Public computer
Encyclopedia
A public computer is any of various computers available in public areas. Some places where public computers may be available are libraries, schools, or facilities run by government.

Public computers share similar hardware and software components to personal computer
Personal computer
A personal computer is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end-user with no intervening computer operator...

s, however, the role and function of a public access computer is entirely different. A public access computer is used by many different untrusted individuals throughout the course of the day. The computer must be locked down and secure against both intentional and unintentional abuse. Users typically don't have authority to install software or change settings. A personal computer, in contrast, is typically used by a single responsible user, who can customize the machine's behavior to their preferences.

Public access computers are often provided with tools such as a PC reservation system
PC Reservation System
A PC reservation system is a system whereby publicly accessible computers can be reserved for a period of time. These systems are commonly used in facilities such as public libraries to ensure equitable use of limited numbers of computers. Bookings may be done over the Internet or within the...

 to regulate access.

The world's first public access computer center was the Marin Computer Center
Marin Computer Center
Opened in 1977 in Marin County, CA, the Marin Computer Center was the world's first public access microcomputer center. The non-profit company was co-created by David Fox and Annie Fox an author....

 in California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, co-founded by David and Annie Fox in 1977.

Library computers

In the United States and Canada, almost all public libraries have computers available for the use of patrons, though some libraries will keep users timed to allow others to get turns and keep the library less busy. Users are often allowed to print documents that they have created using these computers, though sometimes for a small fee. When using these computers, it is a smart idea to bring a USB flash drive
USB flash drive
A flash drive is a data storage device that consists of flash memory with an integrated Universal Serial Bus interface. flash drives are typically removable and rewritable, and physically much smaller than a floppy disk. Most weigh less than 30 g...

 for digital note-taking or bringing files home if the need arises.

School computers

The U.S. government has given money to many school boards to purchase computers for educational applications. There is usually Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

 access on these machines, but some schools will put up a blocking service to limit the websites that students are able to access to only include educational resources, such as Wikipedia
Wikipedia
Wikipedia is a free, web-based, collaborative, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Its 20 million articles have been written collaboratively by volunteers around the world. Almost all of its articles can be edited by anyone with access to the site,...

 or Google
Google
Google Inc. is an American multinational public corporation invested in Internet search, cloud computing, and advertising technologies. Google hosts and develops a number of Internet-based services and products, and generates profit primarily from advertising through its AdWords program...

. In addition to controlling the content students are viewing, putting up these blocks can also help to keep the computers safe by preventing students from downloading malware
Malware
Malware, short for malicious software, consists of programming that is designed to disrupt or deny operation, gather information that leads to loss of privacy or exploitation, or gain unauthorized access to system resources, or that otherwise exhibits abusive behavior...

and other threats. However, the effectiveness of such content filtering systems is questionable since it can easily be circumvented by using proxy websites, Virtual Private Networks and for some weak security systems merely knowing the IP address of the intended website is enough to go through.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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