The Techie Glossary
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1st Letter |
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 |
2nd
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EA   
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EARN
stands for the European Academic Research Network. This network
uses BITNET technology connecting universities
and research laboratories throughout Europe.  
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EG
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EGA
stands for Enhanced Graphics Adapter. It is a color video
adapter card for a bit-mapped display
that shows 16 colors. EGP
stands for Exterior Gateway Protocol which is a reachable routing
protocol used by gateways.
EGP is the protocol used in the core gateway system for the Internet.
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Em |
Email
or e-mail
is a method of communicating over the Internet
directly to another user or group of users
using text documents similar to letters called messages. Email is transferred
by using SMTP IMAP,
ICMP or POP
protocols. An email
server stores the message from the sender until a request for delivery
comes from the recipient. Email is received by the user through an email
client which is the client application
that retrieves the messages from the server. Email
clients
are the client applications that retrieve
the email messages from the email
server. Email
servers
stores the email messages from the sender until a
request for delivery comes from the message recipient's email
client. This storage takes place on a specially configured server
computer.
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En |
Encapsulation
is the technique used by layered protocols
in which a layer adds header information
to the data unit within the protocol of
a lower layer. A packet would contain
a header from the physical layer, followed
by a header from the network layer,
with a header from the transport layer,
followed by the application layer data.
Encoding
is the writing of the computer software
code using a programming
language. Encryption
is the application of an algorithm to a set of data
to scramble it so that other people who might get the data will not be
able to read it immediately. Eventually encrypted data can sometimes be
decrypted by using a complementary algorithm.
It can also sometimes be deciphered by computer
programs that use brute processing
force to crack the encryption algorithm. End
key
refers to the key on the keyboard with
the word End on it. It is a directional
key that initiates cursor movement
on the screen. It provides various functions
with different software applications.
End
System to Intermediate System
(ESIS) network protocol
is used by end systems to announce themselves
to intermediate systems and servers.
It is part of the OSI network model. End
systems
are computer systems in the OSI
network model that are designated for use by end
users. They are connected to the network
by bridges, repeaters
or routers. End systems are distinct from
servers and intermediate
systems. End
users
are basically the same thing as users of
a computer system or on a network.
The phrase end user can also refer to the user of a specific piece of
software. Sometimes end user is used in
conjunction with the network term end system. Enhanced
Graphics Adapter (EGA) is a color video
adapter card for a bit-mapped display
that shows 16 colors. Enter
key
refers to the key on the keyboard that
says Enter or Return on it. They both mean the same thing. This is the
vital key that can enter commands to the
computer for processing
from the command line. It is also used
to create a new line in text editing
or word processing software
applications. Entity
is the OSI network model term for a layer
protocol machine. An entity within a layer performs the functions
of the layer within a single computer system.
This is accomplished by accessing the layer entity below and providing
services to the layer entity above at local
service access points of the layer protocol
machine. Environment
can have different meanings dependent upon the context. An environment
is a platform or architecture that has
a shared interface such as a shared set
of rules or objects. Programming
environments have shared features and functions,
operating system environments have a
shared API, the web
environment has a shared CGI.
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Er |
Error
messages are
reports of the error anomalies that occur in computer
hardware and software.
Sometimes these messages are written for programmers
so they make little sense to the user. Errors may be reported to the user,
and the user can sometime send the reports to the vendor
of the software. Errors
are
anomalies that occur in computer hardware
and software. They can be caused by conflicts
in the computer system or bugs
in the programming. It is sometimes
hard to tell whether the operating system
or the application caused the error. It
is best to avoid repeating whatever steps caused the malfunction. Errors
may be reported to the user with an error message,
and the user can sometimes send the reports to the vendor
of the software. An error in a software
application normally will not crash
a system. A user can try to close a program
if it freezes because of an error by
trying to kill the associated process
or he control-alt-delete key combination
can be used to try to stop the task. At last resort the user can reboot
the system.
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ES |
ES-IS
stands for the End System to Intermediate System. This network
protocol is used by end
systems to announce themselves to intermediate
systems and servers. It is part
of the OSI network model. Escape
key
refers to a key on the keyboard that says
Esc on it. The Escape key is normally located in the upper left-hand corner
of the keyboard. It provides various functions
with different operating systems and
software applications.
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Et |
Ethernet
is the
name of a type of network interface card
and also a type of network standard that
is commonly used for connecting computers.
This LAN is an Ethernet
network. This type of networking standard can be used with practically
any computer platform or operating
system. There are several types of Ethernet
cards. A standard type is the 100-BaseT that can handle up to 100,000,000
BPS. It is capable of connecting 1,024 nodes
to a network. Ethernet
cards are
a type of network interface card that is
made for the Ethernet standard to connect
Ethernet networks. There are several
types of Ethernet cards. The current standard type can handle up to 100,000,000
BPS. It is capable of connecting 1,024 nodes
to a network. Ethernet
networks
are networks based on the Ethernet
local area network standard. This type of
network is capable of connecting 1,024 nodes.
It is very common for connecting computers
in a LAN. This type of networking standard
can be used with practically any computer platform
or operating system. Ethernet
cards do not have to be exclusively used to create an Ethernet network.
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EU |
EUNET
stands for the
European UNIX NETwork. This body is responsible for handling UNIX
networking in Europe.
EUUG
stands for European UNIX Users Group. This body is responsible for helping
users with UNIX
in Europe.
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Ev |
Even
parity is
an error checking method in asynchronous
communications that sets an extra bit to
one or zero depending on if the original number of bits is odd or even.
Event
handlers
are a specific code that goes into effect
when an event occurs within the programming
environment. Events
as a programming term are actions that
occur within the API of a programming environment.
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EW |
EWOS
stands for European Workshop for Open Systems. The OSI
implementation workshop for Europe is one of the three regional OSI implementation
workshops along with AOW and OIW.
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Ex |
Executable
files
are ones that can be used to start an application
or service. The file
attributes or permissions for a file
tell the computer system who is allowed
to execute the file to start it up. Executing
is running
a command or an executable
file that can be used to start an application
or service. The file
attributes or permissions tell the
computer system who is allowed to execute
a command or a run a program from a file. Exiting
is the shutting down of a software application.
This procedure can usually be done by using the file
menu and choosing to exit or quit
the application. Sometimes clicking on
an x on the menu bar of the window will
exit the application. Typing the word exit or quit will usually stop processes
on the command line. When there is
a file that has not been closed or saved
during exiting the application may ask the user
to save the file. Exiting applications usually terminates
all processes and services connected
with them. Exploits
are crucial bugs in software
applications or operating systems
that can be used by hackers or crackers
to gain access to a computer
system over a network
or the Internet. Extensions
for file names are the characters at the
end of the file names after a period or
dot. The file extension can be used to possibly identify the type of file,
though a file does not necessarily have to be the expected type. For instance,
text.txt should be expected to be a text file
as noted by the dot TXT extension. Extensions for domain
names are the dot COM, dot ORG, dot NET, etc. attached to the end
of the domain name. Exterior
Gateway Protocol (EGP) is a reachable routing
protocol used by gateways.
EGP is the protocol used in the core gateway system for the Internet.
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