Basics of CPU
Setting CPU speed
What Is A Cookie?
It used to be that a cookie was something that was eaten with milk; however, within the
INTERNET the word cookie takes on a very different meaning. So, what is a
cookie? A cookie is a small piece of information that is sent by a
web server to be stored on a web browser, so that it can later be read back from that
browser the next time this unique visitor returns to that web server. This becomes useful
for having the browser remember specific information about this visitor like location of
their last visit, time spent, or user preferences (like style sheets). The cookie is a
text file that is saved in the browsers directory and is stored in RAM while the
browser is running. Also, the cookie may be stored on the computers hard drive once
you log off from that website or web server.
What Are Cookies Used For?
Also, they are used to store preferences of start pages. On sites with personalized
viewing, your web browser will be requested to utilize a small amount of space on your
computers hard drive to store these preferences. That way, each time you log on to
that website, your browser will check to see if you have any pre-defined preferences (a
cookie) for that unique server. If you do, the browser will send the cookie to the server
personal start pages on their websites. Common uses for which companies utilize cookies
include: on-line ordering systems, site personalization, and website tracking.
Site personalization is one of the most beneficial uses for cookies. For example, a person
comes to the CNN site, but does not want to see any business news. The site allows the
person to select this choice as an option. From then on (or until the cookie expires), the
person would not see business news when they access the CNN web pages.
Some visitors feel it is an invasion of privacy for a website to track their progress on a
site. We, at National Semiconductor, use this knowledge strictly for the purpose of making
your visits to our site as short and productive as possible. We want to get you the
information or services you seek as quickly as possible and allow you to get back to work
without delay. Site navigation statistics are critical to the continuing redesign of our
site. We need to know if 100 different people visited our site or if one person (or robot)
continuously hit the reload button 100 times.
How Do These Cookies Work?
A command line in the HTML code of a document tells the browser to set a cookie of a
certain name or value. The following is a general example of a script used to set a
Set-Cookie: name = VALUE;
expires = DATE;
path = PATH;
domain = DOMAIN_NAME;
What about security? An HTTP Cookie cannot be used to retrieve personal data from your
hard drive, install a virus, get your email address, or steal sensitive information about
who you are; however, an HTTP Cookie may be used to track where you travel over a
As with everything else about the Internet, you are only as anonymous as you wish to be.
No website knows who you are until you reveal to it who you are. In the meantime, a cookie
is simply a means of tracking site statistics in order to better understand usage patterns
and to improve visitor productivity. A cookie is our way of remembering that information.
The extent of that knowledge will not go beyond our site. Therefore, your identity will
not become public to the entire Internet because you visited our site. Your registration
information will absolutely be protected as we protect our own confidential information.
While you may perceive that your privacy is being violated, if you visit our site and do
not register, we will not know who you are. If you do not reveal private information to
the Internet, it will not be known to the Internet.
If a website designer desires to make web pages become more interactive with visitors, or
if the designer plans on letting visitors customize the appearance of the site, then they
will need cookies. Also, if you want your site visits to change appearances under certain
circumstances, cookies provide a quick and easy way to let your HTML pages change as
improve the overall interactivity of the website.
Also, cookies assist in troubleshooting problems reported by users. Without the use of
cookies, proxy server accesses make it impossible to distinguish between individual users
in the access log without requiring user log-ins for site access. Therefore, the use of
cookies is for the overall benefit of the site user, and to implement future website
content changes based upon user preferences.