Title DE Question Bank (2).doc.docx ✅

PARUL UNIVERSITY - FACULTY OF ENGINEERING & TECHNOLOGY Department of Electronics & Communication Engineering ASSIGNMENT-1 Subject Name: DIGITAL ELECTRONICS Subject Code: 203105201 --------------------------------------------------------- 1. Convert Decimal Number 250.5, 87.876 to base 3, base 4, base 7 & base 16. 2. Convert decimal number 225.225, 865.987 to binary, octal and hexadecimal. 3. Represent decimal number 7654 in BCD , Excess-3 , and Gray code 4. Convert following Numbers as directed: (a) (52)10 = ( )2 (b) (101001011)2 = ( )10 (c) (11101110) 2 = ( )8 (d) (68)10 = ( )16 5. Define: Digital System. 6. Convert following Hexadecimal Number to Decimal number : B28, FFF, F28 7. Convert following Octal Number to Hexadecimal and Binary number : 414, 574, 725.25 8. Convert following numbers to decimal number: (i) (10001.101)2 (ii) (101011.11101)2 (iii) (0.365)8 (iv) A3E5 (v) CDA4 (vi) (11101.001)2 (vii) B2D4 9. Perform subtractions with the following binary numbers using 2′ s complement (i) 10010 - 10011 (ii) 100 -110000 (iii) 11010 -10000 10.Perform subtractions with the following binary numbers using 1′ s complement (i) 100110 - 10011 (ii) 1000 -110000 (iii) 110101 -10000 11.Give full form for following abbreviations and explain: (i) ASCII (ii) EBCDIC 12.Explain weighted binary codes with examples. 13.Find 1’s and 2’s complement of following binary nos. (10001.101)2 (ii) (101011.11101)2 14.Find 9’s and 10’s complement of following binary nos. 3405.65,87.76