MCQ

                                                      Sort Questions & Answer.

1 The difference between memory and storage is that memory is TEMPORARY and storage is                       PERMANENT. 

2. Which of the following holds then ROM, CPU,RAM and expansion cards?

        Mother board.

3. The lanuage that the computer caan understand and execute is called?

       Machine Language

4. A floopy disk contains

     Circular tracks and Sectors.

5. Information retrieval is faster from Magnetic Tape but slower than Floppy disk, Hard disk, CD-ROM.

6.The widely used code in data Communication is EBCDEC

7. Fortran Language is developed by John Backus and IBM. in 1957.

8. OMR (Optical Mark Recognition & Optical Mark Reading) is a Secondary storage device.

9. 1 kilo bits is equal to 1000 bits.

10. During Data Processing, in a computer system, the actual execution of the instructions takes place in the CONTROL UNIT.

11. RAM  is VOLATILE, where as Hard disk , Floppy disk, Magnetic disk are NON-VOLATILE                  MEMORY.  

12.CD-ROM driver uses Electronic Storage Technique.

13. Application programs best describes the term software.

14. Floppy Disk is an example of DIRECT access storage.

15. Computer is general purpose machine that manipulates  facts according to a set of instructions.

16. Both data integrity and system security are required to portect a person's right to privacy.

17.Register are high speed Memory.

18. Animation is an important component of multimedia.

19. Laser Printer is most commonly used to output graphics in hard copy form.

20. Byte is used to measure computer memory which is equal to eight bits.

21. OCR can be used to input printed text.

22. Main memory stores Data ,Program and Results or any kind of information.

23. A small terminal is one which Has inbuilt processing capability. 

24. A laser printer uses Raster scan.

25. A plotter is output device to produce drawings and graphics

26. In a hard disk , the 0 track is the outermost

27. Interpretation of instructions in a computer is done by CONTROL UNIT.

28. A CD-ROM is an optical ROM.

29. Software designed for a specific purpose is called as Application SOFTWARE.

30.  A language translator is best described as A SYSTEM SOFTWARE.

31. A Floppy disk is organized as Tracks and Sectors.

32. Optical storage technique is used CD-ROM drive

33. A top-down approach is also known as?

          STEPWISE DESIGN

34. Different modules can be written by different people, thus

    SAVING TIME

35. The sum of the smaller solutions will solve the overall problem. This divide and conquer approach             is called:- TOP-DOWN DESIGN

36. The development of an algorithem is a key step in solving a problem.

          Algorithem.

37. Which steps of an algorithem  determine both the starting and ending points for solving the problem?                      Analyse the problem.

38. In C Structure is combination of SAME or DIFFERENT datatype.

39. In C  only VARIABLE is declared in side the Structure.

40. The initialization of member variable Inside the structure is not permitted.

41. In C objects can directly access the data members of the Structure.

42. Using Class or structure , a programmer can merge one or more dissimilar data types and a new custom data types can be created.

43. The mechamism of restricting assess of data outside the class is called as DATA HIDING and INCAPSULATIN.

44. In C Structure has following limitation.

   * Functions are not allowed as member of structure.

   * Direct access of Data members is possible.  So , by default all the structure members are public . Hence ,Security of data  or data hiding is not provided.

*The Struct datatype is not treated as built-in type; that is the use of struct keyword is necessary to declare object.

* The data member cannot be initialized inside the Structure.

*In c++ DATA MEMBERS & MEMBER FUNCTIONS can be declared in two sections.

* In c++  object cannot directly access data member and MEMBER FUNCTION declared in private section. The private members of a class can only be accessed by a public member function of the same class.

* In C++ its possible to access private member  variables directly like public member variables provided that the class should have at least one public member variable.

* In C++ both the private and public member variables are stored in CONSECUTIVE MEMORY locations in the memory.

* By applying increment (++) and decrement operations on pointer, we can access all private and public member variables of class.

*Defining objects of Class data type is known as class INSTANTIATION.

* A object is an abstract unit with the following properties:-

     (a) It is individual.

     (b) It points to a thing, either physical or logical that is identifiable by the user.

