The Past And Present Of Computers

Computer (computador) is an appliance which can manipulate data in accordance with a list of instructions. It is a type of data processing system.

Today the computer (computador) has become indispensable in every household and comes in numerous physical forms. The first modern day computer was developed in the mid-20th century, though the concept of computer (computador) and various similar machines existed before. It actually started in 1837, when `The Analytical Engine`, the first fully programmable mechanical computer, was designed by Charles Babbage.

The Earlier versions were huge and bulky and used up a whole room. The device EDSAC (Electronic Delay Storage Automatic Calculator) was one of the very first computers that could implement the stored program architecture. In comparison to them, modern computers (computador) have tiny integrated circuits and are much better in terms of capacity and speed as well as accuracy. Today`s tinier version can even fit in your wrist watch and are powered from the watch battery. Personal computers can be found in almost every house today and in various forms. They are in fact the icons of the information age.

What makes computers (computador) highly versatile and distinguishable from other appliances is that it can be programmed. A calculator can only calculate, just like a washing machine can only wash, but a computer can be programmed to do any kind of job. Software programs are a list of instructions that can be stored and executed by the computer.

A general computer (computador) has four major sections, the arithmetic and logical unit or ALU, the control unit or CU, memory and the interface for input and output devices. These parts of computer are interconnected by busses. The ALU, control unit, registers, and the interface for input and output devices are collectively known as the central processing unit or CPU. The Early CPUs used to be composed of different separate components, however since the 1975; the CPUs are being constructed on a single integrated circuit, the microprocessor.

The ALU is for arithmetic and logical operations of the computer while the control unit is for directing the various parts of a computer (computador). Its job involves reading and interpreting the instructions of the programs one by one and converting them into control signals for operating other parts of the computer.

The earlier version of computer (computador) used Magnetic core memory but today it has been replaced by the semiconductor memory. The main memory of Computer is divided in two parts, RAM or random access memory and ROM or read-only memory. RAM can be written and read anytime through CPU commands. On the other hand, ROM is pre-loaded with software and data that never changes, and it can be only read by the CPU.

I/O is hardware by the means of which a computer(computador) can receive information from the outside world and also sends back results. Common input devices are the keyboard and mouse. While common output devices include monitor and printer. There are some devices that serve as both input and output devices like Hard disk drives, optical disc drives, floppy disk drives etc.

Internet has literary changed our lives. Today people can search all types of information on various subjects, advertise their company or products pass information to a large group of people and do much more merely by a few clicks of the mouse. Whether you want to search a new home or compare prices of the latest mobile or fill up your college form or read the latest Harry Potter book, everything can be done on the Internet through your computer.

With increase of computers (computador) and its uses, an increasing number of professions involving computers have also developed. Computer-related professions include Electrical engineering, Nanoscale engineering Telecommunications engineering, Software engineering, Web design, Desktop publishing and Optical engineering.

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Roberto Sedycias works as IT consultant for PoloMercantil
Article Source: EzineArticles.com

Top 10 Coolest Accesories to your PC

USB Aroma Therapy

Aroma therapy is one of the latest fads which makes this USB air freshner a must have. This gadget plugs right into your PC’s USB port and can generate three different aromas. Now here’s the cool part, you actually get to choose what scent you want using your computer.

ElekTex Smart Fabric Keyboard

Want a full-sized keyboard that you can roll up and take anywhere? Than ElekTex’s Smart Fabric Keyboard is just what you’ve been looking for, its 100% fabric, water-repellent, and very light (2.4 ounces). It uses Bluetooth technology to connect with compatible devices and even comes with a PDA stand. An embedded LED displays keyboard and Bluetooth connectivity status.

CP-1 USB Spy Mouse

Keep a close ear on your computer with the CP-1. Hidden inside this otherwise normal looking mouse is a condenser microphone - capable of picking up on any nearby conversations. It measures 53 x 95 x 35 mm and weighs just 75g. Source

Multimedia Chair

Hammacher Schlemmer’s “Multimedia Chair” just might be the ultimate gaming accessory, offering two 50-watt speakers (built into headrest), a 300-watt amp (concealed in chair base), and a sound transducer — “the same technology originally used in multimillion dollar USAF flight simulators and theme park rides” — that converts low-frequency sounds into vibrations. One drawback, it costs $799.95.Source

SoundArt Canvas Speakers

If you want to combine art and technology into one device, SoundArt has the answer in its stylish canvas speakers. Just hang it on your wall, plug in your music source and enjoy the space around you. From music to movies the audio options are endless. Almost any audio source can be played through it – your Hi-Fi, iPod, DVD, CD or use the output on your AV system. Featuring one or two canvas speakers, a subwoofer, and your choice of canvas print. One potential drawback, it costs $3700. Source

Folding Computer Bed/Desk

For around $2079, you could buy this nifty folding computer bed. It features gas pistons which assist in the bed to desk transformation and also dampens the natural action of weight transfer. Source

