Malicious Code, or Malware, is a type of software program that is usually created with the intent of stealing information or opening the computer it effects to attacks, hence the root word, malice. There are many different types of malware, all with different characteristics that help it accomplish different tasks. These types include viruses, Trojan horses, and rabbits. A common way to unintentionally install malware on your computer is through seemingly safe internet downloads. Sometimes, these downloads are involuntary, and occur as soon as you open a certain web page. In some cases, the malware program may even run itself after being installed on the computer.

Trojan Horses are a particularly powerful type of malicious code that may be picked up from scam emails or a deceiving download that comes with a Trojan, which is used to gather and steal person information and send it to other computers. These programs come in all shapes and sizes, and usually seem safe while offering some kind of service or benefit to the user.

Science 8 Lesson 189

How Internet Browsers Work

Internet browsers are what we use to connect to the world wide web. They contain millions of webpages which they index. When you enter a search query into a web browser, the browser will then find the closest matches to your search terms and display them. Many web browsers will featured sponsored content at or near the top of the search results page. These results are paid for by third parties, and are often similar to what the user is looking for. Browsers read the HTML code of each webpage you click on and display the page to you based off the code. Other web development languages such as CSS and JavaScript are read by browsers as well, and assist in the areas of design and interactivity, respectively.

There are several popular browsers, including Google Chrome, Mozilla Firefox, Internet Explorer, and Apple’s Safari. The first web browser ever was called WorldWideWeb, which was later renamed Nexus. Mosaic, released shortly thereafter, was recognized as the first graphical web browser. Internet Explorer, Microsoft’s free default browser, arrived on the scene in 1995, the same year as the revolutionary Windows 95 computer. Internet browsers are the most common type of software, as billions use them daily to access and browse the World Wide Web.

There are several common error messages that one may encounter when using a web browser. These include the 503 Error. This error usually means that your browser is unable to communicate with the website you are trying to access, or there are possibly too many users logged on that website. The 404 Error is another common occurrence. The 404 error message will display whenever you attempt to visit a non-existent page within an existing webpage. This is commonly the result of a mistyped URL, or an outdated link.

A Programming Language That Interests Me

Of the many different programming languages I think would interest me, one that particularly stands out to me is html. Html is a very simple coding language that is used for web design. It is quite easy to learn, and, if one is proficient in html, very versatile. The various tags are easy to memorize and are easy to use. However, html is often considered less of a programming language and more of a way of adding context and structure to text. All things considered, I would say html is unique because it it so easy to use and can be quite powerful for web design or just trying to make your text look nice.

In conclusion, the html coding language is a good language to learn, and can be useful for making great visual additions to your website. If you are interested in learning basic html, click here.

Computer Week 3 (Science Week 33)

What’s Inside A Computer?

The inside of a regular desktop computer has four main components. The motherboard is a circuit board to which many items like USB ports are connected. The motherboard also holds the CPU, which is the brain of the computer, as well as the RAM (Random Access Memory). In addition to this main board, there are also several other circuit boards inside many computers that are made for more particular aspects of the computer.

Next, the power supply in the back corner of the computer takes the power from the wall plug and distributes it to the various components of the computer. The power supply is a small square box with a fan attached to it to prevent it from overheating. Lastly, the computer also contains at least one hard drive, which houses permanent files (as opposed to flash memory storage devices like SD cards and flash drives), as well as a CD ROM.

Computers Week 1 (Science Week 31)