Archive for the ‘Peripherals’ Category

Personal Computers and the Internet

Windows 7 on an iPad
Image by Jeff Henshaw via Flickr

There are a number of points of view when it comes to determining the future direction of how the average consumer will most commonly interact with a personal computing device, whether it be the next 5, 10 or 20 years. When Bill Gates revolutionized the PC industry with the development of software, or Windows operating system, designed to run over the already prevalent DOS, this heralded a new beginning in the way a vast majority of people interacted with computers.

Windows rearranged the interface of where man meets computer, although some controversy exists as to where this new template, or designed originated. Many claim Gates borrowed the idea for Windows from Steve Jobs, founder and developer of Apple’s operating system – also window-based. Nevertheless, Gates introduced the concept to an already established market of IBM / PC users. This brought Microsoft towards the forefront in personal computing innovation and near monopoly of what software ultimately made it and succeeded in the marketplace of Windows-based PC products. This includes the emergence of Internet Explorer web browser, a software that eventually eclipsed the original innovator and one-time market leader, Netscape. Another example is the MS Office Suite that also eventually too market control from Corel’s Wordperfect Suite.

Yet, as IBM and DOS gave way to Microsoft and a whole new generation of cost-efficient PC manufacturers, so now it seems that Microsoft is giving way to the next wave of innovation in PC computing. What may have started as the simple and even inconspicuous success of the Apple iPod in music players, has eventually morphed into a world-wide rush and huge market acceptance of similar Apple products such as the iPhone and iPad that once again have revolutionized how the general public interacts with personal computing devices. Only this time not so much in the manner of a desktop PC limited to productivity software, but by way of highly mobile, multimedia, productivity and internet search capable devices.

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Cloud Computing

Diagram showing overview of cloud computing in...
Image via Wikipedia

When considering the future of the information age, many experts agree that the cloud, in this case, is not a bad thing and indeed the future looks bright. Computing, as we currently know it, is predominantly defined by client to server relationship, where for example a number of client terminals, or personal computers, are connected and reliant upon a server for local area network communications and sharing of data but not reliant on that server for individual software and, or application needs. The personal computers in this case are the clients and the server simply serves as the center for interlinking and sharing of multiple resources and data between each client. The server is also generally physically located in the same place as the clients.

Cloud computing is an evolutionary step from the client-server relationship to one where, though servers are still involved as the central node for interconnecting multiple users, the servers are 1) no longer physically located in the same space or building as the clients or users 2) do more than interconnect and facilitates sharing of data and resources but also store the software or applications used by each client or user and 3) are third-party owned and operated, where the clients, or users in this case, pay to access the server on either a utility basis (charge for resources consumed) or a subscription basis (fee for a predetermined amount of time of access).

The users in the case of cloud computing are also an important aspect to note in comparison to the client-server relationship. Users in the case of cloud computing are not limited to personal computers or desktops – users can be any device with connectivity and interface capabilities that allow it to communicate with the server where the desired application or data is stored. These devices include PCs, tablets, mobile phones, PDAs and more.

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Hardware Basics

The days when computer usage was limited to scientists and wealthy individuals are long gone. There have been more than one billion personal computers in use around the world since 2008 and it is believed that the number will reach two billion by the middle of this decade.
Each day more people are learning how to perform basic computer operations. Some are adults who’ve finally succumbed to the fact that computers are here to stay, and others are the current generation of America’s youth. Many grade school students know how to type up homework assignments in Microsoft Word, research a word’s spelling in online dictionaries, and send emails to their grandparents who spend six months each year living in a retirement community in Florida.
While many people are learning these simple computer functions, many of these same people are unaware of or don’t acknowledge what the basic parts of a computer are.
The first important point to make is that the physical parts of a computer – the components that you can actually feel and see – are grouped together in one category and referred to as hardware. In general, a computer, namely a desktop setup, has the following hardware components:
- A screen/monitor, the part of the computer where the user can see what he or she is typing or reading. It is the output visual display.
- A speaker system, the part of the computer that outputs sound to the user. The speakers can be built within the monitor or can be a separate attachment.
- A mouse, which has two buttons and is a means for the user to navigate around and interact with the computer.
- A keyboard, which is only utilized when the user needs to input text into the computer. Using a keyboard, like a mouse, is second-nature for most computer users.
- A system unit, which consists of a floppy disk drive, a CD drive, and a hard disk drive that is stored inside the actual unit. Of the basic hardware components, this is the one most users know the least about.

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Power Management

Knowing for when and how long to program your computer and other accessories in power management is an important consideration for regular computer users. Too often people leave their computers running, usually with the monitors turned on, and have a screen saver on their screens for several hours, if not days, without powering their systems off.

