Answer: Please see below as the answer is self-explanatory
Explanation:
Digital phones, normally uses a keyboard, with the digits 0-9, and special characters like # and *.
When the caller presses any keyboard, an electronic circuit within the phone generates two pure sinusoids, of frequencies within the vocal bandwidth (between 300 Hz and 3 khz, roughly), which identifies uniquely (as decoded by the receiving switch) which was the key pressed.
In this way, the switch reconstructs the phone number called, separating country code, area code and the local number as it receives the tones.
This system is called DTMF (dual tone multi frequency).
Answer:b)Conversion plan.
Explanation:Conversion plan is type of plan in which the the technique is followed by converting the data from the present system to another system's hardware and software surroundings.
The technique follows three basic steps in the conversion plan is software installation plan, hardware installation plan and conversion of data. Thus the correct option is option(b).
Answer:
In IT sector IT manager decides to have a JDA(joint Application Development) session first he has to keep the leader for it, The leader must be well educated and highly professional based experienced regarding the sector that he is dealing with it. JAD team will participate in discussions and plan to develop the criteria etc., There must be minimum of 3 to 4 members are needed for the discussion and provide support. The main agendas of the JAD session are
Agenda and different stages:
First they introduce the JAD members and see the requirements. They discuss the reason for the project and management. After that they provide clear view on the project and overview and discuss up to the clarification. Review the project and divide team members in to 2 to 3 members and allocate for the particular work. Discuss and develop all requirements and provide prototypes and all. finally report and prepare documentation and send it to the JAD team.
The main roles of the JAD team are: Managers who are provided for this team must research and provide the information on the particular project. Users who provide d information must see the line and developing level. The system analysis and object it managers look after issues, backups etc.,
Explanation:
See attached picture.
To make choices/decisions.
The principle of scarcity forces people to make choices or decisions about how to allocate resources efficiently. These choices are made to satisfy basic needs and as much additional wants as possible. This principle of Scarcity in economics further states that, limited goods and services are available to meet unlimited wants. Even resources considered plenty and free in monetary, somehow, are scarce in some sense. It is in the capacity of an individual to buy some or all commodities as per the available resources with that individual.
