Friday, September 24, 2010

Are computers magic? Just how to they do the things they do?

No, computers are not magic, they are science. Although it is very hard to believe that human have created this device and that this small device can do incredible things, it's not a magic.
If it's not magic, then what is it?
It's a combination of hardware and software.
It's a combination of control unit, computer data storage, and input/output.
The control unit reads and interprets the instruction in program and controls the actions a computer does.
The computer data storage stores data and information in the form of image, audio, and text.
The input/output helps the computer exchange information with the outside world.
So how do these make the computer work?
People input commands into a computer using an input device, such as mouse or keyboard, and the control unit reads and interprets it and control the computer to follow the command. Then the computer responds to the command with the information and data stored in the computer data storage via output device, such as monitor or printer.

Friday, September 17, 2010

On a daily basis, how many embedded devices do you rely on?

On a daily basis, we rely on more than 10 embedded devices, devices that have been programmed to handle a particular task, without realizing it. For example, almost everyone uses computer, watch TV, talk on the cell phone, depend on smoke detector for fires, use microwave to warm up the food, keep foods in refrigerator, listen to music on Ipod, use printer to print papers, use keyboard to type, use mouse to move the cursor, and use calculators to calculate numbers. As you can see, it is almost impossible to live without and function property without embedded devices. Some people might say we don't need those in our lives. However, people should know that the traffic light is an embedded device. Also, the electric generators are embedded devices.

Now the world and people depend more on embedded devices and can't live without it. The world creates electric from wind turbines, solar pannels and water turbine, which are all embedded devices, and people travel all over the world by airplanes, electric cars, and ships. The embedded devices are improving and developing as the time passes by and will be more useful to people.

Thursday, September 16, 2010

What is a computer?

Computer is a very useful device that promotes people lives. Today, the world is almost impossible to function without the computers or any other devices. People use computer to create PowerPoint presentation, write documents, store information, play games, listen to music, watch video, and almost everything that we do in our life. People can go online and search the World Wide Web with a help from the internet. On the internet, people can socialize, search for information, download files or music, read articles, and, basically, entertain themselves. Although computer is very useful and necessary for people, too much of it can be detrimental. Due to game addiction, internet addiction, and/or computer addiction, people spend hours sitting down and using computer and going nothing else.

Wednesday, September 15, 2010

Scratch Game Review : 10 sec Game

the starting page

This is a shooting game. It is very easy to play, but you will not be able to play it on your first try because it doesn't teach you how to play it. Even though it tells you to "shoot down all the targets down before the time runs out", it doesn't tell you the controls. By the way, you can go to the title page, the starting page , by pressing ENTER, start the game by pressing SPACE, shoot down the target by pressing S, and move the blue ball with the arrow keys on your keyboard.

after shooting down a target
When you start the game, you will see the red target. You have to move the blue ball to the target and press S to shoot it down. However, the target can be destroyed by just pressing S anywhere. After shooting down the target, another target will appear. You will need to shoot down all the targets before 10 seconds pass by. However, this game is not beatable because after shooting down 8 targets, nothing happens. Thus, you will not be able to see the ending of the game.

Introduction

Hello my name is Sung Jin Park.
I am currently a senior attening Francisco Bravo High School.
I was born in Korea and I came to the US about 10 years ago.
I can speak Korean very fluently because I speak it more than English everyday.
I like playing computer games but not reading; however, I can finish a book in a day if I like it.
My favorite book is Children of the Rune. Like I wrote before, I don't like reading but I read this book more than 2 times already. Children of the Rune is like Harry Potter but better. It consists of 2 series, the first one is called Winterer and it has 7 books, and the second one is called Demonic and it has 8 books. I would recommend it to you guys to read it but it's Korean and has been translated only into Japanese, Taiwanese, and Chinese.