Operating systems are specialised systems which enable a users to operate their computers as effectively and effeciently as possible. With the implementation of the correct operating system means that operations performed on the specific system will run smoothly. A numerous amount of operating systems exist in order to accommodate the needs of users in regards to their operating systems and requirements of application.

NetWare is a Novell network operating system (NOS) that provides transparent remote file access and numerous other distributed network services, including printer sharing and support for various applications such as electronic mail transfer and database access. NetWare is an operating system which specifies the upper five layers of the OSI reference model and, and runs on any media-access protocol (Layer 2). In addition, this operating system runs on virtually any kind of computer system, from PCs to mainframes. NetWare and its supporting operating system protocols often coexist on the same physical channel with many other popular specialised operating system protocols, including TCP/IP, DECnet, and AppleTalk .

Novell NetWare, was introduced as an advanced operating system software package in the early 1980s based on Xerox Network Systems (XNS), is based on a client-server architecture. Clients (sometimes called workstations) request services, such as file and printer access, from servers in specific operating systems. This operating system software package's client/server architecture supports remote access that is transparent to users through remote procedure calls. A remote procedure call begins when the local computer program running on the client sends a procedure call to the remote server. The server then executes the remote procedure call and returns the requested information to the local client.

The most popular protocols in the Novell NetWare operating system suite are: IPX: Internetwork Packet Exchange protocol- Routing and networking protocol at layer 3. When a device to be communicated with is located on a different network and operating system, IPX routes the information to the destination through any intermediate networks . IPX is similar to IP (Internet Protocol) in the TCP/IP suite. SPX: Sequenced Packet Exchange protocol - Control protocol at the transport layer (layer 3) for reliable, connection-oriented datagram transmission. SPX is similar to TCP in the TCP/IP suite.

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