to anyone not even to your relatives.This also includes employees of the bank net banking services of which you are using. 

Some Useful Battery Terminologies

• Cold Cranking Amps (CCA) : Cold cranking amps (CCA) is a measurement of the number of amperes a battery can deliver at 0 ° F for for half minute or 30 seconds without dropping voltage below 7.2 volts. So a high CCA battery rating is particularly important in starting battery applications, and also in cold weather.Though not particularly important measurement for Deep cycle batteries, but still it is the most commonly 'known' battery measurement.
• Ampere Hour (AH) : An amp hour (AH) is a rating terminology commonly used for deep cycle batteries. The standard rating is an Amp rating taken for 20 Hours. What this means, say for a 200 AH rated battery is this: Draw from the battery for 20 hours and it will provide a total of 200 amp-hours. That translates to about 10 amps an hour 10 x 20 = 200.However,it is important to note that no linear relationship exists between total time of discharge and the load applied to the battery. The realized capacity of the battery decreases with the increase in load on the battery.This means if you discharged that same 200 AH battery by a 200 amp load, it will not give you one hour of run time. On the contrary, the perceived capacity of the battery will be that of 128 Amp Hours.

Beer Barrel Bed

There is unique hotel in Ostbevern,Germany ,which offers giant wooden barrels transformed into comfortable beds to its customers for sleeping.The Beer Barrel Room may be rented for $140 per night only.

Amazing Bicycle Houses

Here is a collection of images showing amazing tiny Bicycle Houses:

 

Human Mind-Controlled Robotic Arm

Researchers in USA have developed a prosthetic arm at John Hopkins University's Applied Physics Laboratory, that is controlled by human mind like a normal human limb.This robotic arm has been successfully tested on a 53 year old paralyzed woman named Jan Scheuermann in Pittsburgh.She is paralyzed neck-down.Jan was paralyzed 13 years ago when she was diagnosed with spinocerebellar degeneration.
Accurately translating the brain signals was one of the biggest challenges in mind-controlled prosthetics.This objective has been successfully achieved in this project.

Mobile Phone Charger that Runs on Water

A Swedish company has invented a mobile phone charger that runs on water.This charger has been named  PowerTrekk.This charger is good for those people who spend their time away from electricity grid in remote areas like desert or rural areas where there is no electricity.It  has been developed to charge mobile phones,cameras,GPS and other such rechargeable portable devices.  

Volkswagen 1-Litre Car - 282 MPG

Volkswagen is German auto-maker company;its 1-Litre car looks cool for two persons to ride and costs only US $600.It is one of the world's most economical cars.The company is headquartered in Hamburg , Germany.Here is a collection of images of this amazing car:

SLEEPBOX - Small Portable Room

Have you ever experienced a strange situation in which you are in a big metropolis far away from your home;you are feeling tired and you have no place to sleep;you are unable to book or find a comfortable room in some hotel;you are feeling too tired to stay awake or travel any further.Under such circumstances,sleeping in some public place like airport,railway station or bus top is neither comfortable nor safe.So how to tackle this difficult situation?

Colour added to Famous Old Black and White Photographs

Have you ever imagined,how old black and white photographs would look like if transformed into high resolution coloured versions by adding colour.I think coloured versions of old photographs would look quite amazing and more realistic than the original black and white photographs.This is what Swedish artist Sanna Dallaway has done.She is engaged with the business of colourising and restoring the black and white photographs.She is also maintaining her official website.On her Flicker site,she says"I take coloured photographs.If I stumble upon colourless photographs,I colour them".A collection of photographs,which Sanna Dallway has colourised,is shown below along with their original balck and white versions:

Some Cool Railway Models - Part 2

Here is a collection of some more railway models that look realistic:

Some Cool Railway Models - Part 1

Here is a collection of some cool railway models that look quite realistic:

Some Creative Clocks

Here is a collection of some creative and unique clocks:

Some Unusual and Weird Public Phone Booths

We all know what phone booths are used for.Creative people can express their creative talents even in design of seemingly common things like a phone booth or a cubicle.Here is a collection of some unusual and weird phone booths from around the world:

Some Amazing Long-exposure photos

According to wikipedia,Long-exposure photography or time-exposure photography is a technique in photography that involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements.When a scene includes both stationary and moving objects,a low shutter speed can cause interesting effects,such as light trails.Here are some mind-blowing long exposure photos: 

i'm Watch - World's First Smart Watch

You might be familiar with smart phones like iPhone,HTC and Samsung Galaxy etc., that are equipped with many advanced features and state-of-the-art technology,but you might have not heard about a smart watch which has many sophisticated and advanced features like android based operating system,high speed processor,flash memory and RAM to support multimedia that are usually available in smart phones.A few years back such a smart watch might be just a concept but you would be surprised to learn that such a smart watch is now a reality."I'm watch" is the world's first smart watch manufactured by an Italian company Blue Sky, which uses Android as its operating system.Its design is slick,thin and ergonomic with myriad of features and multitasking functions,fit into a tiny space, that are usually available in smart phones. 

Some Creative and Unusual Computer Mouse Designs

A Computer Mouse is a simple Input device for the computer.It is a pointing device used by the computer user to point to different software icons and applications for running those applications by clicking buttons and using the scroll wheel on it.Some creative and unusual mouse designs are shown below:

Some Creative Motorcycle Sidecar Designs

Sidecar is a one-wheeled small car attached to one side of the motorcycle or scooter,usually for one passenger.The sidecar attached to the motorcycle or scooter produces a three-wheeled vehicle.Here are images of some creative sidecar designs: 

Ferrari Motorcycle Sidecar

Some Pimped Out School Buses in Japan

Here are some modified school buses,shown below,for Japanese children.These buses have been modified to make them look attractive to school going children.