The Answer of Chapter 5 (PTI)

a. True/false
• T
• T
• F
• T
• T
• F
• F
• F
• F
• T
• F
• T

b. Multipe Choice
• C
• A
• B
• C
• D
• C
• C
• C

c. Mtching
• B
• G
• D
• J
• E
• A
• H
• F
• I
• C

d. Short Answer

1.    1. What are three different types of mouse devices?

= laser mouse, air mouse, and wireless mouse.

What makes them different from each other?

=               -    Laser mouse

         =uses a laser to detect movement of the mouse. It also includes buttons you push with your thumb that enable forward and backward navigation through Web pages.

-       Air mouse

= is a motion-sensing mouse that, in addition to the typical buttons, allows you to control objects, media players, and slide shows by moving the mouse in predetermined directions through the air.

-       Wireless mouse

=is a battery-powered device that transmits data using wireless technology, such as radio waves (Bluetooth) or infrared light waves (IrDA).

           

2.  2.   Name at least five mouse operations!

= Point, click, right-click, double-click, drag.

Describe and give examples of each of the mouse operations that you chose!

=                -    Point

                        Move the mouse until the pointer on the desktop is positioned on the item of choice.

             Example: Position the pointer on the screen.

-       Click

Press and release the primary mouse button, which usually is the left mouse button.

Example: Select or deselect items on the screen or start a program or program feature.

-       Right-Click

Press and release the secondary mouse button, which usually is the right mouse button.

Example: Display a shortcut menu

-       Double-Click

Quickly press and release the left mouse button twice without moving the mouse.

Example: Start a program or program feature.

-       Drag

Point to an item, hold down the left mouse button, move the item to the desired location on the screen, and then release the left mouse button.

Example: Move an object from one location to another or draw pictures.

3.     3.What is OCR (optical character recognition)?

= 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.

What is OMR (optical mark recognition)?

= is a technology that reads hand-drawn marks such as small circles or rectangles.

4.     4. What is the most widely used biometric device today?

= fingerprint reader.

Describe how the device works!

=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.  5.   What are the Americans with Disabilities Act (ADA)?

=ADA is a structured, statically typed, imperative, wide-spectrum, and object-oriented high-level computer programming language, extended from Pascal and other languages. It has strong built-in language support for explicit concurrency, offering tasks, synchronous message passing, protected objects, and non-determinism (source:wikipedia), and it also requires any company with 15 or more employees to make reasonable attempts to accommodate the needs of physically challenged workers.

How might gesture recognition and computerized implant devices help physically challenged users in the future?

= 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.

The Answer of Chapter 4

a. True/flase
• T
• F
• T
• T
• F
• T
• T
• T
• F
• T
• F
• F

B. Multipe choice
• B
• A
• B
• B
• C
• B
• A
• D

c. Matching
• H
• A
• F
• B
• D
• E
• G
• C
• I
• J

d. Short Answer

1.    1. What are two types of designs of Tablet PCs?

=  two types of design of Tablet PCs are slate Tablet PC and convertible Tablet PC.

What are the differences in the designs of the two types of Tablet PCs?

=                -    Slate Tablet PC

      =It  doesn't include a keyboard and the system unit is behind the display. 

-       Convertible Tablet PC

= In Convertible Tablet PC the system unit is positioned below a keyboard and it is providing functionality similar to a traditional notebook computer or netbook.

2.    2. What is the motherboard?

= motherboard is the main circuit board of the system unit.

What is a computer chip?

=computer chip is a small piece of semiconducting material, it is usually a silicon, on which integrated circuits are etched.

3.    3. What are the four basic operations in a machine cycle?

=  the four basic operations in a machine cycle are fetching, decoding, executing, and storing.

What are some functions of registers?

= storing the location from where an instruction was fetched, storing an instruction while the control unit decodes it, storing data while the ALU computes it, and storing the results of a calculation.

4.     4.What types of devices might be Bluetooth enabled?

=computers, peripherals, smart phones, PDAs, cars, and other consumer electronics

Describe three ways in which a computer can become Bluetooth enabled!

= -     It contains a small chip that allows them to communicate with other Bluetooth-enabled computers and devices.

-       Has to be within about 33 feet of each other.

-       Uses radio waves to transmit data between two devices.

5.   5.  What is compressed air used for with regards to caring for your computer?

= removes dust and lint from difficult-to-reach areas and removes sticky liquid spilled on keyboards

How should you prepare for cleaning your computer?

= turn it off, and if necessary, unplug it from the electrical outlet, remove its battery, and disconnect all cables from the ports.

The Answer of chapter 3 (PTI)

True/False

1. F
2. F
3. F
4. T
5. T
6. T
7. T
8. F
9. T
10. T
11. T
12. F

Multiple Choice

1. A
2. A
3. B
4. C
5. C
6. B
7. C
8. B

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 typically offer features that provide an environment conducive to successful use of application software.
Examples:
• it protect a computer against malicious software and unauthorize intrusions, manage files and disks, compress files, play media files, and burn optical discs.
• protects a computer against malicious software,or malware
-malware is a program that acts without a user’s knowledge and deliberately alters the computer’s operations.
2. The features of presentation software are:
• checking spelling
• formatting
• providing research capabilities
• recognizing handwritten text and drawings
• creating Web pages from existing slide shows
types of media :
• a clip gallery
• photos
• video clips
• audio clips
3. Travel and mapping are used when users enter a starting and destination point.
Examples:
• Fugawi Global Navigator
• Microsoft Streets and Trips
• Street Atlas USA
4. Computer –based training is a type of education in which students learn by using and completing exercises with instructional software.
Examples:
• Beginning athletes, use CBT programs to learn the intricacies of baseball, football, soccer, tennis, and golf.
• The military and airlines, use CBT simulations to train pilots to fly in various conditions and environments.
5. – Many Web sites offer WBT to the general public, like training to covers a wide range of topics, from how to change a flat tire to creating documents in Word and many of these Web sites are free, but if we want to take complete web-based course it require registration and payment.
- To enhance communications e-learning systems also may include video conferencing, e-mail, blogs, wikis, newsgroups, chat rooms, and groupware.