Answer: C) Motion detectors
Explanation:
Motion detectors is the device that is used for detection of moving object in any area. They are used for security purposes by tracking motion or people and alerting the user.It consist of motion sensor for detection of motion and alerting the users or organization about security breach through alarming .
- According to the question,Chief information officer should implement motion detectors to investigate about theft that takes place in company's department on regular basis.Any intervention for company's loss will be alerted through tracking motion of the thief.
- Other options are incorrect because camera is used for recording videos and images. Bio-metric device is used for digital identification of any person to enter into a system. Man-trap is vestibule used for controlling access of a person for security.
- Thus, the correct option is option(C).
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Answer:</h2>
Use case diagram
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Explanation:</h2>
A use case diagram is one of the dynamic diagrams used in Unified Modelling Language (UML). It is used to illustrate the set of actions, services, tasks and functions that a system needs to perform and those to be performed on the system. Use case diagrams help team members of a project to identify the main functions or features of the system as well as users and external systems that will interact with the system.
Use case diagrams have the following features;
(i) System: to depict the application itself. It is represented using a rectangular box.
(ii) Use case: to represent the system's functionalities. It is represented using an oval shape.
(iii) Actors: to represent the users of the system.
(iv) Relationships: to illustrate the relations between the actors and the use case of the system.
<span>Files exist on data storage devices, such as hard disks, DVDs, USB drives, and reels of magnetic tape.
</span>Data storage<span> is the recording (storing) of information (data) and </span><span>these data storage devices use</span> a technology consisting of computer components and recording media used to retain digital data.DVDs, USBs and hard disks are examples for external data storage devices.
Answer: Scanner is the answer
The answer is Biotechnology.
Computers greatly assisted scientists engaged in biotechnology. Biotechnology is simply a technology based in biology. It is the user of living systems and organisms in developing or experimenting new products. In other words, biotechnology is the management of biological systems to improve human life.