Because schools don't want you to run into inappropriate content.
Because they hate everybody they dont want you to do work at school but would u have homework
Depends on the school block system
Why don't you ask your teachers? Common sense would tell you that kids need to focus on school, not the Internet, unless it is school-related.
So that you can't check your myspace instead of doing your homework.
I believe they have people monitoring the network for Google searches and websites that are accessed. When they find a site they don't like, they add it to the database and BAM! new blocked sites, EDIT: I have done lots of research on this using C2K and have found out that they have a system which scans a webpage for a banned word in their data base and if its there they block the page. They don't block the whole website, only the pages containing the banned words. I used all my research to make a website which is invisible to school servers and is almost impossible to block. If you want to check it out its called Boredlabs.com
Preventive health and Health Services block grant.
pcb
In block style letters everything lines up to the left of the margin. In a modified block style everything lines up at the left except the address which appears by the right margin.
a (building block) of the universe/creates everything
If you have a protection code, or child block on your Internet, you will need to enter a passcode, or turn off the block in order to unblock everything. After you unblock everything, you may experience pop-up ads.
It would depend on the limitations of your particular school internet system, as most will block some internet websites, but some may allow access to sites which others do not.
what is communication system explain with block diagram.
At my schools (and most others i think) Grooveshark isn't blocked so that's what we use!! hope that helps, coz i know what its like when your at school and they block or filter EVERYTHING! why they even do it os a mystery for most sites!! xx