Network Chico Computer
terms glossary
Some definitions from the Sharpened Glossary
| 0-9 | A
| B | C | D
| E | F | G
| H | I | J
| K | L | M
| N | O | P
| Q | R | S
| T | U | V
| W | X | Y
| Z |
If you would like to have a term added to the Network
Chico computer terms glossary please contact
Network Chico today with
your suggestion. Your feedback
is important to Network Chico.
=J=
Jack coupler: The female
receptacle into which a modular TP (twisted-pair) cable plugs.
Jacket: The outermost
layer of a cable.
Java: Java is a programming
language developed by Sun Microsystems. The syntax of Java is
much like that of C/C++ but it is object-oriented and structured
around "classes" instead of functions. Java can also
be used for programming applets which are small programs that
can be embedded in web sites. The language is becoming increasingly
popular among both web and software developers since it is efficient
and easy-to-use. Sun Micorsystems describes Java as a "simple,
object-oriented, distributed, interpreted, robust, secure, architecture-neutral,
portable, high-performance, multithreaded, dynamic, buzzword-compliant,
general-purpose programming language."
JavaScript: Like Java,
this is a programming lanuguage designed by Sun Microsystems,
in conjuction with Netscape, that can be integrated into standard
HTML pages. While JavaScript is based on the Java syntax, it
is a scripting language and therefore cannot be used to create
stand-alone programs. Instead, it is used mainly to create dynamic,
interactive web pages. For example, web developers can use JavaScript
to validate form input, create image rollovers, and to open those
annoying pop-up windows.
JPEG: The term actually
stands for "Joint Photographic Experts Group" because
that is the name of the committee that developed the format.
A JPEG is a compressed image file format. JPEG images are not
limited to a certain amount of color like GIF images are. Therefore,
the JPEG format is best for compressing photographic images.
So if you see a large, colorful image on the web, it is most
likely a JPEG file. However, JPEG is a "lossy" format,
which means some quality is lost when the image is compressed.
If the image is compressed too much, the graphics become noticeably
"blocky." Like GIFs, JPEGs are cross-platform, meaning
the same file can be viewed equally on both a Mac and a Windows
PC.
JSP: "Java Server
Page" This standard was developed by Sun Microsystems as
an alternative to Microsoft's active server page (ASP) technology.
JSP pages are similar to ASP pages in that they are compiled
on the server rather than in a user's web browser. After all,
they don't call them "server pages" for nothing. However,
JSP is Java based, whereas ASP is Visual Basic based. JSP pages
are useful for building dynamic web sites and accessing database
information on a web server. Though JSP pages may have Java interspersed
with HTML all the Java code is parsed on the server. Therefore,
once the page gets to the browser, it is only HTML. JavaScript,
on the other hand, is usually parsed by the web browser, not
the web server.
Jumper: This is a small
metal connector that acts as an on/off switch and is used to
alter hardware configurations. A jumper is typically made of
two wires and a small piece of metal. When the wires are connected
by the metal piece the jumper is turned on completing the circuit.
When the wires are disconnected the jumper is turned off. Mulitple
jumpers, referred to collectively as a jumper block, are often
used to tell the computer how a certain device, such as a hard
drive or a modem, is configured. They can be found on motherboards,
sound cards, graphics cards, I/O cards, CD-ROM interface boards,
modems, and hard drive controller boards, and others. Manually
setting jumpers can be a confusing process so most hardware usually
comes with the necessary jumpers preset. If they are not preset
there should be documentation with a clear diagram of the jumper
settings included with the hardware. Fortunately a lot of plug-and-play
equipment available today does not require any jumpers. These
devices can be configured through a user-friendly interface on
your computer or automatically by the hardware itself.
Jumper block: A collection
of two or more sets of jumper pins or a special connector designed
to make contact between two or more sets of contiguous jumper
pins at the same time.
Network Chico Computer
terms glossary
| 0-9 | A
| B | C | D
| E | F | G
| H | I | J
| K | L | M
| N | O | P
| Q | R | S
| T | U | V
| W | X | Y
| Z |
Top of page
|
