Dear Readers,

IBPS has introduced Computer Aptitude this year (clubbed with Reasoning Section) in the Mains Examination of Probationary Officer Recruitment. Aspirants preparing for SBI must be familiar with Computer Aptitude Section. You must prepare basics of Computer Knowledge for this section to score well. The only difference between Computer Aptitude and Computer Awareness/Knowledge is the practical approach of questions asked in Computer Aptitude.

**Practice with these 15 questions of Computer Aptitude for IBPS PO Mains 2017 Exam.**

**Q1. Which of the following is the correct binary form of 4A2.8D**

_{16}?
(a) 010010100010.10001101

_{2}
(b) 010110100010.11101101

_{2}
(c) 011110100010.10001101

_{2}
(d) 010010111110.10001101

_{2}
(e) None of these

**Q2. Which of the following symbol represents decisional or conditional statement in a flow chart?**

**Q3. Which of the following is not a valid binary number?**

(a) 00000

(b) 11111

(c) FFFFF

(d) 101010

(e) 010101

Q

**4. If ∆ represents ‘1’ and ○ represents ‘0’. What will be the one’s complement of - ○∆∆○○∆?**

(a) 011001

(b) 100110

(c) 101010

(d) 000000

(e) 111111

**Q5. Following diagram depicts which logic gate?**

(a) NOR gate

(b) NOT gate

(c) OR gate

(d) NAND gate

(e) None of the above

**Q6. Which of the following is a correct set of hexadecimal digits?**

(a) 102n

(b) a19fk

(c) ZOLO12

(d) FACE

(e) 0101xx

**Q7. Which of the following is a Logical Conjunction?**

(a) AND gate

(b) OR gate

(c) NOT gate

(d) both(a) and (b)

(e) All of the above

**Q8. If Ӣ represents ‘1’ and Ṉ represents ‘0’. A and B are two input ends of OR logic gate and C is the only output. What will be the output if the input is A= Ӣ and B= Ӣ?**

(a) Ṉ Ӣ

(b) Ṉ

(c) Ӣ

(d) Ӣ Ṉ

(e) Ӣ Ṉ Ӣ

**Directions (9-11) : Triangle represents ∆ (1) and circle represents ○ (0). If triangle appears in unit's place then its value is 1. If it appears in 10's place its value is doubled to 2 like that it continues. Using the given terminology answer the following questions. For example:**

∆ = 1

∆○∆ = 4, 0, 1 = 4+0+1

∆○ = 2

**Q9. How will you represent ‘87’ in this code language?**

(a) ○∆∆∆○∆∆

(b) ∆○∆○∆∆∆

(c) ∆∆○∆∆∆∆

(d) ∆○○∆○○∆

(e) ∆∆○∆∆∆○

**Q10. What will be the code for ∆∆○○○∆○?**

(a) 98

(b) 97

(c) 90

(d) 94

(e) 99

**Q11. What will be the code for one’s complement of ∆∆○∆?**

(a) 2

(b) 3

(c) 4

(d) 5

(e) 6

**Q12. Which of the following number systems is considered as a base-10 number system?**

(a) Decimal number system

(b) Binary number system

(c) Octal number system

(d) Hexadecimal number system

(e) None of these

**Q13. The hexadecimal number system represents symbols __________ and __________.**

(a) 0-9, A-E

(b) 0-9, A-F

(c) 1-10, A-E

(d) 1-10, A-F

(e) None of these

**Q14. The conversion of the binary number 10100111011**

_{2}into its decimal form is __________.
(a) 1339

_{10}
(b) 1349

_{10}
(c) 1393

_{10}
(d) 1939

_{10}
(e) None of these

**Q15. __________ are the gates that can be used to implement any type of Boolean logic.**

(a) OR gates

(b) Universal gates

(c) NAND gates

(d) Exclusive-NOR gates

(e) AND gates

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