The value of E[2][1] is fish
An OS is a set of programs that lies between application software and the hardware. An OS is software that controls the hardware. It provides the interface between the hardware and the user. The most important program in the OS is the kernel, it manages the OS and most of it remains in memory.
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Answer:
Explanation:
First, the thing that you should do is to install two hard disks, one on a different disk controller. This will prevent loss of data if one of the disks or disk controller suddenly fails. The next thing that you should do would be to create a RAID 1 volume for the system volume. This will mirror the disks, and drastically reduce redundancy between them as well as increase the disk access performance up to double what it was before. This would be the best course of action in order to accomplish the requirements that you need.
Answer:
One to many relationship
Explanation:
Since the customer can make many payments, and each payment is made by only one customer, this relationship is one-to-many relationship (1:M).
If you would like to draw the ER diagram, see the attached file.