Answer:
Relative cell reference.
Explanation:
Microsoft Excel is a software application or program designed and developed by Microsoft Inc., for analyzing and visualizing spreadsheet documents.
A spreadsheet can be defined as a file or document which comprises of cells in a tabulated format (rows and columns) typically used for formatting, arranging, analyzing, storing, calculating and sorting data on computer systems.
A relative cell reference can be defined as a cell whose reference is mainly relative to the location of the cell.
In Microsoft Excel, the cell reference is considered to be a relative reference by default.
Hence, the cell address A4 in a formula means it is a relative cell reference and when the formula is copied, the reference in the formula will change.
For example, if you refer to cell A4 from cell D4, it means you're pointing to the cell that is three (3) columns to the left of the same row i.e D minus A (D - 4).
Email headers contains information about email
Answer:
There is a need for a microphone and a speaker in the form of a headset for privacy, also, the conventional keyboard and monitor screen. For information security, a configured firewall is recommended to prevent hacking.
Explanation:
Input and output devices are tools used by an operator of a computer device to give instructions and monitor results respectively.
Jason would need a headset, which has a speaker for hearing and a microphone for speaking to the client on a video conference call. These I/O devices are readily available on some personal computers. Every computer system has a keyboard and a monitor, this is also useful for Jason for communicating with his client.
