Wednesday, October 31, 2012

Exercise Chapter 5 - Discovering Computer 2011 - Living in Digital World


Martin - 1601213690

01 PBT

True / False

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


Multiple Choice

1. C ( ergonomic keyboard )
2. A ( predictive text input )
3. B ( multi-touch )
4. C ( graphics tables )
5. D ( Voice recognition )
6. C ( Music production software )
7. C ( radio signals )
8. C ( gesture recognition )


Matching

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


Short Answer

1. * Optical mouse, laser mouse, air mouse - Optical mouse uses devices that emit the sense light to detect the mouse's movement. Laser mouse uses laser to detect the mouse's movement. Air mouse is a motion-sensing mouse that allows you to control objects, media players, and slide shows by moving the mouse in predetermined direction in the air.

2. * Point, click, right-click, double-click, triple-click - Point is the action of moving the mouse until the pointer on the desktop is positioned on the item of choice. Click is pressing and release the primary mouse button which usually is the left mouse button. Right click is pressing and release the secondary mouse button which usually is the right mouse button. Double-click is the action of quickly pressing and release the left mouse button twice without moving the mouse. Triple-click is the action of quickly pressing and release the left mouse button three times without moving the mouse.

3. * OCR is a technology that involves reading typewritten, computer-printed, or hand-printed characters from ordinary documents and translating the images into a form that the computer can process.
    * OMR is a technology that reads hand-drawn marks such as small circles or rectangles.

4. * The most widely used biometric device nowadays is a fingerprint reader.
    * A fingerprint reader or scanner captures curves and indentations of fingerprint. The reader can be set up to perform different functions for different fingers, for example, one finger starts a program and another finger shuts down the computer.

5. * The Americans with Disabilities Act (ADA) requires any company with 15 or more employees to make reasonable attempts to accommodate the need of physically challenged workers.
    * Computers with gesture recognition capability have the potential to recognize sign language, read lips, track facial movements, or follow eye gazes. For paralyzed or speech impaired individuals, a doctor will implant a computerized device into the brain.

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.

Saturday, October 13, 2012

Exercise Chapter 3 - Discovering Computer 2011 - Living in a Digital World

Martin - 1601213690

01 PBT

True / False

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


Multiple Choice

1. A ( Packaged Software )
2. A ( A software suite )
3. B ( Project management software )
4. C ( Document management )
5. C ( Personal DTP software )
6. B ( photo management software )
7. C ( newsgroup/message board )
8. B ( Online help )


Matching

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


Short Answer

1. * Utility programs protect a computer against malicious software and unauthorized instrusions, manage files and disks, compress files, play media files, and burn optical discs.
    * Malware is a program that acts without a user's knowledge and deliberately alters the computer's operations.

2. * Presentation software is a software that provide a variety of predefined presentation formats, a variety of layouts for each individual slide, provide slide-timing where the slide change itself to the next slide automatically after a set of time, gives a variety of feature including an outline of text from each slide, audience handouts that show completed slides, and speaker notes for each slide, also enables users to work with multiple monitors.
    * Images, video and audio are some types of media might a person use to enhance a presentation.

3. * Travel and Mapping software enables users to view maps, determine route directions, and locate points of interest. This software also provides driving directions when a user enters a starting and destination point. Most programs also allow us to download construction reports and calculate mileage, time, and expenses.
    * Examples of reference software : encyclopedia, dictionary, health/medical guides.

4. * Computer-based training ( CBT ) is a type of education which students learn by using and completing exercises with instructional software.
    * Few examples of CBT usage : pilots use CBT aircraft simulations to train how to fly the ships in various conditions and environments.

5. * There are many Web sites utilize Web-based training in business, industry, schools, and many more.
    * Some ways that e-learning enhances communications include video conference, email, blogs, wikis, instant messenger and many more.