Browsing Tag

functions

The Humble Computer Mouse

The choice of computer mouse is a very individual thing and depends on many factors:

  • How many hours a day you work at your computer?
  • Is your primary computer a desktop, a laptop or notebook or even a tablet; but you won’t be needing a mouse if it is a tablet, will you?
  • How big your hands are.
  • Do you want/need to use wired, wireless or bluetooth?
  • Whether you use the scroll function or not.
  • Do you suffer from wrist pain?

In some of these instances, the cheaper type mouse that comes with your computer will serve your needs adequately, but if you, like me work for about eight hours every day, the comfort and functions of your mouse are particularly important.
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On the left below is a photo of the first mouse I paid in excess of $60 for and never regretted it at all. It was comfortable in my largish hands and I didn’t ever suffer any wrist pain even though I worked at my PC sometimes up to 12 hours in a day. The day I dropped it on the tiled floor and broke it was a very sad day for me.
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Luckily I was able to buy another different model  but with the same profile within a couple of days. That one too has died lately so I’m looking for a new one, the Kensington mouse on the right below might well be the one since I have had a word in Santa’s ear!
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The logitech 2nd from left has served as my laptop mouse for a couple of years – it does look a bit battered, doesn’t it? Very similar profile and quite comfortable. The third photo shows my big hands – imagine my right hand wrapped around one of these tiny mobile models! However, I do carry a retractable one around in my laptop bag, as a backup and the occasions when an extra mouse is needed to test someone’s computer.

 History of the computer mouse

Tracking Technology

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Did you know that the name mouse is derived from “Manually Operated User Select Equipment”? This makes the argument about whether more than one computer mouse should be called computer mouses or computer mice (as we do for the rodent variety). It seems there has been no absolute ruling and generally computer companies avoid the issue by calling them mouse devices. Probably mouses is technically correct, but it sounds awkward and people tend to use mice for the plural form.
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The original design for a mouse was mechanical; the mouse had a ball in a compartment underneath and embedded around the edge were some little rollers. These would clog up from the dust and dirt from the user’s desk and needed cleaning to keep the mouse running smoothly (I did this countless times when clients or friends complained that their mouse wasn’t working properly). There were also four sliding type feet that clogged up as well, but these devices were a boon when the alternative was just keyboard shortcuts.
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Along came optical technology and made our lives so much easier. A small LED on the bottom of the mouse translates the movement of your hand into movement of the mouse pointer. Laser mouse devices work the same way, but using a laser instead af the LED. Laser mice have a higher dpi (dots per inch) which means they are more sensitive. For general users this extra sensitivity is not really needed, but graphic designers and gamers often appreciate the difference and make a laser mouse their choice.

Wired Connectors

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The early mice (see above) had a serial connector plug, see picture below. Serial ports were the original standard for interfacing any device with any other device on a computer. Later, a smaller 6 pin Mini Din was introduced by IBM on their PS/2 personal computer and this led to the connector type being called PS/2. For many years PC’s had PS/2 connectors for both keyboard and mouse.
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Some computers still come with two PS/2 ports, but more commonly they just have one, the USB (Universal Serial Bus) being the most common type of interface on all computers, whether PC or Mac. All USB ports look the same, but there is the original USB 1.1 and USB 2.0 which allows much faster (almost 40x as fast) or increased delivery capabilities. The ports are backwards compatible, so you can plug an old USB 1.1 device into a 2.2 port and it will still go.

Wireless

Originally the mouse device was connected to the computer by a cable using one of the technologies above, but nowadays you have the choice (an increasingly common one), to go with wireless. The early hassles of wireless connections seem to have been ironed out and wireless usually works very easily on any platform. Yay! So much more freedom.

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Radio Frequency – this is the most common type of wireless interface. A generic mouse operates on th 27MHz frequency and the mouse is powered by batteries. More expensive models can come with rechargeable batteries or charging docks for the mouse. They may use higher frequencies and have a longer range.
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bluetooth.
Bluetooth was useful for lower speed devices like a mouse and was common on early laptops. They are also battery powered and use the 2.4GHz radio frequency to communicate with a receiver/charger supplied with the package or some other Bluetooth adapter...
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RFIDRFID (Rapid Frequency Identification) technology uses radio-frequency electromagnetic fields to transfer data to automatically identify and track tags, which for a mouse is movement. Developed by a company called A4Tech, the mouse must be used in conjunction with the included mose pad, but the advantage is that it is wireless and no batteries are needed.
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Wheels and Buttons

Nearly all mouse devices nowadays have three buttons, with the middle button also being a scroll-wheel. This scroll wheel is essential in my opinion to navigate up and down your screen and on web pages. Any other buttons, typically on the left hand side for a right handed mouse or on the RHS for a left handed mouse, can be programmed by the user to carry out different functions.