However powering the average flat screen monitor off will save 25 watts of power per hour. Multiply this by the number of hours your monitor lies awake, even in screen saver mode, and it adds up. As a matter of fact, the U.S. Department of Energy has noted that approximately 75% of the electricity used to operate home electronics is actually consumed when these devices are "turned off." This means that more than half, three quarters of the energy consumed by home electronics is wasted.

It is not a small percentage of electricity that is consumed as a result of not powering off our electronic devices. It is actually a majority of the energy used that is wasted. So what can the average person do in order to be less wasteful and more conscientious about energy consumption when it comes to home gadgets? For starters, instead of walking away from your computer, put it on suspend or stand-by mode. This will lower energy consumption on a laptop computer from 60 watts when being used to 25 w when it is idle, down to 1.6 w when in standby mode! A simple click of the mouse will conserve nearly 20 times the energy used versus doing nothing at all.

Another way to conserve on energy is to have all of your electronic devices connected to a power-strip, and at the end of the day simply flip the switch on the power strip, versus turning each device off. There are also programmable power-strips available that will turn themselves off.

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Selecting a Keyboard

QWERTY keyboard, on 2007 Sony Vaio laptop comp...
Image via Wikipedia

Owning and operating a computer involves much more than the size of the screen, number of components or even the size and speed of the processor. While these are important and often the most marketed features of any computer, there or other considerations a prospective buyer should include when making a final decision on what computer to buy.

One particular component that a computer user should never overlook is the keyboard. This crucial input device is what most of us will spend 80 – 90% of our time physically interacting with. The mouse being the other device most often used. There are some uses that might require a number key pad for example,where numbers 0-9 are organized in a three row by three column fashion for quick inputing of number data. Thereby purchasing a laptop with a more compact keyboard that excludes this feature might not be the best choice.

Another feature often overlooked is ergonomics when deciding on a keyboard. Ergonomics here refers to the fashion in which this device fits, or molds to the natural angles of your body when interacting with the device from you computer desk, for example. Certain adjustments are often made from a desk such as the chair height or height / availability of a keyboard tray. These are done in order to place the keyboard at the proper angle in order to ensure that the wrists access it properly and thereby decrease the likelihood of carpal tunnel syndrome.

Certain keyboard manufacturers have even taken the shape and design of keyboards a step further for purposes of ergonomics by altering the location and angle of the keys. Some ergonomic keyboards are raised in the middle and changed the angle of the keys in order to present them to the hand in a way that allows for a more natural angle of access.

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Laptops

It doesn’t seem that long ago that laptops were first introduced. The portable equivalent of a desktop computer, laptops revolutionized computing on the go. Business people requiring to take their work with them could now do so, working remotely, without having to carry files of portable storage media. Simply unplugging and packing their laptop computers, work could be done on the same system from anywhere in the world.

Of course, this would always run the risk of damage to your computer, so adequate back-ups of critical information would often be required in order to prevent data loss that could easily jeopardize your primary computer terminal. Nonetheless, portable computing is here to stay and has only evolved into a number of other electronic gadgets with equal processing capabilities of the laptops of yester-year.

Laptops have become lighter, more powerful and efficient. Batteries have also become smaller and more capable of keeping their charge for longer periods of time. It is now common for people to own both a desktop and laptop computers of equal processing and RAM memory capabilities. Most laptops now ship with built-in web cameras for capturing video feeds and video conferencing over the internet.

The next step in mobile computing has become most evident within the smartphone sector, where mobile phones are now sold with applications capable of managing multiple email accounts, texting, surfing the internet, and running thousands of applications capable of performing many of the functions that we commonly rely our computers to handle. Another portable computing device growing in popularity is the tablet PC or pad computer. These seem to be growing in popularity among users interested in a less bulky device with the similar display size of a comparable laptop computer. In many cases, there is no keyboard attached and are thereby equipped with a touchscreen to operate.

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The Internet: Accessing It with the Right Hardware

Getting on the Internet is one of the most enjoyable things to do on a computer. Whether you’re checking your email, reading the news, or having fun playing a game or chatting on a social media site, there’s always something to do. There are a lot of different ways to get on the Internet, as well, and which one you use will depend on several things. Price matters, as do the options you have based on where you live. Another thing that will affect how you get on the Internet is hardware. If you have a regular, dial-up modem, you’ll need to access the Internet by dialing a particular phone number. These kinds of connections used to be very common, but they aren’t very popular anymore. They’re slow, they tie up your phone line, and they frequently disconnect, making using the Internet very frustrating.

Modems are also available for DSL and cable. These are a lot faster, and they are ‘always on’ connections – meaning you don’t have to dial into them. You just open your browser, and the Internet is waiting for you. These kinds of connections cost more than dial-up, but most people think that they are well worth it because they’re so much easier to deal with. Being very fast, they let you browse the Internet and read the things that interest you. They also don’t just disconnect like dial-up connections, so they’re more secure and less aggravating.

