Answer all the multiple choice questions on pages 134-135. Copy and paste just the correct letter and the answer, do NOT write out the question. For example the answer to question 1 would look like this 

1. C. QWERTY keyboard was chosen to reduce the typing speed
2. D. Portable PCs typically do NOT use a mouse.
3. C. A touchscreen is both an input and output device.
4. E. OCR is used to read text from a smartboard, tablet PC, PDA, scanned letter
5. D. Notebooks, desktops and projectors all use LCD technology.
6. E. Screens are measured diagnonally from top left to bottom right corner.
7. C. 24 is the bit depth used by most graphics professionals (true color - 16 million color combinations)
8. A. A multifunction printer or all-in-one will include a scanner.
9. D. Plotters are used for architectural drawings which may be several feet wide.
10. B. Magnetic tapes are a sequential-access medium and thus are slow when retrieving data.
11. C. Floppy disks are obsolete because they don't have enough storage capacity for today's large files.
12. B. Hard disk drives are more likely to fail compared to other computer components.
13. C. Digital cameras store data in flash memory.
14. C. The parallel port is being phased out because it is a legacy technology.
15. C. A stereo system where the user can replace the speakers, disk player and other components is most like the open architecture of modern PCs.

2. List 5 input devices and 3 output devices

3. Name and describe three special-purpose input devices commonly used in public places such as stores, banks and libraries.

4. Describe three alternatives to using a mouse.

8. Some peripherals can be described as both input and output - explain

9. What is the difference between sequential-access and random-access storage devices? What are the uses of each.