Unit 1
Fundamentals of Information and Data Representation

1. A VDU has just sufficient video RAM to display 256 colours at a resolution of 800x600 pixels. To display more colours on the VDU:
increase resolution
decrease resolution
use a larger screen
use a smaller screen

2. A number in binary is 01000110, the decimal equivalent is:
49
70
25
256

3. A number in decimal is 36, the binary equivalent is:
00100100
00110110
00011110
00101110

4. A number in decimal is 36, the BCD equivalent is:
01000010
00110110
10111101
10011001

5. A number in BCD is 00010110, the decimal equivalent is:
46
18
22
16

6. One kilobyte is:
8192 bits
1024 bits
512 bits
256 bits

7. A number in binary is 01100010, the decimal equivalent is:
98
62
64
128

8. A number in BCD is 01100010, the decimal equivalent is:
98
62
64
128

9. In bit-mapped graphics, if one byte is used to represent each pixel, how many colours will be available?
64 colours
128 colours
256 colours
1024 colours

10. Data used for a purpose other than that for which it was originally intended:
direct data collection
implicit data collection
immediate data collection
indirect data collection

Score =