How have computers changed our lives?

Computers have come a long way since their invention in the early 1800s. They have changed the way we live, work, and play. Thanks to computers, we can now do things that were once impossible. There are many different makes and models of computers these days, such as HP or Dell computers in Sri Lanka, which are used for different purposes.

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How did computers come to be and what were they originally used for?

Computers were first invented in 1812 by Charles Babbage. He created a machine called the Analytical Engine, which could perform mathematical calculations. However, his invention was never completed.

In 1937, John Atanasoff and Clifford Berry developed the first electronic computer, called the Atanasoff-Berry Computer (ABC). However, this claim is disputed by some people who say that Konrad Zuse’s Z-machine was actually the first electronic computer.

The first computers were used for military purposes during World War II. They were also used to calculate missile trajectories and other complex mathematical equations.

Over time however, computers have come to do much more than that. They are now used for a vast array of activities, including:

Communication: Computers have made communication much easier. Emails, text messages, and social media platforms all allow people to communicate with each other quickly and easily.
Entertainment: Computers provide users with access to a wide range of entertainment options, including movies, TV shows, music, games, and more.
Education: Computers play a critical role in education. They are used for everything from taking notes in class to doing research for assignments.
Work: Many people now use computers at work. The best corporate laptops in Sri Lanka can be used for tasks such as writing reports, creating presentations, and managing databases.

What are the different types of computers and how do they work?

There are many different types of computers that work in different ways and are used for different purposes. These include:

Desktop computers: A desktop computer is a type of personal computer that typically sits on or near your desk. It has a large screen and a keyboard and mouse connected to it.
Laptop computers: A laptop computer is a type of portable computer that you can carry with you. It usually has a smaller screen than a desktop computer, but it also has a built-in keyboard and touchpad.
Tablet computers: Tablet computers are small, lightweight devices that have a touchscreen display. They typically run mobile operating systems such as iOS or Android.
Smartphones: Smartphones are handheld devices that have many of the same features as tablet computers, but they also include phone functionality.

How do these different types of computers work?

Desktop computers use what is known as the “x86” architecture, which is a type of microprocessor. Laptop and tablet computers use different types of processors that are designed for low power consumption. Smartphones typically use ARM processors, which are also used in many other portable devices such as digital cameras and e-readers.

The first computers were large, expensive machines that filled an entire room. Today, you can buy a computer that fits in your pocket for far less. The price of computing has come down over the years due to increased competition and the development of more powerful and efficient processors.

Computers have also become faster and more reliable over time. In addition, they now come with a wide variety of pre-installed applications and programmes that can be used for a variety of purposes. You can also find millions of free applications and programmes online that can be downloaded to your computer.

How has the use of computers changed over time, from business to personal use cases?

To say that the computer has changed over time to the machine we use now is an understatement. The first computers filled an entire room and weighed tons. The development of the transistor in 1947 made way for miniaturization and integrated circuits, which is what led to handheld devices such as the iPhone. Many laptop computers these days such as Dell and Lenovo computers in Sri Lanka, come in varied sizes to suit different purposes.

The computer has been shaped into its current form by our wants and needs as a society. For businesses, early computers were used for accounting and bookkeeping. By the late 1960s, companies were using computers for data processing, reservations, inventory management and payrolls.

As time went on, personal users wanted access to these same tools that businesses had at their disposal. So, manufacturers created versions of these applications that could be run on home PCs. This allowed people to do things like balance their chequebooks or create budgets from the comfort of their homes.

Today, the computer is an essential tool for both personal and professional use. We rely on them to stay organized, productive and connected. From online banking and shopping to managing our calendars and contacts, computers play a vital role in our day-to-day lives.

Here are just a few of the ways that they have changed things for the better:

Increased Efficiency – By automating routine tasks, computers allow us to be more efficient with our time. For example, by using software to track inventory levels, businesses can avoid running out of products or having too much stock on hand. This reduces the need for manpower to physically oversee these processes, freeing up employees to work on other tasks.
Greater Connectivity – The internet has given us the ability to connect with people all over the world, regardless of geographic location. We can now communicate with others in real-time, share information and ideas instantly, and buy and sell products without ever having to leave our homes.
Increased Knowledge – With access to an endless amount of information at our fingertips, we are able to learn new things more quickly and easily than ever before. Computers have also made it possible for us to do research on virtually any topic imaginable, making us smarter and better-informed citizens.