You can also get Internet by satellite. Depending on whether you do this through a company that puts a dish on your roof or whether you have satellite TV and use that dish, the price can really vary. The company you use can affect the price, too, so shopping around is important. With any Internet access, ask questions and compare prices. One type of access may be cheaper, but will it do what you want? What about comparing two different companies that offer the same type of Internet service? That can also greatly affect how much you pay and the quality of the service that you get.

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Desktop or Laptop: Which Computer Hardware is Right for Your Business?

Many people think of businesses as needing these huge banks of computers, but that’s simply not the case anymore. Instead of needing that much space, businesses can now do a lot of their work through cloud computing. When they do that they need a lot less hardware, which saves them money. For your business, the biggest computer hardware decision will likely be whether you want a desktop computer or a laptop. The nature of your business will often dictate that. If you (or your employees) are stationary and in cubicles or at desks all day, a desktop model will work well. While it takes up more space than a laptop, it can also be upgraded as need be so it can hold more information and so it can be faster. Laptops generally don’t have those kinds of upgrade options quite as easily – and sometimes not at all, because of their limited size.

For employees in the field or business owners who travel a lot, a laptop computer may be a much better choice. A desktop computer isn’t designed to be moved around, but a laptop can just be picked up and carried off. It can go with an executive on a business trip, an insurance agent who’s arriving to handle a claim, or a writer who just wants to sit outside in the sunshine while he works on that latest article. Laptops are very versatile, which is why so many people like them. They provide convenience, and they can do most of what a desktop computer can do.

If you’re unsure about which one to get, think carefully about what you’ll be asking the computer to do, whether you’ll need to move it, and what kinds of expansion capabilities you need it to have. By looking at the largest factors that will affect your choice, you should be able to tell which computer hardware will be right for your needs. Consulting with the professionals never hurts, either, especially if you aren’t certain what kind of price range you should be looking in or exactly what features you need.

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Wireless Input Devices

Xbox 360 TID 024
Image by gamerscoreblog via Flickr

The business of making computers user friendly has been and still is a major focus of computer manufacturers around the world. This concept reaches beyond components, hard drive space, memory size or display clarity. Every user, particularly those that interface with computers as part of their work or study, are limited to two primary input devices – the keyboard and the mouse. Of course there also exist microphones for voice activated software and video cameras that also qualify as input devices, but so far as the input of hard, usable data, most users around the world rely on these two primary methods of input.

Keyboards and mice started out as fairly ordinary accessories for computer use. Keyboards were mostly basic, rectangular shaped components large enough to replicate the size and feel of traditional typewriter keys. As capabilities for connecting to computers evolved beyond serial input cables and the reliability of wireless connectivity improved, keyboards, as well as mice, began to take advantage of these added benefits in PC technology. A typical wireless keyboard is the exact dimensions and shape of a normal, non-wireless keyboard. As a matter of fact most wireless keyboards are simply the wireless version of a standard USB-wired equivalent.

These keyboards, and their associated mice, have generally an operating range of up to six feet. This allows the user to avoid a potential tangle of wires in their workspace, as well as the flexibility of typing from a distance not normally afforded by a non-wireless keyboard. Some people enjoy this flexibility particularly when using a non-traditional workspace, such as their television as a display device. Thus with a wireless keyboard and mouse, they are able to operate their computers from their sofa, for example, at a distance far enough away to enjoy the wider viewing area of their television or other projection device.

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Buying the Right Computer Hardware for You

Everyone always talks about the new software they got for their computers, but what about hardware? It seems like it gets neglected in conversation, but it’s really very important. The processor speed, the memory, the size of the hard drive, and other factors all matter a great deal. What you’re trying to accomplish with your computer will affect what you need in the way of hardware. Desktop computers, for example, often do more than laptops. They have more computing power in many cases, and they simply have more room for hardware to be added to them. When you have a laptop, what you buy it with is pretty much what you get. There isn’t room to add anything inside. If you want a larger hard drive, it’ll need to be external.

For some people, that’s just fine. Others don’t like that idea, and they want to have everything in one neat package. You’ll have to consider what matters the most to you when you’re buying a computer. If you do decide to add or change hardware later on, it’s a good idea to have an experienced person do it if it involves opening the computer’s case. It can be risky to take the cover off of a computer, because there’s so much that could go wrong on the inside. There are areas you just shouldn’t touch, and ways you can damage the computer even if you’re being very careful.

If you do decide to upgrade or replace internal hardware yourself, make sure you find out how to do it properly and follow the instructions carefully. Go slow. It’s not a race, and you won’t win a prize for completing it in the fastest time. Ultimately, what matters is that the computer works properly when you’re done. That’s much more important than whether it takes you fifteen minutes or three hours. If you run into a problem, consult a professional so you don’t make the problem worse. When you plan and pay attention, handling computer hardware is much less difficult.

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