 

Buying a computer mouse

A quick search on eBay will show just what a variety of choice there for buying a new mouse – some are fun, some are fancy, some for serious gamers and some ergonomic models for users like me. So how do you choose?

Narrow down the options with these requirements:

  • Do you want wired or wireless?
  • Do you need laser or will Optical suit your needs?
  • What size – full-sized, medium or small (also called compact,  mini, mobile, laptop etc)
  • PS/2 or USB? USB is more common but if your computer does not have many USB ports, but does have PS/2 ports, using a PS/2 mouse (or keyboard) will leave an extra USB port available for other peripherals.
  • Scrolling – do you need left and right as well as up and down?
  • Buttons – does your work (or play) require advanced features?

A great place to see what is available is on eBay, even when you want to shop locally. The wide variety of mouse devices listed there will give you a good idea of all the functions and help you narrow down your choice.
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I have a mouse collection on eBay, just for the fun of it – see some of my pics

See my Collection here http://www.ebay.com/cln/plfbus/Fun-Fancy-Mouse-Collection/66866785015

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New Google + 1 button

With the popularity of facebook with its “Like” & “send” functions and Twitters “Tweets”, it was only a matter of time before Google jumped on the bandwagon.

Google’s +1 button works pretty much the same as the “Like” & “Tweet” buttons that are now so familiar and the good news is that with wordpress plugins now available for it, installing Google’s +1 button is so very very easy. There are several configurations to choose from to fit the style of your pages.

Rather than going through it all with you, follow the links below to Gail Bottomley’s blog; Gail has a lot of info about it (and other things!) in the first link; the second link takes you directly to an excellent video showing you exactly what to do to install it.

http://go2my.ws/t/GPBlog.html www.gailbottomleyonline.com/google-plus-1-button

http://go2my.ws/t/GPBlog.html

Thanks Gail!

 

Keeping your Brain Active

Free Gift Membership to “Learning to Earn” see below.

If you’re approaching retirement age and wondering what you can do to enjoy a long and healthy life in your golden years then consider adopting the attitude of a lifelong learner. Most people think of lifelong learning as being confined to academic endeavors however the lifelong learning approach covers all areas of life including spiritual, social, academic and physical.

Lifelong learning is based on an attitude of constantly growing and evolving in various areas of your life. The old saying that whenever anything is not growing it is decaying could be just as true for us as humans. No matter what a person’s age there are great benefits to be gained by challenging yourself in the different areas of your life, physical, mental and self-deveopment.

Physical challenges must be appropriate for your level of fitness, but regular exercise of some kind will leep your body healthier and your brain healthier too. Mental challenges do not have to be academic study, they can be a new hobby or interest, a new caring or chrity venture, more involvement with family. The most growth in personal development will come when you take on something that is currently outside your comfort zone (nasty words those, aren’t they? How we love to stay in our comfort zone, even when it isn’t all that comfortable really).

Lifelong learners live by the motto “you’re never too old to learn” and this attitude is a big part of the reason that people who approach life with this mindset are seen to perhaps live longer but definitely enjoy a better quality of life – is the so-called law of nature known as the “use it or lose it” true?

It does seem to be the case that those who are considerably inactive develop mobility problems as they age, whereas those who are quite active do not develop these mobility problems. A similar effect takes place with anyone who takes no part in any mentally challenging activity or pursuit. After years of mental inactivity

Brain Training Can Improve Your Memory

banner_brainAll of us, in a certain point of our lives, experienced memory loss. It could be forgetting where we put the keys, if we have locked the door, etc. As we grow older, it is natural for some of our brain cells to age and die which would cause some problems with memory. Over the years, research on brain training showed that it could help in decreasing memory loss.

Dementia is one of the biggest health issues that the older generation is facing. Currently, about 24 million people are suffering from dementia. By 2040, the number could reach about 84 million of sufferers, making us one of the possible patients of dementia.

The same goes for Alzheimer’s disease which is affecting about five million Americans. Health experts project that Alzheimer patients could reach about 16 million by 2050. That is until the current generation would do something to avoid such problems with memory loss.

How does brain training help us in enhancing our memory?

Computer Crash! Prevent Loss of Your Valuable Data

Have you ever had a computer crash and all your data was lost?

