Primary storage is usually termed as the viotile storage unit directly accessible as the main device to the CPU. So the main form of primary storage is RAM. It is the main storage unit where you keep your long term memory for your computer
Answer: Planned data redundancy
Explanation: Planned data redundancy is the problem that occurs in the single database where the same data unit gets stored in two different places. Data redundancy can acquire unnecessary space of the database.
Planned data redundancy can effect the processing and make modification of the data difficult. It can also create the corruption in the database .Thus , the definition mentioned in the question of data redundancy.
Answer: Control
Explanation: Communication channel is the medium created for the process of the communication.These channel let the source to destination communication in a cycle so that message can be send and received respectively.
Control in the branch of communication channel is used for the handling of the communication limit of the message that is being sent and received .It puts a limitation to the extent message can be read, recorded ,movement of resource and other facilities.
