IP Solutions - Glossary of Terms PING
The PING command sends TCP\IP packets to the designated computers. If PING is successful, TCP/IP sends the packet back. Use PING that the configuration is correct, that local computers are communicating with each other and that remote computers are communicating with local computers.
Plug and Play
A windows specification that makes it easier to install adapter cards and other hardware. All you need to do is insert the hardware and turn windows on. Windows automatically configures the IRQ, DMA and other settings for the hardware.
POP (Point of Presence)
The e-mail host name. The host is the server that holds the e mail messages for you until you log on and get your messages.
Port The device that enables data to transfer to and from a computer or oher piece of of equipment.A parallel port, for example enables the computer to send printing data across a cable to the printer.A serial port enables information to travel to a modem or other devices.
Port
The device that enables data to transfer to and from a computer or other piece of equipment. A parallel port, for example enables the computer to send printing data across a cable to the printer. A serial port enables information to travel to a modem or other devices.
Port (TCP)
In TCP/IP and UDP networks, a port is an endpoint to a logical connection and the way a client program specifies a specific server program on a computer in a network, some common ports are HTTP at Port 80 and FTP ports at 20(data) and 21(control).Some ports have numbers that are preassigned to them by the IANA.
Post
A term for sending message to a newsgroup or other service.
Power Line Network
In a power line network, you use electrical outlets in your home to attach computers for sharing files, printers, internet accounts and peripherals. Its important to note that the transmission speeds for power line network are slow. Data transmission speeds are around 350 Kbps.
PPP (Point-to-Point Protocol)
This protocol is used with remote access, because it enables computers to load other protocols-such as TCP/IP, NetBEUI, and so on in addition to the PPP.
PPTP (Point-to-Point Tunneling Protocol)
A protocol that enables you to have secure access to a virtual private network.
Presentation Layer
One of the ISO/OSI layers. The presentation layer identifies the data is formatted.
PRI (Primary Rate Interface)
PRI lines are a type of ISDN line that is more expensive than BRI because of a higher bandwidth connection. PRI supplies speed up to 1.5Mbps.
Proprietary Describes a protocol or communications Registry
The area of the windows operating systems that contains all configuration files for the computer users. For example, the registry lists user preferences. desktop colors, fonts and program settings. If the registry becomes corrupted, Windows might stop working altogether.
Remote Access Refers to the process of attaching to a network Sales and Support, Call: 1300 ADI ADI Technical Support, Call: 1800 220 345
www.adiglobal.com/au 185 Read-only Access
Sharing option that enables others to open and view folders, or open, view and copy files, however read only access doesn't enable others to modify a file or delete anything.
Real Time
Describes an event or process that is currently taking place .A good example is when, you are talking on the telephone to someone. you are talking in real time. When you leave a message on someone’s answering machine and that person hears the message later, that person is not hearing in the real time.
Refresh Rate
Describes how many times per second the image is refreshed, or redrawn on the screen. The faster the refresh rate, th lesser flicker you see on the screen. The default setting for most monitors is 60 Hz, but you should use 75 to 85 Hz to reduce flicker and eye strain.
Resource
Any item or component that can be shared with other computers on the network, including files, drives, folders, printers, CD- ROM drives, Zip drives, and tape drives, among others.
Rights
Characteristics given by a user or administrator on the network to prevent or allow access to files on the network. Common rights include all, execute, read only, write, and so on.
Ring Topology
A networking layout in which computers are connected by a closed Loop, or ring. The ring topology uses a hub to redirect network packets.
RJ-11
A four-wire connector used to join a telephone line to a wall plate or a wall plate or a communication peripheral, such as a modem.
RJ-45
An eight-wire connector used to join twisted- pair networking cable.
ROM (read-only memory)
A chip that permanently stores data, also called firmware.
that was developed by a company rather than one that follows established standards.
Protocol
Part of software is a language that the computers can use to communicate, called a protocol. Windows contains three such protocols from which you can choose.
Proxy Servers
These servers control what the user can and cannot access on the internet. Proxy servers might also reduce user wait times by relieving bandwidth congestion, offer network security features, log events, and so on. Some proxy server software installed on a dedicated computer that acts as a gateway and barrier between the LAN and the internet.
QoS
Short for quality of service. QoS is Microsoft’s addition to windows 2000 and XP, although it is used by other manufacturers, it enables a smoother flow of traffic on the network. An administration can set higher and lower priorities on a network using the QoS settings.
RAM (Random Access Memory)
Temprory memory in a computer. The memory stores the data related to a task that the processor is currently dealing with.
RAMDAC (RAM Digital-to-Analog Converter)
In a video card, RAMDAC is the electronic component that changes the digital video signal of the card to a signal the monitor can read. RAMDAC speed affects the speed of images appearing on the screen. The standard RAMDAC is 135 Mhz, although some cards are faster. The faster the RAMDAC the better.
RARP (Reverse Address Resolution Protocol)
One of the TCP\IP protocols, it translates physical network addresses to into IP addresses.
Repeater
A network device that boosts and amplifies an analog signal in the network.
Repeater Functions
Refer to the retransmission of network packets when a collision or timing problem takes place.
Resolution
Describes the number of pixels a device such as a scanner or printer applies to an image. Resolution is measured by a grid, such as 300-300 pixels (or dots) per square inch. The higher the resolution, the better the image output and the more expensive the scanner.
Remote Registry Service
A network service that enables programs such as the System Policy Editor or System Monitor to change the Registry in a network computer.
from another location and accessing resources from the remote computers.
Remote Administration
Enabling remote administration allows a user to create, change and monitor shares on the computer. Windows lets you assign a password to this permission so that only a person who knows the password can perform these tasks. The person who knows the password can monitor the workstations from any computer on the network.
Remote File Transfer
Another common method of remote access to file transfer. File transfer involves uploading a file to or downloading a file from the remote computer.
Remote Node
The most common method of remote access is when a computer connects to an office or corporate network. The remote computer user accesses any of the resources on the office network and works as if he or she were actually in the office, sharing programs and files with coworkers.
Services
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