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In the early days of the Internet, many sites advertising “Best viewed with Netscape” or “Best viewed with Internet Explorer” or the like. These days, such labels seem to be rarer. Web designer today put an inordinate amount of effort to promote their sites on the search engines.

The principle of designing the page for compatibility with different browsers, operating systems are as follows.

1. Screen Resolution Issues Design the site with fixed widths. Designing for the 1024×768 screen resolution, will force almost half the visitors to scroll the screens horizontally to see the entire page. Horizontal scrolling irritates a number of people hence many sites try to avoid it. They do this by either designing with a fluid design, where the page automatically fits whatever screen resolution the visitor uses, or by designing it for a worst case screen resolution (either 800×600 or 640×480). Never design the pages more than 800×600 display resolutions. Doing so will probably displease at least half the visitors, who will have to repeatedly scroll horizontally (back and forth) to read the sentences on the page. If, despite this, you feel that you need a fixed canvas larger than 800×600, use a trick: put optional material (like advertisements) in the rightmost column of their web page. This allows visitors to have smaller screens to ignore the rightmost column; they can read the main content without having to scroll horizontally.

2. Color Limitations A color code like #F2C3BC results in different colors on different systems, depending on the number of colors that exist in visitors’ color palettes, their monitors, etc. For example, a color that looks good on a 24-bit color system (“True Color” on Windows, “millions of colors” on Mac), and the visitor goes to your site using a 256 color setting on his system, the color will be dithered to fit into the more limited number of colors in his palette. Use the next lowest denominator, the 16-bit color setting. The 16-bit color palette is not a subset of the 24-bit color palette: apart from black and white, the colors in the two palettes are not identical.

3. Frames Frames can be explained in two points of views: screen resolution and people who browse your site using speech software. One common complaint is that designers using frames usually forget that visitors don’t have the same large screen resolution that the designers have when they created the web page. Sites with frames tend to provide a smaller area for people to view the main content of the site, since the outer frames occupy some of the screen real estate as well. If the web designer has not checked the site using a lower screen resolution like 800×600 and 640×468, and tested its usability with those lower resolutions, the designer may not be aware that the site is difficult to use in such situations. Visitors may have to scroll horizontally and vertically continually to read the content. The situation is worse if the designer removed the scroll bar and visitors find they can no longer scroll left/right/up/down to read the content

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Today’s world mostly demand on computers, the needed of computer increasing day by day, whether in the home or at the workplace. People keep become depend almost wholeheartedly on computer. Now-a-days most people know that how can use computer and use of the Internet, But many people do not know that how they can keep their computer securer and how to maintain it’s performance. There are some general things, which is very important to computer security and Maintenance.

Virus removal help: If your computer keep rebooting without given any indication or any error massage, If Some time you facing problem related to device drivers, like no sound problems with the speaker or sound card. Hard disk problem like data corrupted or its booting problem or Strange character appear in the folder listing of filenames. and some .exe file came up, these all are symptoms of virus infections. You should notice and need to remove them. You should install and scan good antivirus and it’s virus definition files up-to-date. And Scan your whole computer weekly.

Some good Antivirus are:

• Notron
• Macfee
• Awast!
• AVG
• Kaspersky

Protection against Adwares: Adware is a same like as spyware and maleware. It is a programed software that displays unwanted banner ads or pop-up windows with advertisement to promote a website or product. During the Internet browser If your Internet Web Browser perform misbehave and it’s home page changed itself and shoes you a some kind of advertisement, that means you have adware infection. When you get some kind of advertisement pop-ups randomly, even you turn on the pop-ups block option. It is also adware infections.

To protect you computer against advare you should follow these troubleshooting test: 1. Regularly update your window and your anti-spyware and scan.
2. You firewall protection service should be turn on while browsing Internet.
3. Do not click any pop-ups during the Internet browsing.
4. Do not install any demo anti-adware program, always use full version. Because demo program is a adware itself, when its trial period expire it get error and force to perches it.
5. Always avoid install any file-sharing programs, it may be contain adware and spyware, such as:

• Applejuice
• Ares P2P
• Audiogalaxy
• BearShare

Some tips on computer maintenance : 1. Some time user facing a blue screen error. It could be hardware of software both cause of blue screen error message. some kind of wrong software installation or wrong hardware device driver instillation is the major reason of blue screen error. In that time you should go to save mode of computer and you need to uninstall that particular software or device driver.
2. Most of uses Internet Explorer cause keep huge of temporary files, cookies, and histories. It is another reason of slow performance of computer. If you want to make Internet Explorer run faster than you need to delete those temporary files.
3. If you feel that your computer startup time is too long, then you can prevent programs from running at startup. You can disable those program which is not need to start up. To prevent program form startup Click on Start then on RUN and type msconfig. click on the start up tab.
4. Disk utility checked you hard disk for any kind of logical error and fix them when you run it. Disk defragmentation process reduce the amount of fragmentation in file systems. It is reorganize noncontiguous files into contiguous files, which cause increased reliability and performance of hard disk.

