1. All data manipulated by computers must be in format.

2. Computers cannot process images because they have no way of representing pictures. 
True 
False

3. The decimal system has a base of 10, while the hexadecimal system has a base of: 
2 
8 
16 
4

4. One of the following numbers is illegal in base 4: 
1234 
3320 
10000 
111111

5. The decimal equivalent of the number (200)_{5} is : 
125 
1000 
600 
None of the above

6. The decimal equivalent of the number (200)_{3} is: 
600 
180 
9 
18

7. The binary equivalent of the number (700)_{16} is: 
000000000111 
11100000000 
0111 
111000000

8. The octal equivalent of the number (700)_{16} is: 
1000 
700 
3400 
7000

9. The octal equivalent of the number (1100010)_{2} is: 
310 
142 
304 
320

10. The hexadecimal equivalent of the number (1100010)_{2} is: 
610 
A4 
62 
None of the above

11. The hexadecimal equivalent of the number (10)_{10} is: 
A 
16 
10 
None of the above

12. The binary equivalent of the number (20)_{10} is: 
11001 
10111 
10101 
10100

13. The signedmagnitude binary representation of the number +27 is: 
00011011 
11111011 
11011000 
None of the above

14. The signedmagnitude binary representation of the number 227 is: 
11111111 
10000000 
01111111 
None of the above

15. Using 8bits signedmagnitude representation, the range of numbers that can be represented is: 
128 to +128 
255 to +255 
127 to +127 
256 to +256

16. Using the same number of bits, both the signedmagnitude and 1's complement representations will have the same range. 
True 
False

17. All signednumber representations suffer from the zero double representation problem. 
True 
False

18. The 1's complement representation of signednumbers is the most widely used in computers. 
True 
False

19. The 2's complement representation of –34 is: 
11100010 
11011110 
01100010 
00100010

20. Overflow can occur when adding two numbers with the same sign. 
True 
False

21. A bit is added to data for error checking/detection.

22. The code is the most popular binary codes for character representation in computers.

23. The is a 16bit code that can represent all the characters in all the languages of the world.

24. The binary data 0000000 with even parity becomes: 
00000000 
10000000 
00000001 
None of the above

25. The binary data 0000000 with odd parity becomes: 
00000000 
10000000 
00000001 
None of the above

