is a small handheld computer that performs simple tasks such as taking notes, scheduling appointments, and maintaining an address book and a calendar PDA.
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Explanation:</u></h3>
Personal Digital Assistant is the full form for PDA. PDAs are the computers in smaller size. They perform all works that are performed by a computer. They help you in viewing all the documents that you need, scheduling all your works,etc. They act as a mini sized computer that you can take where ever you go.
Using PDAs you can easily schedule any tasks, take notes, maintain all your contacts in address books,etc. Even though the markets of PDAs is not having higher demands because of the existence of i phones and other devices that are identical to i phones, there are still some usages and demands for PDAs. These are used in industries and businesses.
Answer:
all cells in the B column of any worksheet in this workbook
Explanation:
It seems each worksheet covers total expenses for each month, and hence workbook must have 12 such with one month for each worksheet. Also, the 3D range is a special option in Excel to reference all cells or a selected group of cells for all the worksheets. However, it should be all B cells as B2: B4 apart from this, others in B column also has expenses. And hence, the above option is the correct one.