‘A blog is a website in which items are posted on a regular basis and displayed in reverse chronological order. The term blog is a shortened form of weblog or web log. Authoring a blog, maintaining a blog or adding an article to an existing blog is called “blogging”. Individual articles on a blog are called “blog posts,” “posts” or “entries”. A person who posts these entries is called a “blogger”. A blog comprises text, hypertext, images, and links (to other web pages and to video, audio and other files). Blogs use a conversational style of documentation. Often blogs focus on a particular “area of interest”, such as Washington, D.C.’s political goings-on. Some blogs discuss personal experiences. Blogs are usually (but not always) written by one person and are updated pretty regularly. Blogs are often (but not always) written on a particular topic - there are blogs on virtually any topic you can think of. From photography, to spirituality, to recipes, to personal diaries to hobbies - blogging has as many applications and varieties as you can imagine. Whole blog communities have sprung up around some of these topics putting people into contact with each other in relationships where they can learn, share ideas, make friends with and even do business with people with similar interests from around the world. Blogs usually have a few features that are useful to know about if you want to get the most out of them as a reader.
How to create a Blog?
To create a blog you first need to register your user details and sign up at www.blogger.com. Then log in to your blogger once you logged in just click on dashboard to manage your blog. To post your task click on new post by clicking on the new post a window will pop up. Then you can title your blog and write your task. And with blogger you can upload your pictures and documents by clicking on upload ‘images and document’ on the right hand side of the new blogger window.
Monday 27 April 2009
What is a Motherboard?
A motherboard is also known as a main board, system board and logic board. A common abbreviation is ‘mobo'. They can be found in a variety of electrical devices, ranging from a TV to a computer. Generally, they will be referred to as a motherboard or a main board when associated with a complex device such as a computer, which is what we shall look at. Put simply, it is the central circuit board of your computer. All other components and peripherals plug into it, and the job of the motherboard is to relay information between them all. Despite the fact that a better motherboard will not add to the speed of your PC, it is none-the-less important to have one that is both stable and reliable, as its role is vital. A motherboard houses the BIOS (Basic Input/Output System), which is the simple software run by a computer when initially turned on. Other components attach directly to it, such as the memory, CPU (Central Processing Unit), graphics card, sound card, hard-drive, disk drives, along with various external ports and peripherals. Motherboards, cases and power supplies all come in different sizes called form factors. All three must be compatible to work properly together. Motherboards vary greatly in respect to the types of components they support. For example, each motherboard supports a single type of CPU and a short list of memory types. Additionally, some video cards, hard drives and other peripherals may not be compatible. The motherboard manufacturer should provide clear guidance on component compatibilities. The front of the motherboard contains ports that all of the internal components connect to. A single socket/slot houses the CPU. Multiple slots allow for one or more memory modules to be attached. Other ports reside on the motherboard which allows the floppy drive, hard drive and optical drive to connect via ribbon cables. Small wires from the front of the computer case connect to the motherboard to allow the power, reset and LED lights to function. Power from the power supply is delivered to the motherboard by use of a specially designed port. Also on the front of the motherboard are a number of peripheral card slots. These slots are where most video cards, sound cards and other expansion cards are connected to the motherboard. On the left side of the motherboard (the side that faces the back end of the case) are a number of ports. These ports allow most of the computer's external peripherals to connect such as the monitor, printer, keyboard, mouse, speakers, phone line, network cable and more. Most motherboards also include USB and FireWire ports here that allow compatible devices to connect to your computer when you need them - devices like digital still and video cameras. The motherboard and case are designed so that when peripheral cards are used, the sides of the cards fit just outside the back end, making their ports available for use.
The motherboard can be thought of as the "back bone" of the computer.
The motherboard can be thought of as the "back bone" of the computer.
Sunday 22 February 2009
Your work throughout (particularly on the hardware), must conform to current health and safety requirements.
The most important thing is that when you are working with hardware makes sure the electric wires such as power supply is unplugged. While you are working with hardware make sure don’t touch those stuff which you really don’t know what you have to done with them. You should use a fully adjustable chair as this will avoid poor posture. Make sure there is no liquid substance around you which will accidentally affect the hardware. Take several breaks and keep you self moving to keep your self away from back ache. Make sure the monitor is eyelevel and your hands are supported when you are typing and make sure that you feet touch the floor properly. To prevent Strain Injury, you should use wrist rests and have a five-minute break from typing every hour.
Explain the effect of these activities on the performance of the computer system; indicate why they are undertaken and what benefits they bring to the
The effect of these activities on the performance of the computer system will now enable the speed of the computer to run and work smoothly, such as if you use a virus protection on you computer it will notify you if there is any virus on your computer and most of these virus protection will remove if it finds any virus. It is very important to scan you computer at least once a month. You could use schedule task to scan your computer once a moth. The benefit of scheduling is that it will schedule at the specific date and time you schedule it for. And the benefit of Clean-up tools -defrayment hard drive, Cleaning up Pc tools helps the Pc to delete the unwanted file and same twice copied files and make the speed of a Pc faster and reliable. And also the benefit of installing a firewall is that it secures system, protecting it from access by unauthorized users. It is also good to back up your work using a CD or a portable hard drive; this is because in case of any virus that damages your computer, or prevents accident deletion and loss of work. You could have the access to those files again. So there for it’s a great advantage of keeping a back up of your work. To Create Copy and delete files help the users to copy they files in other drive, and to deleting an unwanted files can help to save space in they drive to run the computer faster. And Install Service Pack 2 patches for Windows XP are to update security packages which allows the computer to protect it from unwanted and harmful material which can affect windows XP and computer files.
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