     (c) It holds data as well as operation method that handle data.

     (d) Its scope is limited to the block in which it is defined.

*Member function can be defined as  :-

         (a) Private or public section

          (b) Inside or outside the class.

* The member function defined inside the class is treated as INLINE function.

*The earrors that can be pointed out by the compiler are called SYNTAX ERRORS.

*Linux is an open source operating system.

*An optical mark reader (OMR) is a SCANNER.

*To create large size drawing , architects and engineers often use a device called a PLOTTER

 *Interpreter analyse each source statement every time it is to be executed.

* Laser printer resolution is specified in terms of DPI.

* An operating System is a collection of Software routines.

*Printer can be classified by the method of there PRINTING.

*Intermediate results of processing are held in a STORAGE UNIT.

* LIGHT PENS and joysticks are both pointing devices.

* ROM is also used to store trigonometric functions.

* Even through the power supply is on, the RAM may lose its stored information, due to Virus.

* A small terminal has in-built processing capability.

* Fetching of an instruction for execution is done by the control unit.

* Partition table is found in hard disks.

* A SPEECH SYNTHESIZER converts text information into spoken sentences.

* The combination of the column letter and row number for a cell in an excel worksheet is called a CELL REFERENCE.

* In its default setting, workbook is made up of sheets and the number can be extended to:- 3,255.

*If the tab 2 sheet 1(2), it means that you are on the :- Second sheet carrying the worksheet of the sheet    one.

*The entire worksheet in Excel can be selected by CTRL + SHIFT + SPACEBAR

*Function(s) shown by the Autocalculate area of the status bar are Minimum,Maximum, Count.

*Once a range has been named, you can go to a range:-

            (a) By selecting ranges using the name box.

            (b)By selecting ranges using the F5 key.

*In excel,each sheet in a workbook is displayed as TAB.

*A range of worksheet is referred by:-

           Listing the first cell reference in the range, followed by a colon and then the last cell referance in a range as in B3:E11.

*The purpose of AutoSum is to 

      (i) total the rows or columns in a range nearest to the current cell.

      (ii) Total any range that you select

      (iii)  Add grand totals to a range containing other totals .

*Multiple non adjacent ranges can be selected in Excel.

*You can move the active cell within a selected range.

*For select an active column press SHIFT + SPACEBAR.

*For select an active Row press CTRL + SPACEBAR.

*Sheet Tab is displayed when you select split a Sheet.

*CTRL + . (dot) is used for move the active cell clock wise.

* To display the active cell when it is not visible press CTRL + BACK SPACE.

* To insert a new sheet in a workbook press SHIFT +F11.

* The name of sheet can be upto 31 characters long.

*AutoSum is used in excel to total rows and / or columns.

*LILO is used for MULTIBOOT .

*The topmost bar in any application window is the TITLE BAR. It displays the name of the document or application.

*The ATTRIB command will set or remove the read-only ,archive,system and hidden attributes.

* The purpose of MOVE command is to :-

              Move one or more files to the location you specify.

              Rename directories.

* An application can be opened through shortcut on desktop by:-

    (i) Double clicking on its shortcut.

    (ii) Right clicking and choosing "Open" Option.

     (iii) Selecting the icon and pressing Enter key.

* Internal commands are those that have been built into MS-DOS.

* At the time of booting , Internal command are automatically loaded into memory.

* Internal commands are executed instantly without referring to the disk.

* Windows Explorer is a file management programs that you can use to:-

   a. View and change the folder / File structure of your disks.

   b. View and change the contents of your folder and files.

   c. Move, copy, rename, create and delete folders and files.

* GUI is used as an interface between:-

                            Software  and User.

* Linux components include

             (i) Kernal

             (ii) File system and user programs

              (iii) Shell.

* DISK Defragmeter is a System tools in Windows.

* Linux is an open source operating System.

* Formatting of all the partitions or mount points is a must for Linux installation.

* Grep Command in Linux is used to search for lines that contains a specified pattern in a specified file.

* Windows Explorer is a  Multi purpose Windows used by windows Operating System to display                everything.

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