Welcome to Coaching Genie's series-6 of Computer Knowledge. The Best free IBPS PO Clerk coaching.
51.Which of the following is true ?
a)Eight-digit binary number is called a Nibble
b)Nibble is a single digit in a binary number
c)Bit represents a grouping of digital numbers
d)Four - digit binary number is called a byte
e)Eight - digit binary number is called a byte
52.Arithmetic logic unit
1.Communicate with input devices of the above
2.Perform arithmetic operations
3.Store data
4.Perform comparison
a) 1 only
b) 1 and 2 only
c) 2 only
d) 1 and 3 only
e) 2 and 4 only
53.The code for a Web page is written using ______
a)C++ Language
b)Python Language
c)C Language
d)Hypertext Markup Language
e)Ruby Language
54.Updating a database means
a)Modifying or adding records
b)Revising a file structure
c)Reorganizing the database
d)All the above
e)None of these
55.Accumulator is a
a)Sequential circuit
b)Hardwired unit
c)Register
d)Finite state machine
e)Software Unit
56.Which of the following storage is volatile
a)ROM
b)Floppy Disk
c)RAM
d)Hard Disk
e)DVD ROM
57.The ______ key and the ______ key can be used in the combination with other keys to perform shortcuts and special tasks
a)Space bar , Enter
b)Delete , Insert
c)Tab , Num Lock
d)Control, Alt
e)Shift, Function
58.The communication mode that supports data in both directions
a)Multiplex
b)Simplex
c)Multipurpose
d)Half duplex
e)Multimode
59.A list of instructions used by a computer is called _______
a)List
b)Cursor
c)Program
d)Text
e)Input
60.The invention of the transistor, or semiconductor, was one of the most important developments leading to the personal computer revolution. What company invented the transistor in 1947?
a)HP
b)Bell Laboratories
c)Philips
d)International Business Machines
e)Dell
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