Terminal emulation

The Xepr software package that runs the instrument is easy to learn and contains many usefiil features for spectral manipulation and analysis. It runs on a personal computer under the Linux environment so it is possible to gain network access to the spectrometer from any networked computer that has an X-11 terminal emulator. This allows several users to log in and analyze their data while the spectrometer is busy collecting more. 

Overall system requirements such as number of users, locations where the system will be used, and the instruments connected to the system will terminal emulation be used ... 

Client PC user interface software configuration details and terminal emulation requirements Peripheral devices (e.g., printers and backup devices)... 

Operating system resident Local applications Client-server applications Terminal emulation... 

Terminal Emulation software, e.g., WRQ Data tables Workflow Configuration -, Windows 2000, XP,... 

Application layer The seventh, or highest, layer in the International Organization for Standardization s Open Systems Interconnection (ISO/OSI) model for computer-to-computer communications. This layer uses services provided by the lower layers, but is completely insulated from the details of the network hardware. It describes how application programs interact with the network operating system, including database management, e-mail, and terminal emulation programs. 

TCP/IP Acronym for Transmission Control Protocol/Internet Protocol. A set of computer-to-computer communications protocols that encompass media access, packet transport, session communications, file transfer, e-mail, and terminal emulation. TCP/IP is supported by a very large number of hardware and software vendors and is available on many different computers from PCs to mainframes. 

The advent of personal computers and terminal emulation programs has reduced the cost of high quality graphics displays by almost an order of magnitude and probably the majority of users of these public systems now use this type of equipment. 

ChemTalk terminal emulation to run Molecular Design Limited s reaction indexing software REACCS on a mini/mainframe computer for access to centralized structure-based synthetic information ... 

The next version of the structure editor system developed with few major changes in concept The terminal interface was created as a "dumb" terminal emulator with no special formatting capabilities A Tektronix 4010 emulator was created with the ability to emulate only the output features of the 4010 and none of the special input features, such as cross-hairs, since these were never to be used ... 

Terminal emulation or client server requirements for personal computers (PCs)... 

EMU-TEK - Tektronix terminal emulator, hardware supported IBM PC, available from FTG Data Systems, 10801 Dale Street, Suite J-2, PO Box 615, Stanton, CA 90680, U.S.A. 

VersaTerm-PRO - Tektronix terminal emulator, hardware supported Apple Macintosh, available from Peripherals, Computers Supplies, Inc., 2457 Perkiomen Ave., Mt. Penn, PA 19606, U.S.A. 

ChemSketch is a software program developed in-house to draw chemical structures and to retrieve structures from MACCS. It is written in VAX C and will run on any of the VAX CPUs as long as they are running the VMS operating system. ChemSketch currently supports Tektronix 401x, VT-640, and VT-240 terminal emulation. 

The five major areas where microcomputers have made an impact relate to graphics terminal emulation (which was the first area where the influence was felt), structure... 

Products such as EMU-TEK and PC-PLOT have probably revolutionised chemical information in a way which many people do not reaUse. Until emulation packages of this sort became available the only way of using services like CAS ONLINE or DARC in graphics mode was to use very expensive graphics terminals. Terminal emulation packages offer a cheaper alternative and as a result have increased usage of CAS ONLINE and other services. 

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