Most likely your computer’s hard drive failed & this happens more frequently than we’d like and for all sorts of reasons. Another major risk to your data is fire, flood or theft. The following strategies will help you to protect and recover your data.

Although the software files for the programs that run on your computer is also data, you don’t need to back that up as it is easily recoverable from the installation disks you received when software is purchased.

The data that we will focus on is “user” data specifically, the data that you create from the software programs that run on your computer.

For example, if a word processor is used to create a document or a letter, the word processor provides functions to save this data. The data that is created and saved through the word processor is “user” data. Most programs will create and save data somewhere on the hard drive.

There are many kinds of user data that are usually stored on the hard drive, do you have some of these?

  • letters you write in a word processors
  • flyers / posters for your clubs
  • business cards
  • spreadsheets
  • greeting cards you’ve made
  • accounting data from a money management program
  • picture files
  • music files
  • video files
  • email and email addresess

This is not a complete list, but to give you an idea of what you might have created and could lose if your computer crashed or in a fire or theft. Most people do not pay enough attention to this basic fact about computer systems until it’s too late. Don’t let this happen to you!

Remember, the key is “prevention” and in order to prevent loss of valuable data you must be prepared, so let’s look at some basic backup plans.

Option 1: Save your data to CD or DVD disks
This is by far the cheapest option and a very good approach to securing user data, especially if you don’t have too much. All that is needed is a CD or DVD burner and some blank disks, which cost very little these days.

When using this option, make two copies so that one of the copies can be stored off site, to protect you against fire, flood & theft. Another reason is that a CD or DVD backup can also become corrupted & it’s better to have two or more copies.

Option 2: Use a memory stick (USB stick)
This will cost a bit more than option 1, but USB sticks are getting cheaper & cheaper all the time, and holding more data as well. One advantage is how small they are and easy to carry around. I bought a waterproof one when they first came out for my client’s data and was very glad I did so, as it went through the wash twice and still worked fine! (I did have other backups though & I still use that drive today!.)

Option 3: Consider having two internal hard drives, especially if you have a lot of user data, especially big pictures or music files.

Most home computers generally all come with only one internal hard drive, which stores both software and user data. This means that this one single hard drive is experiencing a lot of wear and tear. Every time a program is launched it’s being accessed. Every single function that the operating system invokes will likely hit the hard drive etc. This heavy wear and tear can eventually lead to physical failures.

Also, many viruses are designed to hit the operating system & if the user data is on the same physical drive as the operating system, then it can be severely impacted by viruses as well. The disadvantage of this method is that it doesn’t protect you from fire, flood or theft, etc, but it is probably the easiest way to automate backing up your files.

Option 4: Attach an external USB Hard Drive to the system

With the price of hard drives getting much cheaper, this is another really good option. By attaching an external USB hard drive to the system, special backup programs can be installed and scheduled to run over night. There are many cost effective backup programs available. Some will be built into your operating system and others are available free – search on the internet and you’ll find plenty of options. The advantage of the external drive is that your work is still physically separated from the main hard drive and can be taken off-site with you.

Option 5: Online backup service
The services are fairly inexpensive (typically about $5 a month), and the best ones won’t noticeably slow down your PC use or Web browsing (after the initial large upload, at least). They also encrypt your data before, during, and after it’s been sent to industrial-strength servers. There are no discs or USB drives to worry about, either. The service can start processing and uploading files automatically on a schedule or in the background when there are enough free cycles available.

How often should you make backups?

This really depends on what your data is. If you are only using your computer for emails and writing letters, perhaps once a week is sufficient. When you’re doing work for someone else, it’s wise to keep doing incremental backups as you go, every ten minutes, every hour perhaps. It’s a decision you need to make for your personal circumstances. I personally do my backups before I go away from my work area and every night. The main thing is, remember to DO IT!

Summary

  • You need to backup your user data in case of computer crash or fire or theft
  • Back-up frequently, as often as needed to make it easy to restore your work to where you were
  • Use at least two different methods
  • Keep one copy of your backup data away from the computer (prevent loss if fire or theft)

Hopefully this helped you become more aware of the importance of your data and the need to back it up.

The options presented here are the very same methods used by many highly experience data processing centers and can be easily adopted by the average computer user. The most important point to remember is that good planning for potential disasters is the best protection against loss of valuable user data. You may not think of it this way at first but the user data that you accumulate on your computer takes time to build up and acquire.

If you value your time then you’ll value your data. Your data has a lot of value. So why not take a few simple steps to protect it.