Portable Cardboard Speakers

MUJI, best known in for their innovative yet simple products, has come out with speakers made of cardboard and a few electronic components They ship unfolded in a clear plastic pouch — fold them up and they’re ready to use. Now that’s what we call portability. MoMAstore has them available for puchase now at $42 USD. Source

Optimus Keyboard

One look at the Optimus and you know you’re dealing with something different. This innovative keyboard has customizable OLED keys — program them to launch applications or as hot keys and use your own icons/animations/pictures for a personal touch. Source

Foot Mouse

One pedal controls movement while the other is for the clicks. Pedals are made from an injection molded plastic shell and feature a “360-degree, pressure sensitive mechanism”. Source

SatuGO - Bouncing Digital Camera

This nifty little bouncy ball type gadget is actually a digital camera that snaps 3.0 Megapixel images when bounced. The SatuGO is notable in that it includes 1GB NAND memory and sports a timer/flash so it can also be used as a webcam. Just plug it into your computer’s USB port for quick and easy recharging. Source

Source: www.oddee.com

LAWS OF COMPUTING

1. When computing, whatever happens, behave as though you meant it to happen.

2. When you get to the point where you really understand your computer, it’s probably obsolete.

3. The first place to look for information is in the section of the manual where you’d least expect to find it.

4. When the going gets tough, upgrade.

5. For every action, there is an equal and opposite malfunction.

6. To err is human…to blame your computer for your mistakes is even more human, its downright natural.

7. He who laughs last, probably has a back-up.

8. The number one cause of computer problems is computer solutions.

9. A complex system that doesn’t work is invariably found to have evolved from a simpler system that worked just fine.

10. A computer program will always do what you tell it to do, but rarely what you want it to do.

Source: getamused

YOU MIGHT BE A COMPUTER GEEK IF..

1. At Christmas, it goes without saying that you will be the one to find the burned out bulb in the string of Christmas lights.

2. Choosing to buy flowers for your girlfriend or to spend the money to upgrade your RAM is a moral dilemma.

3. Everyone else on the Alaskan Cruise is on deck gazing at the scenery and you are still on a personal tour of the engine room.

4. In college, you thought Spring Break was metal fatigue failure.

5. The salespeople at the local computer store can't answer any of your questions.

6. You are at an air show and know how fast the skydivers are falling.

7. You bought your wife a new CD ROM drive for her birthday.

8. You can quote scenes from any Monty Python movie.

9. You can type 70 words per minute but can't read your own handwriting.

10. You comment to your wife that her straight hair is nice and parallel.

11. You go on the rides at Disneyland and sit backwards in the chairs to see how they do the special effects.

12. You have saved every power cord from all your broken appliances.

13. You have more friends on the Internet than in real life.

14. You know what http:// stands for.You look forward to Christmas only to put together the kids' toys.

15. You see a good design and still have to change it.

16. You spent more on your calculator than you did on your wedding ring.

17. You still own a slide rule and you know how to use it.

18. You think that when people around you yawn, it's because they didn't get enough sleep, or they're just equalizing air pressure on both sides of their eardrums.

19. You window shop at Radio Shack.

20. You're both in the back-seat of your car, she's looking wistfully at the moon, and you're trying to locate a geosynchronous satellite.

21. Your laptop computer costs more than your car.

22. Your wife hasn't the foggiest idea of what you do at work.

23. You've already calculated how much you make per second.

24. You've tried to repair a $5 radio.

Source: computer jokes and humor

The Internet Blues

My baby's got my 486.
My cellular phone's on the blink.
My fax's gone off to fax heaven,
And Pay For View stinks.
I got the blues, I got the Information Highway bluuuuues.
I got the bluuuuues, I got the Information Highway blues.

I lost my account on the Internet.
My email's been revoked.
My modem's stuck at 300 baud,
And my terminal just blinks.
I got the blues, I got the Information Highway bluuuuues.
I got the bluuuuues, I got the Information Highway blues.

My head spins from Virtual Reality.
I don't have Video on demand.
I can't read my Personal Newspaper,
And Shop At Home has kinks.
I missed the on-ramp, to the Information Highway bluuuues.
I missed the onnnn-ramp, to the Information Highway blues.

Source: computer jokes and humor

Data Protection Software for your Privacy

The advent of world-spanning computer technologies has created an environment in which all sorts of data is easily accessible by almost anyone. How can we be sure that it's safe? Data protection software and technologies exist to protect our privacy.

Today Steganos is a provider complete security software, which addresses all security-relevant Windows issues with suitable products: Whether encrypting hard drives, e-mails or mobile devices, traces and data destruction, anonymization on the Internet, protection against viruses, worms, hackers, trojan horses, dialers, spam and spyware - Steganos has the relevant solution.
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Is your PC Infected with Spyware?

Get All the PC Security You Need – CA Internet Security Suite 2008!


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Computer Associates has a history of leadership and growth. The quality of service and the innovation behind their software has changed the way businesses operate throughout the world. By addressing customer needs, CA has grown from a four-person operation in the mid-1970s to a global presence in Information Technology (IT) management software.

CA - Internet Security Software that is effective, EZ to Use, and affordably priced.