Bandwidth

Bandwidth in reference to networking is the measure of data transfer.

Latency

Latency is generally considered to be how long it takes for a packet to make a round trip from one point to another.

ADSL

ADSL : Asymmetric Digital Subscriber Line  is a form of DSL.
In the UK all broadband lines use BT’s copper line infrastructure. ADSL is resold by various resellers.
Critical points in choosing an ADSL broadband line include :
1 - Bandwidth ( meassured in mega bits ).
2 - Contention ratio
3 - Latency
4 - Reliability
5 - Guarantees of service […]

Contention Ratio

Contention Ratio generally referes to how many users are potenitially sharing the infrastructure - 50:1 is typical for home ADSL broadband for example or 25:1 is fairly typical for business ADSL users.

SMTP

Simple Mail Transfer Protocol is the defacto mail protocol.
The protocol used today is ESMTP ( but most IT proffessionals still refer to this as SMTP ).
SMTP is a relatively simple text based protocol. SMTP is a push protocol and does not allow pulling of data like pop3 or imap.

crm

Customer relationship management (CRM) in the context of IT software is software that assists to track customers for the purpose of targeting selling and marketing effort on the most profitable customers or potential customers.

KVM - Key board video mouse

A KVM switch (Keyboard, Video, Mouse) is a hardware device that allows you to control multiple computers / servers from one Keyboard, video and mouse.

Firewall

A firewall is a dedicated appliance or software running a computer. A Firewall inspects network traffic passing through it, and allows or denies the traffic based on a predefined rule set.
Examples of Hardware/appliance based Firewalls include :
Cisco Pix
Checkpoint Firewall-1
Soncic wall and draytek also make some fine examples.
Most antivirus products have a software based firewall examples […]

VPN - Virtual Private network

A virtual private network (VPN) is a network tunnelled through another network.
A VPN creates a private network out of the very public inter-network ( internet ). This allows the end user to experience of working “on the network” from home, hotel or anywhere that is connected to the internet.

Command line

Command line is a method of interacting with the operating system through a text based interface.
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