Answer:
A. A1
Explanation:
Worksheet's Columns are named with Alphabets. i.e. A,B,C,D,E....
And Worksheet's rows are named with numbers. i.e. 1,2,3,4,5....
So the intersection of first row number as "1" and First Column name as "A" is A1 as worksheet displays column name first and then row number.
Answer: There are many different types of user interfaces. To decide on the user interface depends entirely on the requirement of the client.
Explanation:
There are different types of interfaces such as command line user interface, graphical user interface, menu based, form based. Therefore to choose among them it depend on the requirement specified by a client. Mostly nowadays GUI is used. to maintain records form based is preferred. For system software CUI is better due to decrease its pressure on the processor. Networking is also both GUI and CUI. So it depend mainly on the type of application developed , client requirements, power consumption based on its dependence on processor power.
