Hardware-
The physical computer, Central Processing
Unit (CPU), video display, keyboard, mouse and printer.
System Software
The operating system controls the computer
and translates your instructions into commands that
the computer can understand and process. Campus computers
have the system software pre-installed. They are currently
working with MS- Windows 95.
Application Software
Software that is designed to accomplish
a specific task. Examples of application software
are Microsoft Works 3.0 and MS Office.
RAM Memory
In order to store calculations, commands
and software on a temporary basis, the computer has
a fixed amount of memory that is turned on and off
with the computer itself. This memory is called RAM
and its size is measured in number of characters:
1 Byte = 8 characters. Each computer may have a different
amount of RAM memory.
Storage Devices-
Hard Drive and Floppy disks
Since the RAM memory cannot be used
to store information when the computer is off, another
device is needed to save information for longer periods
of time. There are two such devices:
Hard disk drive
A storage place inside the computer.
Most of the software run by the computer is stored
on the hard drive. Also, hard drives are used to store
files with all kind of information. Hard drives come
in different sizes.
3.5" floppy disk
A portable device used to transport
files from one computer to another, to keep copies
of files, and to store various kinds of information
that cannot be left in the hard drive. Floppy disks
can store more than 500 pages of double spaced work.
Basic Internet Terms
ActiveX - enables interactive
content on World Wide Web sites. Web sites using this
technology seem to come alive using multimedia effects,
interactive objects, and applications comparable to
that of a CD-ROM.
Address - (e-mail address,
Internet address, and web address ) - The code (series
of letters, numbers and/or symbols) by which the Internet
identifies you or the location where information is
stored.
Applets - Little programs
that can be downloaded and used by computers equipped
with a Java-capable browser.
Application - program
or software; what tells the computer to do what you
want it to do. Examples include Netscape Navigator,
Microsoft Internet Explorer, HTML editors, Shockwave,
Quick Time, and ActiveX.
Bandwidth - The frequencies
a transmission line or channel can carry: the higher
the frequency the higher the bandwidth and the more
information carrying capacity of a channel. Bandwidth
is also used to measure the amount of time it takes
for a Web page to fully load.
BBS (Bulletin Board System)
- A dial-up computerized meeting and announcement
system. You can carry on discussions, upload and download
files.
Bitmap - a bitmap is
a map of dots or "pixels". Pictures you
see on a Web page are bitmaps. Bitmaps come in many
file formats such as GIF, JPEG, TIFF, BMP, PICT, PCX,
and DIB .a bitmap is a map of dots or "pixels".
Bookmark - method of
"saving" a web site location. "Bookmarking"
a web site allows you to easily return to it that
page at a later time with a simple click of the mouse
rather than remembering and typing in long and sometimes
cryptic URLs. Bookmarks enable you to quickly find
areas of the web you have visited and want to return
to. Many web sites have a "links" section/page
which is a collection of bookmarks.
Boolean ("boolean
logic") - a system used frequently in search
engines and directories for searching and retrieving
information using and combining terms such as AND,
OR, and NOT to sort data.
Broken link - A link
or hyperlink or hotlink which no longer works when
"clicked on" or which does not take you
to the destination it was supposed to. This can occur
for several reasons, the server hosting the web site
is temporarily unavailable (for upgrading or technical
problems), or the web site has moved and is no longer
on the server. Also occurs if the HTML code for the
hyperlink is incorrect.
Browser - A program
that allows users to access documents on the World
Wide Web (WWW). Browsers can be either text or graphic.
They read HTML coded pages that reside on a server
and interpret the coding into what we see as web pages.
Netscape Navigator or Microsoft Internet Explorer
are the best known examples of web browsers.
Cache - (sounds like
'cash') a location in the memory of your computer
where data is stored for easy retrieval, allowing
quicker access to data. When you return to a previously
visited site your browser doesn't have to download
the information all over again, instead it can grab
it from the cache. This is why sometime you should
refresh the page if you want to view the most current
information.
Chat - The online version
of having a conversation, only you can chat with many
others from all over the world at the same time.
Cookies - Files stored
on your hard drive that contain information about
sites you have visited, newsgroups you have read,
or passwords to subscription areas of sites. Generally
harmless, usually expire on a set date. You can not
visit some sites unless you accept their cookies.
Compressed - Large
data files or programs available for download from
the Internet are frequently compacted to decrease
download time. File extension for compressed files
is usually zip.
Dial-up connection
- The most common form of Internet connection from
home, this is the connection from your computer to
the host computer over standard telephone lines.
Discussion group -
A group of people who exchange messages about specific
topics. Examples include: newsgroups, interactive
message boards, thread message forums, and e-mailing
lists.
Domain name - The "address"
or URL of a particular Web site. Also the name at
the right of the @ sign in an Internet address.
Download - To transfer
files from one computer to another. 'Saves" the
file or program to your computer.
E-mail address - is
similar to username@hostname.com The username is the
userID, account, or nickname of a specific person
or machine designated to receive the e-mail. The hostname
is either the name of the Internet Service Provider
(ISP) the account is set up with, or the name of the
computer which receives the e-mail messages. An e-mail
address would be spoken as username at hostname dot
com.
Emoticon - People use
simple keystrokes, found on any keyboard, to express
emotions, thoughts and actions. They can be thought
of as the computer users body language. Also called
smilies, they are commonly found in email, usenet,
newsgroups, chat rooms, and mailing lists. For example
;-) is a wink.
FAQ - Frequently Asked
Questions - answers to commonly asked questions gathered
into one location.
Flame - A nasty e-mail
or newsgroup message. An argument can become a flame
war.
Freeware - Software
that is available for download free.
FTP - File Transfer
Protocol - Allows the transfer of files between two
computers connected to the Internet. A frequent method
of uploading files for Web pages, usually requires
an account and a password. Anonymous FTP allows transfer
of files without an account or password.
Gateway - The computer
software and hardware allowing networks of computers
to connect.
GIF - Graphics Interchange
Format - the most common format for images found on
Web pages.
Home Page - The main
or introductory page of a Web Site. Personal Web pages
are frequently called home pages as well.
HTML - HyperText Markup
Language - The primary language used to develop Web
pages.
HTTP - HyperText Transfer
Protocol - Allows communication between a server and
a client computer. Web addresses usually begin with
http://
Hyperlink - Also called
hotlink, hypertext or link. Highlighted words in a
text that can be clicked on to go to another page
or site.
Hypertext - Also called
hotlink, hyperlink, or link. Highlighted words in
a text that can be clicked on to go to another page
or site.
ISDN - Integrated Services
Digital Network - digital high speed telephone lines
allowing transfer of data, audio, and video signals.
ISP - Internet Service
Provider - Agent for most peoples access to the Internet.
Can be either a Dial-up or Direct connection.
IP Address - Internet
Protocol Address - The name for the unique identifying
number every computer on the Internet has.
Internet - Basically
a bunch of computers linked together through a network
so computer users in different locations can have
access to the same information.Worldwide network of
computers
Latency
- the measure of time from when the device receives
a data request to the time the first byte of data
to be transferred has been sent.
URL (Uniform Resource
Locator or web address) - usually starts with http://www
followed by a "dot" and then a domain name
and a path.
Web address (URL or
Uniform Resource Locator) - usually starts with http://www
followed by a "dot" and then a domain name
and a path.