Sunday, October 12, 2008

BLOG

Nowadays having blog is a necessity for teenagers.We use blog for various reasons such as to express your feelings,create awareness in our society,as well as gossiping .A blog is a Web site, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. "Blog" can also be used as a verb, meaning to maintain or add content to a blog.
Many blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability for readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (artlog), photographs (photoblog), sketches (sketchblog), videos (vlog), music (MP3 blog), audio (podcasting), which are part of a wider network of social media. Micro-blogging is another type of blogging, one which consists of blogs with very short posts.So if u dont hav a blog yet quickly make one for your own benefits:)

Monday, September 8, 2008

Differences between Application Software and System Software

System software
*control and maintain the operation of computer and its devices.
*serves as the interface between the users ,the application software and the computer's hardware.

*example of system software are operating software and utility programs.

Application software
*consist of programs designed to make users more productive.
*used as an interface which allows users with an internet connection to access and view Web pages.
*example are spreadsheet software and word processing.

Input n Output

The functions of input and output are discuss as following:

Input is any data and instruction entered into the memory of a computer.An input device is any hardware components that allows users to enter data.Examples of input devices are keyboard,microphone,mouse,scanner,digital camera and webcam.

Output is data that has been processed into useful information.Output devices is any hardware components that conveys info to one or more people.Example of output devices are printers,speakers,headphone and monitor.

Sunday, August 10, 2008

computer and eye's cataract

Since we dont know the exact cause of eye's cataract,though the scientist has related that computer could play a mini role which could be a triggering factor so it's best that we avoid the usage of computer for a long period of time.As prevention is better than cure.UV radiation can increased the chance of cataract formation,UV radiation is a component of solar energy but it can also be given off by artificial sources such as machinery.But not to worry as the level of radiation from computer screen are below level that may only cause temporary damage such as cataracts,fatigue,dry eyes and eyestrain..

Sunday, July 20, 2008

computer perspective

Computers has become the outmost important devices towards the era of globalisation.My perspective towards computer is it has many advantages and disadvantages.

First of all i would like to talk about its advantages.Computer can reduce the comsumption of time per day.For example with the use of computer it can speed up our daily routine as it can deal with billions and trillions of data at the same time.Secondly,computer can act as a storage medium .A computer can store as many data as possible with the condition the memory used in the CPU is sufficient.

On the other hand,discussing about the disadvantages of computer.Research has been done computer can affect our health as it does emit mild amount ofradiation.One disease that may be caused by computer is eye's cataract.Last but not least computer is said to be harmful towards the environment as in certain countries like the US those damaged computer are being thrown away without being recycle.