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Four separate areas of study make up a full CompTIA A+; you’re qualified as competent at A+ once you’ve passed your exams for 2 out of 4 subjects. For this reason, most colleges limit themselves to 2 study areas. In fact you will need the information on each subject as many jobs will require an understanding of the entire course. It’s not essential to take all four exams, although it would seem prudent that you study for all four areas.

As well as learning about building and fixing computers, trainees involved in this training will have instruction on how to work in antistatic conditions, how to fault find, to diagnose and to remotely access problems. It could be a good idea to think about adding the CompTIA Network+ training as you’ll then be in a position to look after networks of computers, and become a more senior IT professional.

Talk to any specialised advisor and they’ll entertain you with many terrible tales of how students have been duped by salespeople. Ensure you only ever work with an experienced industry professional who digs deep to find out what’s appropriate to you – not for their bank-account! You need to find an ideal starting-point that fits you. With a bit of real-world experience or base qualifications, your starting-point of learning is not the same as someone new to the industry. For those students embarking on IT studies anew, it’s often a good idea to break yourself in gently, beginning with a user-skills course first. This can be built into most training packages.

Students hopeful to begin an IT career generally haven’t a clue which path is best, let alone what area to achieve their certification in. Because in the absence of any commercial skills in the IT industry, how can most of us be expected to understand what a particular job actually consists of? Usually, the way to come at this question appropriately comes from a thorough chat, covering a variety of topics:

* Your hobbies and interests – as they can reveal the areas you’ll get the most enjoyment out of.

* Why you want to consider starting in Information Technology – maybe you want to triumph over some personal goal such as being self-employed maybe.

* Any personal or home requirements you may have?

* When taking into account all that IT encapsulates, you really need to be able to see the differences.

* You’ll also need to think hard about the level of commitment that you will set aside for your education.

In actuality, your only option to investigate these issues is through a chat with an advisor or professional who has years of experience in the IT industry (and more importantly the commercial needs.)

Can job security honestly exist anywhere now? In a marketplace like the UK, with businesses changing their mind at alarming speeds, it seems increasingly unlikely. In times of growing skills shortfalls and high demand areas however, we can discover a newer brand of market-security; driven forward by conditions of continuous growth, companies struggle to find the number of people required.

The computing Industry skills-gap across Great Britain is standing at just over twenty six percent, as noted by the 2006 e-Skills investigation. Basically, we’re only able to fill just three out of 4 positions in the computer industry. Well taught and commercially certified new workers are consequently at a complete premium, and in all likelihood it will stay that way for a long time. It would be hard to imagine if a better time or market settings could exist for obtaining certification in this rapidly emerging and evolving industry.

The way in which your courseware is broken down for you can often be overlooked. In what way are your training elements sectioned? And in what sequence and at what speed is it delivered? Normally, you will join a program taking 1-3 years and get sent one module each time you pass an exam. It seems to make sense on one level, but consider these issues: It’s not unusual for trainees to realise that their training company’s ‘standard’ path of training doesn’t suit. You may find that it’s more expedient to use an alternative order of study. Perhaps you don’t make it inside of the expected timescales?

In an ideal situation, you’d ask for every single material to be delivered immediately – meaning you’ll have all of them for the future to come back to – whenever it suits you. You can also vary the order in which you move through the program if you find another route more intuitive.

We can’t make a big enough deal out of this point: Always get full 24×7 instructor support. You will have so many problems later if you don’t heed this. Many only provide email support (too slow), and so-called telephone support is normally just routed to a call-centre that will chat nicely with you for 5 minutes to ask what the issue is and then simply send an email to an instructor – who’ll call back sometime over the next 1-3 days, when it’s convenient to them. This is no use if you’re sitting there confused over an issue and have a one hour time-slot in which to study.

Be on the lookout for training programs that use several support centres around the globe in several time-zones. Each one should be integrated to give a single entry point as well as round-the-clock access, when you need it, with no fuss. Never compromise when it comes to your support. The vast majority of students who can’t get going properly, are in that situation because of a lack of support.

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A Top 10 List That Can Save Your laptop

Many who read this article may find these recommendations to be old news. However, think about the number of family, and friends that ask you for help fixing their computer and this may give them a bit of help

This list of recommendations for a healthy & secure computer is by no means a complete list of all you can and should do. It is however a good start if you want to keep your computer running good for an acceptable period of time. It will also help prevent some of the most common issues related to PC security.