What are some benefits of using computers in our lives, and what are some drawbacks?

The benefits of using computers are vast and varied. These benefits include:

Increased efficiency.
Greater connectivity with others.
Access to knowledge and information.
Increased productivity.
Ability to perform multiple tasks at once.

However, as with anything else, there are also drawbacks to using computers in our lives. Some of these drawbacks include:

Addiction to computer screens and the internet.

Decreased social interaction due to lack of human contact.

Negative impact on eyesight from staring at a screen for long periods of time.

Health problems related to prolonged sitting or usage of incorrect posture when working on a computer.

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Do You Feel Used by Computers?

A look at second-user computer equipment.

Let’s dispense with the myths first. I’m NOT talking about the sort of second-hand computers you get from some high street junk shops, or the sort you can buy from free ads newspapers. These are the types that get used computers a bad reputation since there are many dodgy deals to be had!

I’m talking about a different breed altogether,Guest Posting the sort of used computers you’d be proud to own and feel safe buying because they have proper and lengthy warranties on each and every one of them and have been extensively tested and approved.

The criterion is quite strict. Sure, there are any number of companies out there who offer used computers at low prices. Very few offer 12-month warranties however and many of them disappear just as quickly as they arrived leaving you with a problem. All computers, no matter which category they fit in, or what you call them, should be high quality, guaranteed, fully working computers from a reputable supplier.

So, let’s put all the computers into two categories, I’m going to call them ‘used’ and ‘unused’ computers.

1. Used Computers

Second-hand, second user and used computers are what you would expect in that they have had a previous owner. Many of the computers have been returned to the company from which they were bought in the first place. This is ideal as the company has the appropriate expertise and spares already in place to correct any faults they find.

There are a number of reasons why computers are returned:

- businesses, colleges, individuals etc upgrade their computer equipment for the latest model

- the equipment was leased over a set period and the lease expires (so the equipment is returned)

- the computer gets a fault that can’t be fixed quickly so it is swapped permanently out for a new one

- the customer changes their mind just after purchasing

As you can appreciate, ‘used computer’ can mean anything from ‘barely used’ to ‘a couple of years old’. However, once returned the computers go through a rigorous check procedure, have their hard disks cleared or changed, have new keyboards, mice and cables if worn and new cases if they have noticeable damage. If there are any faulty components, such as sound card, video card, floppy drive etc, these are always replaced. These computers are often referred to as ex-lease, open-box, returns, refurbished, reclaimed, remanufactured, rebuilt, recycled, recertified or reconditioned computers. Phew!

At worst, the used computers, as sold on to you, have minor blemishes, scratches, dents or wear. This is always just cosmetic and does not affect either the performance or value of the computers in any way. What you receive is a fully-working computer, the same working condition as new, but at a price well below that of new. You can often pick up recent high-specification models second-hand and save hundreds of pounds. Of course there are lots of bargains to be had whatever model or type you decide to purchase but note you will sometimes find it difficult to get anything as stock can go very quickly some weeks.

2. Unused Computers

The other main categories of computers are the overstock, surplus, liquidated, superceded, discontinued, open box or end-of-line stock. These are all basically the same in that they are all UNUSED computers. So these are not what you would really classify as second-hand, ie they have not personally been owned and used by any business, college, individual etc. They will often be in their original packaging.

The reasons why these computers come on to the market are because:

- a manufacturer has brought out new models and wants to get rid of the ‘old’ superceded stock in his warehouse

- a store wants to raise some urgently needed cash and sell his unsold stock

- a factory or store becomes bankrupt and the computer stock is sold

In most of these cases, the stock gets sold to specialist dealers who buy in bulk and who then sell it on to the public, businesses etc. They then either provide a new warranty themselves for the equipment, or ensure there is a full warranty from the original manufacturer. You’ll often find Toshiba, HP, Compaq and other brand name computers offered with a 12-month warranty from the original manufacturer. Note that sometimes suppliers refer to open box as meaning refurbished – they will usually state in the description what they mean.

So that’s it. Two main categories of computers, quite different from each other but both offering great deals on branded equipment. Either way you will save money and still get a peace-of-mind guarantee on your computer purchase.

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