| computer terminals | Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (12 Dec 1998) |
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| axon terminals | The somewhat enlarged, often club-shaped endings by which axons make synaptic contacts with other nerve cells or with effector cells (muscle or gland cells). As isolated, by homogenizing brain or spinal cord, they contain acetylcholine and the related enzymes. Terminals contain neurotransmitters of various kinds, sometimes more than one. These can be demonstrated by chemical analysis and immunocytochemical methods. See: synapse. Synonym: axonal terminal boutons, end-feet, neuropodia, pieds terminaux, synaptic boutons, synaptic endings, synaptic terminals, terminal boutons, bouton terminaux. (05 Mar 2000) |
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| presynaptic terminals | The distal terminations of axons which are specialised for the release of neurotransmitters. Also included are varicosities along the course of axons which have similar specializations and also release transmitters. Presynaptic terminals in both the central and peripheral nervous systems are included. (12 Dec 1998) |
| synaptic terminals | The somewhat enlarged, often club-shaped endings by which axons make synaptic contacts with other nerve cells or with effector cells (muscle or gland cells). As isolated, by homogenizing brain or spinal cord, they contain acetylcholine and the related enzymes. Terminals contain neurotransmitters of various kinds, sometimes more than one. These can be demonstrated by chemical analysis and immunocytochemical methods. See: synapse. Synonym: axonal terminal boutons, end-feet, neuropodia, pieds terminaux, synaptic boutons, synaptic endings, synaptic terminals, terminal boutons, bouton terminaux. (05 Mar 2000) |
| radiographic image interpretation, computer-assisted | Computer systems or networks designed to provide radiographic interpretive information. (12 Dec 1998) |
| radiotherapy, computer-assisted | Computer systems or programs used in accurate computations for providing radiation dosage treatment to patients. (12 Dec 1998) |
| radiotherapy planning, computer-assisted | Computer-assisted mathematical calculations of beam angles, intensities of radiation, and duration of irradiation in radiotherapy. (12 Dec 1998) |
| computer | A programmable electronic device that can be used to store and manipulate data in order to carry out designated functions; the two fundamental components are hardware, i.e., the actual electronic device, and software, i.e., the instructions or program used to carry out the function. (05 Mar 2000) |
| computer-aided design | The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics. (12 Dec 1998) |
| computer-assisted instruction | A self-learning technique, usually online, involving interaction of the student with programmed instructional materials. (12 Dec 1998) |
| computer communication networks | A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (12 Dec 1998) |
| computer graphics | The process of pictorial communication, between human and computers, in which the computer input and output have the form of charts, drawings, or other appropriate pictorial representation. (12 Dec 1998) |
| computer literacy | General learning, knowledge, and fluency with computer terms; also, becoming familiar with how computers operate and how they are programmed. (12 Dec 1998) |
| computer model | A mathematical representation of the functioning of a system, presented in the form of a computer program. Synonym: computer simulation. (05 Mar 2000) |
| computer peripherals | Various units or machines that operate in combination or in conjunction with a computer but are not physically part of it. Peripheral devices typically display computer data, store data from the computer and return the data to the computer on demand, prepare data for human use, or acquire data from a source and convert it to a form usable by a computer. (12 Dec 1998) |
| computer security | Protective measures against unauthorised access to or interference with computer operating systems, telecommunications, or data structures, especially the modification, deletion, destruction, or release of data in computers. It includes methods of forestalling interference by computer viruses or so-called computer hackers aiming to compromise stored data. (12 Dec 1998) |