Access point - 

Bandwidth - The maximum rate at which data can be transferred from one computer/network to another.

Cache - A cache stores data on a device to speed up future retrievals.

Cloud - Cloud computing involves storing and accessing data over the internet instead of using your computer hard drive.

Cookie - A piece of code downloaded from a server to keep track of user preferences.

CPU - Hardware component responsible for 

CPS - A Cloud Printing Service allows users to print from any device on a network.

Database - A collection of data organized for fast search and retrieval by computers/programs.

DHCP - Dynamic Host Control Protocol automatically assigns and manages IP addresses for devices on a network.

DNS - Domain Name System is a protocol which makes IP addresses more friendly by linking them to names.

Domain Name - A name used to identify one or more IP addresses such as www.example.com. 

Encryption - The process of converting data into an unrecognizable form to protect it from being seen by the wrong people. 

Ethernet - The traditional method for connecting to a local area network (LAN).

FTP - File Transfer Protocol is a method of transferring files from one host to another on the internet.

Firewall - A barrier designed to protect computers and networks from outside connections which may be untrusted.

Gateway - A piece of hardware which acts as a gate between two networks, such as a router or firewall.

Hostname - A label assigned to hardware devices connected to any network.

HTTP - Hyper Transfer Protocol for transferring text, images etc.. across the world-wide-web.

IaaS - Infrastructure as a Service, a type of cloud computing which provides "virtual" resources over the internet.

IP Address - A unique string of numbers identifying individual computers connected to a network via internet protocol.

ISP - Internet service provider (AT&T, Comcast etc..)

Lan - Local Area Network to connect computers in an office building, school etc..    

Localhost - The local computer a program is running on.

Gigabyte - A unit of stored data equal to one thousand million (109) bytes, or simply 1000 megabytes.

Malware - A short term for "malicious software" which can include spyware, viruses, and rootkits.

Megabyte - A unit of stored data equal to one million bytes.

MSP - Managed Service Provider, a company which manages a company's IT remotely.

NAT - Network Address Translation, the process of assigning a public IP address to a computer or group of computers within a network.

Network Adapter - A hardware component which connects a computer to a network (wired or wireless)

Network Hub - A device which allows multiple computers to communicate with each other over a local area network (using ethernet).

Network Interface - A hardware or software point of communication between a computer and a public/private network.

Patch - A set of updates designed to fix or improve a computer program.

Port - Usually refers to a connection on a piece of computer hardware to connect devices such as printers, mice, hard drives etc..

Protocol - TCP, UDP 

RAM - Random Access Memory, is a common type of computer memory which is found in PCs, Printers, Smartphones and similar devices. 

Remote Desktop - Software which allows users to connect to another computer and see/interact with it as if it were local to them.

Router - A device which connects computer networks.

SAN - Storage Area Network, a secure and high speed network of storage devices.

Serial Port - A type of connection used for peripherals such as mice and older printers which transfers one byte at a time.

SID - Service Set Identifier, a unique name used to identify useres or groups of users on windows NT/2000.

SMTP - Simple Mail Transfer Protocol

SSL - Secure Sockets Layer, an extension of HTTP which is used for secure communication over a network such as the internet.

SMB - Server Message Block Protocol, allows windows computers to share files, printer access etc.. over the same network.

TCP/IP - Transmission Control Protocol/Internet Protocol

TLS - Transport Layer Security, An alternate security protocol to SSL.

Two Factor Authentication - A security measure in wich access is granted not just with a password but with some other evidence the user has with them, such as their mobile phone.

USB - An interface which connects peripheral devices such as mice, keyboards and printers to a host controller, such as a computer.

URL - Also known as a web address such as

Virtualization - The process of dividing the resources of a device (server, harddrive, network) for multiple human users, applications or other devices to interact with as if a single resource.   
VoIP - Voice Over Internet Protocol refers to the transmission of voice and multi-media over IP networks such as the internet.

VPN - Virtual Private Network, 

WAN - Wide Area Network, A telecomunications network which interconnects multiple local area networks (LANs).

WLAN - Wireless Lan, a network which allows devices to connect and communicate wirelessly.

WPA - Wifi-protected access