February 4, 2010 – 9:25 pm
The internet is a place to play and a place to learn. That doesn’t mean that certain dangers don’t exist on some websites that people accidentally surf to. It’s less about the content a site might contain and more about what’s happening behind the scenes. Malicious programs are often downloaded without users knowing, and they can take over an operating system very quickly. It’s important to learn how to stop popups with spyware adware cleaner programs, to take care of this annoyance.
Spyware and adware are malicious programs that are downloaded to a user’s computer, often without their knowledge. They become embedded in the computer system and make themselves known with various interfering activities. Sometimes they will show up in the form of popups. That’s why learning to stop popups with spyware adware cleaner is very important.
A person can be quietly using their computer, and suddenly popups will occur. Sometimes this…
February 4, 2010 – 6:11 pm
If you are looking to be an IT (Information Technology) professional then computer networking training is a must have requirement for you. Networks are connecting almost everything we use in the computer world. Printers are connected via networks, computers are networked together, we connect to servers the world over through the largest network in the world (the Internet).
Networking is the basis for some of the most revolutionary information sharing in the modern world. Computer networking training can provide the skills and knowledge needed to set up, troubleshoot, and repair networking issues. The technician who can successfully do this will be in great demand for some time to come. Even the home office worker will benefit from obtaining computer networking training, as many home offices are now equipped with pre-installed network jacks and / or wireless network systems.
Everything that applies to training in general also applies to computer networking. You want…
February 4, 2010 – 4:23 pm
The COUNTIF function is used to count the number of cells in a given range which satisfy a condition. COUNTIFS does the same. However, here, we can specify multiple criteria. For example, let’s say we have a worksheet containing four columns: the date, the number of phone calls received, the number of complaints and the percentage of calls which were actually complaints.
We would now like to create a summary worksheet to calculate the number of days where the percentage of calls that were complaints is, firstly, under 5%; secondly, between five and 10% and, thirdly, over 10%.
To work out those days where we have fewer than 5% or more than 10%, we can use COUNTIF function because we are dealing with a simple condition: less than 5% or greater than 10%. However, to calculate the number of days where we had between 5% and 10%, we will need multiple criteria;…
February 2, 2010 – 4:01 pm
Extensible Stylesheet Language (XSL) is a technology closely related to XML which is used to transform XML data. XML file are used to set out the ground-rules for a given body of data and to describe the data itself. XSL allows us to take the original XML data and convert it into information which can be displayed in a web browser window or opened with a text editor. XSL can also be used to create an XML file which is a modified version of an original XML file.
When displaying elements in a browser window, the XSL elements which enable looping through an XML tree and decision-making really come into their own. One of the key methods used in XSL for looping through XML elements is the “For-each” element. This uses the “select” attribute to specify which element is to be targeted in the loop. The “For-each” element has both an…
January 31, 2010 – 9:29 am
You could say that it all started with a math problem. That problem brought on the challenge of more complex math problems. Humans were performing these complex math problems using various methods. Then came the abacus: a simple instrument designed to aid in performing mathematical calculations. One might say that this is where computer training began: the first teacher training the first student on the operation of the abacus.
Centuries later, even after other devices had been created to aid in mathematical computations, the original ‘computer’ – the abacus – remained. Through the aid of electronics came the first computer. This first computer could fill a room. In fact, there are many from that era in use to this day: they still fill a room. The purpose of the first computer was to complete complex mathematical operations in little or no time.
The earliest computers could only be used and understood by…
by Andrew Whiteman
A web page has two main areas: the head element and the body element. The body element contains all of the visible content which will be displayed in the browser window. The head element, by contrast, is designed to contain information about the web page; meta information as it is sometimes called. In this article, we will look at the different ways in which Dreamweaver allows users to modify elements within the head of a web page. Let’s start with the title.
The title element is meant to contain a broad description of the content of the page. It is extremely important that each page should have a title element and that the title be pertinent to that page. Dreamweaver automatically adds a title element to every new page with the default text “Untitled Document”. Perhaps the easiest way of modifying this default title is simply to enter a…
