problem 1: describe the memory hierarchy. Give characteristics of group of memory at each   level.

problem 2: Describe differences between followings:

i) Compiler and interpreter

ii) Spooling and buffering

iii) Message switching and Circuit switching

problem 3: (a) describe ISDN? Also describe various services provided by ISDN.

(b) What is computer virus? What are different kinds of computer virus? Describe how you could protect your machine from computer viruses.                                    

problem 4: Describe how you would handle following problems                         

(i) You have to insert header and footer in presentation.

(ii) You required to perform mail merge

(iii) You have to to insert calendar in the presentation

(iv) You have share a newly created folder with other users.

(v)  You have to change printer settings                                           

problem 5: (a) Describe how graph is created in MS-Word.                  

(b) What are Macros? prepare down the steps for recording, running and editing macros, with the help of an ex.