Answer: See explanation
Explanation:
Systems analysts are the people who analyse how a particular software, or IT system will be able to fit and meet the needs of their company or client. They are charged with the responsibility of writing requirements for new systems.
Some if the skills required for a system analyst include:
• Flexibility
• Strong analytical skills
• Adaptability
• Initiative
• Interpersonal skills.
• Attention to detail.
• Teamwork skills.
• Written and verbal communication skills.
Answer:
An operating system is a software that allows a user to run other applications on a computing device. The applications generally are not designed to interface directly with hardware, almost all of the applications are written to run on an operating system, in order to become independent of the hardware design.
The main function of an operating system are:
- manage the hardware resources of a computer: central processing unit, memory, disk drives, and printers.
- establish a user interface to facilitate the interaction human-computer.
- execute and provide services for software applications.
Grace should use the SUM function in order to add the values from a list of regional sales data.
c) sum
<u>Explanation:</u>
The average function would have returned the average of the list of regional sales data. The average is calculated by dividing the sum of all entries by the total number of entries.
The maximum function would have returned the maximum value from the list of regional sales data.
The IF function is used to return a result based on some comparison. Grace cannot use IF function as she is not making any decision based on some comparison.
Communications in which data can be transmitted intermittently rather than in a steady stream.