Peripherals Refers to computer devices Printer. that are not part of the Scanner. essential computer (i.e. the Facsimile (fax). memory and microprocessor) Graphics tablets. but can be connected to it and Cameras. they can either be external Assistive devices. and internal. Local Area Network A network that interconnects Ethernet. (LAN) devices over a geographically Token ring. small area, typically in one Virtual LAN (VLAN). building or a part of a building. This type of network enables the sharing of resources such as printers, scanners and the exchange of any type of data. Wide Area Network (WAN) A data network extending a Frame relay. LAN outside a building or Asynchronous transfer beyond a campus. This is mode (ATM). typically created by using bridges or routers to connect geographically separated LANs. Network Devices/Standards Network devices/standards Hub. enable the connection Switch. mutable LANs/WANs for Router. exchanging information. Network Interface Card Connection can be (NIC). permanent, via cable, or Transceivers. temporary, through telephone Gateways. or other communications links. Integrated services digital The transmission medium can network (ISDN). be physical (e.g. fibre optic Digital subscriber line cable) or wireless (e.g. (DSL). satellite). Firewall. Video conferencing provides Bridge. communication across long Codec. distances with video and Receiver. audio contact that may also include graphics and data exchange. Digital video transmission systems typically consist of camera, codec (coder decoder), network access equipment, network and audio system. Component Framework Service Area The Component Framework Service Area (Figure 4) defines the underlying foundation and technical elements by which service components are built, integrated and deployed across component-based and distributed architectures. The component framework consists of the design of application or system software that incorporates interfaces for interacting with other programs and for future flexibility and
Peripherals Refers to computer devices that are not part of the essential computer (i.e. the memory and microprocessor) but can be connected to it and they can either be external and internal. Printer. Scanner. Facsimile (fax). Graphics tablets. Cameras. Assistive devices. Local Area Network (LAN) A network that interconnects devices over a geographically small area, typically in one building or a part of a building. This type of network enables the sharing of resources such as printers, scanners and the exchange of any type of data. Ethernet. Token ring. Virtual LAN (VLAN). Wide Area Network (WAN) A data network extending a LAN outside a building or beyond a campus. This is typically created by using bridges or routers to connect geographically separated LANs. Frame relay. Asynchronous transfer mode (ATM). Network Devices/Standards Network devices/standards enable the connection mutable LANs/WANs for exchanging information. Connection can be permanent, via cable, or temporary, through telephone or other communications links. The transmission medium can be physical (e.g. fibre optic cable) or wireless (e.g. satellite). Hub. Switch. Router. Network Interface Card (NIC). Transceivers. Gateways. Integrated services digital network (ISDN). Digital subscriber line (DSL). Firewall. Video conferencing provides communication across long distances with video and audio contact that may also include graphics and data exchange. Digital video transmission systems typically consist of camera, codec (coder decoder), network access equipment, network and audio system. Bridge. Codec. Receiver. Component Framework Service Area The Component Framework Service Area (Figure 4) defines the underlying foundation and technical elements by which service components are built, integrated and deployed across component-based and distributed architectures. The component framework consists of the design of application or system software that incorporates interfaces for interacting with other programs and for future flexibility and