Question

Name: Robert Skinner Miles College CIS 330 Computer Architecture Test 1 Please, clearly show your work on the attached sheets of paper. 1. Convert the Decimal number 26 to: A. Binary number B. Hexadecimal number 2. Why is Binary data representation the preferred method of computer hardware implementation? 3. Convert 01001110 in Binary to: A. To Decimal B. To Hexadecimal 4. Convert the following Binary numbers to twos Complement A. 00011010 B 00011100 5. List at least 5 types resources that computers on a Local Area Network (LAN) or Wide Area Network (WAN) can share.

Answer 1

1. A. Convert 26 Quotient Remainder 0 (LSB) Division 26 div 2 13 div 2 6 div 2 3 div 2 1 div 2 O (Integer part is O so we stop) 1(MSB) Therefore (26)10= (11010) B. Quotient Division 26 div 16 1 div 16 Remainder 10 = A (LSB) | 1 (MSB) O(Integer part is O so we stop) Therefore (26)10= (1A) 16 2. Binary data representation the preferred method of computer hardware implementation, because computer can be processed with two electrical signal pulses easily and representing cost-efficient, reliable and accurate system. 3. Convert 01001110 A. (01001110) = 0x2? + 1x2 + 0x2 + 0x24 + 1x2 + 1x22 + 1x2 + 0x20 = 64 + 8 + 4 + 2 = 78 Therefore (01001110)2 = (78)10 B. (01001110)2 = (0100 1110)2 E) 16 Therefore (01001110)2 = (4E) 16

4. Convert 00011010 A. Convert 00011010 l's complement of 00011010 is 11100101 ſeach 1 is replaced by 0 and each o by 1] Now add 1 to 11100101 11100101 1 11100110 Therefore 2's complement of 00011010 is 11100110 [each 1 is replaced by 0 and each O by 1] B. Convert 00011100 l's complement of 00011100 is 11100011 Now add 1 to 11100011 11100011 11100100 Therefore 2's complement of 00011100 is 11100100 5. Resources that computer on a LAN or WAN can shares: i. Data Files ii. Printers iii. Software iv. CD/DVD Drive v. Hard disk