Exercise Chapter 4 - Discovering Computer 2011 - Living in Digital World

Martin - 1601213690

01 PBT

True / False

1.   True
2.   False
3.   True
4.   False
5.   False
6.   True
7.   True
8.   False
9.   False
10. True
11. False
12. False


Multiple Choice

1. B ( central processing unit (CPU) )
2. A ( control unit )
3. B ( registers )
4. B ( massively parallel processing )
5. C ( firmware )
6. B ( port replicator )
7. A ( docking station )
8. D ( front side bus )


Matching

1.   h
2.   a
3.   f
4.   b
5.   d
6.   e
7.   g
8.   c
9.   i
10. j


Short Answer

1. * Slate and Convertible - In slate design, the system unit is behind the display. In convertible design, the display attaches to the system unit with a swivel-type hinge, which enables a user to rotate the display and fold it down over the keyboard to look like a slate Tablet PC.

2. * Motherboard is the main circuit board of whole system unit.
    * Computer chip is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched.

3. * Four basic operations in machine cycle : comparing, decoding, executing, pipelining.
    * Register function include storing the location from where an instruction was fetched, storing the results of a calculation.

4. * Many computers, perpherals, smart phones, PDAs, cars, and other consumer electronics are Bluetooth-enabled.
    * The three ways to use Bluetooth is using Bluetooth-enabled device or purchase Bluetooth wireless port adapter or Bluetooth PC Cards and Express Card modules for traditional notebook computers and Tablet PCs or Bluetooth cards for smart phones and PDAs.

5. * Compressed air is used to blow away dirt from any openings on the case, such as drivers, slots, ports, and fan vents.
    * Before cleaning the computer, turn it off, and if necessary, unplug it from the electrical outlet, remove the battery, and disconnect all cables from the ports.