1. Virus & Spyware :

The big one; make sure you have installed some sort of anti-virus and spyware protection. Don?t assume that the default configuration of the program is the best suited for your pc. For instance, I can?t tell you how many people I know whose computer has got a serious virus because of just one small but very important task. When the anti-virus software pops up a message and tells you that your subscription is about to expire, don?t just hit the ignore button. Take a ten minute break from what you are doing and renew your virus signature subscription. Not only will this keep you updated on newer viruses, it will allow your software package to update to newer versions. The same thing goes for spyware protection. There are plenty of free spyware protection solutions out there, none are perfect, but most do the job.

2. Hard Drive Fragmentation:

Believe it or not, many people have never even heard of this, or the process of Defragmentation. In a nutshell, when you install software or create files and data, the Operating System keeps this data on your hard disk drive. The most efficient way of storing this data would be in one continuous disk file. However, files are not always stored this way, or are initially stored this way and later become split up, or fragmented. Because of this, when the data or file is retrieved, the hard drive must be searched in multiple places just to combine data that makes up one file. This slows things down tremendously. If you are running Windows XP or Windows VISTA, you should perform a disk defrag at least fortnightly, more if possible.

3. Installing Games & Disk Intensive Software:

If you’re a gamer, or regularly use disk intensive software, the above Defragmentation process will help. However, you can also take another step to make things move a little faster. If you have two physically separate disk drives in your system, I suggest that you use one primarily for the Operating System and related software, and devote the other physical disk for installing games and other disk intensive applications. This cuts down on the competition for disk resources between your Operating System and other applications. Other things you could do as well, such as configuring the appropriate type of RAID where multiple disks appear to the operating system as one big logical disk drive.

4. Software & Hardware Firewall Protection:

If you are not using a firewall, then you are crazy. Actually, there is a significant chance that your system is already compromised if you have no firewall protection at all. Many cable/DSL router combo devices have built in firewall protection, and this is at least a good start. However, if you have Windows XP SP2, go ahead and enable the built in firewall as it will provide you another level of protection. Oh, yes, and when the system pops up a message about whether or not to allow a certain application or communication to take place, don?t just hit the ok button, read it through before making a decision.

5. Updating Drivers:

Hardware manufacturers routinely update their drivers. This includes video cards, sounds cards, capture cards, system boards, you name it. Some manufacturers have started to release automatic updates for their hardware, but many have not. Make sure you check these sites regularly and when a driver update is available, install it promptly.

6. What Do Your Children Download:

This is another big one. I can? tell you how many times I have been told by people that they have no idea how something got installed on their computer. Usually their second sentence contains ?one of my children must have downloaded it?. The first thing that comes to mind is ?why do parents let kids download what ever they like in the first place?. Not only can this severely impact the security and performance of your computer, who knows what your kids are getting their hands on. Do you know what one of the most frequently installed application installs I see on a teenagers machine is? Kazaa, BearShare, eDonkey are P2P file sharing programs. I don?t care what anyone says regarding how convenient and safe these applications are now, they are wrong. Monitor what your children are doing / downloading on the Internet. Install a parental control software package if need be.

7. Rebuilding Your Operating System:

If you are not familiar with system imaging software, I suggest you read up on them. One of the most popular packages is ?ghost? and it?s been around for quite some time.Rebuild systems on an annual basis using a imaging package to create a complete image of the basic OS and application install. This allows you to not only re-install the base operating system and applications by hitting just one button, but can save you big time in the event of a system disaster.

8. Installing & Uninstalling Applications:

Just about every time you install a new application or piece of software you increase the time it takes to boot your PC and in some cases decrease its performance. One thing that drives me nuts is printing software.It seems they load all kinds of unnecessary real-time running applets. HP printers are notorious for this. Be very aware of what it is you are loading and only load those components that you need. Even some off-the-shelf software packages load adware and other not so helpful applets. Also, when you uninstall software, not all the software gets uninstalled in many cases. One thing I suggest is to purchase a registry cleaner. This can dramatically decrease boot times and in many cases increase the overall performance of your PC.

9.Purchasing & Downloading Items from the Internet:

When you download or purchase any software from the Internet, make sure you pay close attention to everything you are agreeing to or checking off on the various pages that lead up to the final purchase or download. As with everything else, make sure you read the fine print. You may be agreeing to download and install something you don?t need or may impact the security and performance of you PC. Also, how many more mailing lists do you really need to be on? How many Internet Explorer tool bars do you need? Most of these tool bars should be renamed to ?adware / spyware bars?

10. Installing Operating System & Application Patches

In a nutshell, if you are using Windows XP, make sure that automatic updates are turned on. This is very important. Microsoft releases security and bug fixes routinely and some of them are critical in nature. Something people tend to overlook is updating and patching their applications. For instance, Microsoft Office has critical security patches and performance enhancements available in the form of patches and service packs. It?s not just Operating System bugs that can put you at risk, applications can too.

These few tips are very basic to the more technological people ,but for the majority of users without computer knowledge these may act as computer saving tips.

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