Chapter 4
͒͒͒ True or False :
1. T
2. F
3. T
4. T
5. F
6. T
7. T
8. T
9. F
10. F
11. F
12. F
͒ Multiple
Choice :
1. B
2. A
3. B
4. B
5. C
6. B
7. A
8. D
͒ Matching :
1. H
2. A
3. F
4. B
5. D
6. E
7. G
8. C
9. I
10. J
͒ Short Answer :
1.
2 types of
Tablet PC : With The Slate Tablet
PC and A Convertible Tablet PC.
The
difference is 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. Besides, the slate Tablet PC doesn’t include a
keyboard, but there is a keyboard for the convertible Tablet PC. Also, the
system unit of the slate Tablet PC is behind the display, but the system unit
in the convertible Tablet PC is positioned below a keyboard.
2.
Motherboard : The electronic components and
circuitry of the system unit, such as the processor and memory, usually
are part of or are connected to a circuit board.
Computer Chip : a small piece of semiconducting material, usually silicon, on which integrated
circuits are etched.
3. 4 basic operations :
Fetching, decoding, executing, storing.
The functions of registers are include 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.
Computers, peripherals, smart phones, PDAs, cars, and other consumer electronics.
If we have a computer that is not Bluetooth enabled, we can
purchase a Bluetooth wireless port adapter that will
convert an existing USB port into a
Bluetooth port.
5.
Compressed air : to
blow away dust from any openings on the computer or device case, such as
drives, slots, ports, and fan vents. And lint from
difficult-to-reach areas, removes sticky liquid spilled on
keyboards.
How to prepare for cleaning our computer : before
cleaning the exterior of a computer or mobile
device, turn it off, and if necessary, unplug it
from the electrical outlet, remove its battery,
and disconnect all cables from the ports.
Chapter 5 :
͒ True or False :
1. T
2. T
3. F
4. T
5. T
6. F
7. F
8. F
9. F
10. T
11. T
12. T
͒ Multiple Choice :
1. C
2. A
3. B
4. C
5. D
6. C
7. C
8. C
͒ Matching :
1. B
2. G
3. D
4. J
5. E
6. A
7. H
8. F
9. I
10. C
͒ Short Answer :
1. 3 types of mouse devices : optical mouse, laser mouse,
air mouse.
Optical mouse : devices that emit
and sense light to detect mouse’s movement.
Laser mouse :
enabling
users to place the mouse on rougher surfaces
such as carpeting and park benches.
Air mouse :
is a motion-sensing mouse allows you to control
objects, media players, and slide
shows by moving the mouse in predetermined
directions through the air.
2. Point :
move the mouse until the pointer on the desktop is positioned on the item of
choice. Example : position the pointer on the screen.
Rotate wheel : roll the wheel forward
and backward. Example : roll vertically (up and down).
Press wheel : press the wheel
button while moving the mouse. Example : scroll continuously.
Tilt wheel :
press the wheel toward the right or left. Example : scroll horizontally.
Triple-click :
quickly press and release the left mouse button three times without moving the
mouse. Example : select a paragraph.
3. OCR : can
read and convert text documents into electronic files.
OMR : a technology that reads
hand-drawn mark such as small circles or rectangles.
4. The most widely biometric device today is a
fingerprint reader.
A fingerprint reader, or
scanner, captures curves and indentations of a
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. ADA is a wide-ranging civil rights
law that prohibits, under certain circumstances, discrimination
based on disability.
With gesture recognition, the computer will
detect human motions. 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.
