571. Files created with Lotus 1-2-3 have an extension?
572. How many sheets are there in Excel Workbook by default?
573. Who is the founder of IBM Company?
A. Nolan Bushnell
B. Steve Jobs
C. Thomas J. Watson
D. Bill Gates
574. Shortcut key to create a New Folder on Windows PC is ___________?
575. The ribbon is used in_________?
A. Laser Printer
C. Ink-jet printer
D. Dot Matrix printer
576. The word Computer used for the first time in____________?
577. Compiler can check___________?
A. Syntax Error
B. Logical Error
C. Both Logical and Syntax Error
D. None of these
578. Computers that are used in large organizations such as insurance companies and banks, where many people frequently need to use same data, are____?
A. mainframe computers
B. super computers
C. hybrid computers
D. desktop computers
579. The first completely 64-bit compatible version of Android was____?
A. Android 4.0 Ice Cream Sandwich
B. Android 5.0 Lollipop
C. Android 3.0 Honeycomb
D. Android 2.3 Gingerbread
580. In 1940, first electronic computer was invented by_______?
A. Clifford Bery
B. George Boole
C. Atanasoff and Berry
D. John V.Atanasoff
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