a device used in computer control systems that is attached to the end of a robot arm so that the arm can perform tasks such as tightening bolts, spray painting and welding.
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Remote control
An input device that allows the user to control other devices from a distance. It is most frequently used with home entertainment systems.
Batch process
process where specific amounts of raw materials are combined together and mixed for a certain period of time e.g. payroll applications
Continuous process
process whereby variables do not tend to fluctuate by a great deal but the conditions must be continuously maintained e.g. the temperature in a refrigeration process
Discrete process
process whereby several items are produced one at a time, with measured time gaps in between each items e.g. robotic arms fitting in the wheels in the manufacture of cars
Programmable Logic Controller(PLC)
A type of computer or microcomputer that is used for a single purpose. It is able to accept analogue and digital inputs, and a set of logic statements is used to compare the input with a pre-set value. Depending on the result, it activates the output devices.
Proportional Integral derivative(PID)
An algorithm that is an integral part of closed loop computer controlled systems. It calculates the difference between the input value and the pre-set value, and then causes the programmable logic controller (PLC) to make proportional changes to the output so that the pre-set value is eventually reached.
Control Software
Computer programs that allow computers or microprocessors to automatically control a system
Embedded Web Technology(EWT)
Broadband
A high-speed method of transmitting data using a number of data channels through one cable, giving users faster access to the Internet together with shorter download times
Virtual private network(VPN)
The use of publicly accessible networks to communicate private information. It is not physically private but involves the use of security methods that make it practically impenetrable.
Personal Digital Assistant (PDA)
A handheld computer fitted with a touch screen that is activated by using a detachable stylus. Text is entered by pressing a keyboard that appears on the screen
Remote access services(RAS)
Services that allow people working away from home to access the desktop on their own PC remotely
Local area network(LAN)
A number of computers connected together to share software and hardware either within a small geographical area or within a single building
Wide area network(WAN)
A network formed by connecting several local area networks together using routers or modems
VOIP
The use of the Internet to send voice data in the form of digital data packets using Internet protocols
Hyperlinks
A reference within an electronic document to another place in the same document or to a different document. Hyperlinks are the foundation of any hypertext system, including the worldwide web. Hyperlinks can be used to open links within different applications packages
Web Authoring package
Software used for creating web pages
CAI
Computer-aided instruction - the process where a computer takes charge of the learning process and acts independently of any teacher input
CAL
Computer-aided learning - the use of computers and ICT to support the teacher in the learning process. The teacher is in control and uses ICT as a resource around which a lesson might be planned.
CBL
A term used interchangeably with computer-aided learning
CMC
computer-mediated communications - the collective term given to communication services such as e-mail, instant messaging and chat rooms
CAA
computer-aided assessment - Any aspect of assessing student's work using a computer
Instant messaging
The exchange of text messages across the Internet in real time between two or more people logged into a particular instant messaging service
Master file
A file that holds all fixed data but can be updated periodically using a transaction file
Transaction file
A working file used in database management systems that contains transactions that, when used together with a master file, produce the required output and an updated master file.
- End effectors
- a device used in computer control systems that is attached to the end of a robot arm so that the arm can perform tasks such as tightening bolts, spray painting and welding.
Can find anymore videos to embed?