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Instructional Aids

I enjoyed in teaching aids lecture and I benefited so much from it because it identified the Instructional aids and it is benefit to me as a teacher in the future and how it's easier for students to understand the lesson.

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Computer software

Computer software, or just software, is a collection of computer programs and related data that provides the instructions for telling a computer what to do and how to do it. Software refers to one or more computer programs and data held in the storage of the computer. In other words, software is a set of programs, procedures, algorithms and its documentation concerned with the operation of a data processing system. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast to the old term hardware (meaning physical devices). In contrast to hardware, software "cannot be touched".^[1] Software is also sometimes used in a more narrow sense, meaning application software only. Sometimes the term includes data that has not traditionally been associated with computers, such as film, tapes, and records.

Computer network

 A computer network, or simply a network, is a collection of computers and other hardware interconnected by communication channels that allow sharing of resources and information.^[1] Where at least one process in one device is able to send/receive data to/from at least one process residing in a remote device, then the two devices are said to be in a network. A network is a group of devices connected to each other. Networks may be classified into a wide variety of characteristics, such as the medium used to transport the data, communications protocol used, scale, topology, benefit, and organizational scope.

computer virus

A computer virus is a computer program that can replicate itself^[1] and spread from one computer to another. The term "virus" is also commonly, but erroneously, used to refer to other types of malware, including but not limited to adware and spyware programs that do not have a reproductive ability.
Malware includes computer viruses, computer worms, Trojan horses, most rootkits, spyware, dishonest adware and other malicious or unwanted software, including true viruses.

Computer security

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Computer security is information security as applied to computers and networks.
The field covers all the processes and mechanisms by which computer-based equipment, information and 
services are protected from unintended or
 unauthorized access, change or destruction.
 This included not only protection from unauthorized activities or untrustworthy individuals, but also from unplanned events and natural disasters.