- Also known as:
- Internet filter
- Related Topics:
- Internet
- application software
content filter
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What is technology?
Technology combines "art, craft" (from the Greek technē) with "logos, speech" and refers to the systematic application of scientific or other organized knowledge to practical tasks. It aims to change and manipulate the human environment.
Content filters are a type of technology used to restrict access to certain material on the internet. They can be implemented through software, hardware, or a combination of both, and are often used in homes, schools, and workplaces to block content deemed inappropriate or harmful.
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How do people use technology in everyday life?
Content filters are used in everyday life to screen and block online content, especially to protect children from inappropriate material. These filters, implemented as software, scan web pages and emails for specific words or images, blocking access to sites or messages that contain objectionable content.
Content filters are used by individuals, businesses, and governments to regulate Internet use by restricting access to sensitive topics. While content filters can help protect children, they may also block acceptable sites, leading to frustration. Some countries use content filters to censor political, religious, or cultural content.
The Supreme Court has ruled that requiring public schools and libraries to use internet filters is constitutional.
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What are some different types of technology?
Technology applies scientific knowledge to change and manipulate the human environment. A content filter is a type of software that screens and blocks online content with specific words or images.
Examples of technology include:
* Communications technology (the Internet, smartphones, messaging apps)
* Manufacturing (3D printing)
* Artificial intelligence (AI)
* Engineering (civil, chemical, electrical)
* Medicine (pharmaceuticals)
* Energy (nuclear power)Content filters use blocked site lists and buzzword lists to restrict access to objectionable material. These lists are created through human review and automated selection.
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How has technology changed the way we communicate?
Technology has revolutionized communication by enabling broader participation through social media and diverse online platforms. However, this has also led to the spread of misinformation and "fake news," creating risks to public health and the rise of extreme ideologies. Content filters, which screen online material for specific content, are used to regulate Internet access. While they can protect children from harmful content, they sometimes block acceptable sites, raising concerns about censorship. Some countries employ content filters to block sensitive topics, limiting access to information. Despite these challenges, technology's impact on communication remains significant, necessitating media literacy to discern credible information.
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What impact does technology have on the environment?
Technology has significantly altered Earth's environment through manufacturing, use, and disposal processes. The emission of fumes, gases, and particulate matter into the air, the discharge of liquid waste into water and drainage systems, and the disposal of hazardous wastes all contribute to environmental degradation.
E-waste recycling can be particularly damaging. Burning to recover metal leads to air pollution from the emission of brominated and chlorinated dioxins. Toxic chemicals are dumped during the recycling process, which affects local groundwater quality, rendering the water unsafe for consumption or agriculture. Dust particles loaded with heavy metals and flame retardants pollute the atmosphere, entering soil and water systems and causing further pollution.
To mitigate these effects, tighter regulations on e-waste recycling and disposal are needed, alongside policies that extend the responsibility of producers beyond the point of sale, covering the entire product life cycle.
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How might technology continue to develop in the future?
Future content filter technology will likely focus on improving accuracy and addressing new challenges through artificial intelligence (AI). AI can help to identify and block illegal content, such as virtual child sexual abuse material, and assist law enforcement.
AI is used to process large amounts of data quickly. However, content filters sometimes wrongly label acceptable sites as objectionable, and can be used to censor political content. To combat this, content filters may develop "allow" lists, where primary users can add websites. Companies like Cloudflare are also developing methods to block AI data scrapers from illegally collecting and using content to train AI bots.
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content filter, software that screens and blocks online content that includes particular words or images. Although the Internet was designed to make information more accessible, open access to all information can be problematic, especially when it comes to children who might view obscene or offensive materials. Content filters restrict what users may view on their computer by screening Web pages and e-mail messages for category-specific content. Such filters can be used by individuals, businesses, or even countries in order to regulate Internet use.
Once a user sets up a content-filtering program to restrict access to objectionable material, the program works in two distinct ways when an Internet connection is made. First, it checks to make sure the site is not on the software’s “blocked” site list, which includes known pornography Web sites and sites with violence or other “mature” content. Second, it previews requested Web pages and incoming e-mails by scanning them against a “buzzword list” or “blacklist.” If the Web site or e-mail account is listed in either of those databases, the site or message will not be displayed on the screen, and instead a page will appear notifying the user that the site or message is blocked.
The blocked and buzzword lists themselves are created in two ways: human review and automated selection. Companies that develop content-filtering software maintain staffs of reviewers who scan the Internet for objectionable sites. The sites are then placed into different categories in the blocked list database. That way, if a user has selected to not view sites related to alcohol, drugs, or religious cults, the software will automatically load the correct category sets from the database. However, given that the World Wide Web is growing much faster than the software companies can review it, it is only logical that the review process relies at least in part on automation. Even if there were enough reviewers to catalog the entire Web, the blocked list would be out of date by the time they finished.
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Sometimes, acceptable sites get wrongly labeled as objectionable. That results in frustration and anger—especially on the part of the administrator of the allegedly objectionable site. Some sites supplying information about breast cancer, for example, might be blocked if the word breast appears on a buzzword list. However, most content-filtering programs allow the primary user to add Web sites to an “always allow” list that supersedes the filter’s databases. Opponents of content-filtering programs, who often call them “censorware,” claim that sites are sometimes blocked for apparently political reasons. For example, peacefire.org, a site that opposes content filters, is reportedly often blocked by those same content filters.
Some countries, such as Saudi Arabia and China, use content filters to block “sensitive” or “inappropriate” topics and Web sites from their citizens. That form of censorship may limit access to information about religion, politics, sexuality, or culture and is used by a number of countries to expressly block content related to border disputes and extremism. Some government-level content filters even control the use of Internet services including e-mail, Internet hosting, language translation, and voice over Internet protocol (VoIP) services such as Skype.