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AIO_2_PPT_788ab9299352dfaac4d9aef5d7ff4aaf

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GO! All in One Computer Concepts
and Applications
Fourth Edition
Chapter 2
Hardware
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

Learning Objectives
• Explain the Function of the Central Processing Unit
• Identify the Parts of a System Unit and Motherboard
• Describe Input Devices and Their Uses
• Describe Output Devices and Their Uses
• Compare Printer Types
• Discuss Communication Devices
• Compare Storage Devices
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

3.

Explain the Function of the Central
Processing Unit (1 of 6)
• Hardware—physical components
• Processing—computer’s responsibility
• Input, output, storage—handled by peripheral
devices
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4.

Explain the Function of the Central
Processing Unit (2 of 6)
Control unit + Arithmetic logic unit =
Central processing unit
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5.

Explain the Function of the Central
Processing Unit (3 of 6)
Figure 2.2 The four steps of the instruction cycle.
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6.

Explain the Function of the Central
Processing Unit (4 of 6)
• Clock speed—gigahertz, billions per second
• Multi-core processor—two or more processors on a
single chip
• Graphics processing unit (GPU)—processor on
video card
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7.

Explain the Function of the Central
Processing Unit (5 of 6)
Figure 2.3 Multiple video cards connected together to mine bitcoin.
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8.

Explain the Function of the Central
Processing Unit (6 of 6)
Figure 2.4 Examples of cooling fans and heatsinks.
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9.

Identify the Parts of a System Unit and
Motherboard (1 of 6)
Figure 2.5 The system unit is the case that protects and encloses the computer components.
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10.

Identify the Parts of a System Unit and
Motherboard (2 of 6)
Figure 2.6 A motherboard has expansion slots, drive controllers, and memory slots.
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

11.

Identify the Parts of a System Unit and
Motherboard (3 of 6)
Figure 2.8 A wireless adapter.
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12.

Identify the Parts of a System Unit and
Motherboard (4 of 6)
Figure 2.9 Some common motherboard ports.
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13.

Identify the Parts of a System Unit and
Motherboard (5 of 6)
• BIOS
–Read-only memory
–Nonvolatile
• CMOS
–Volatile memory
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15.

Describe Input Devices and Their Uses
(1 of 5)
Keyboard
–QWERTY
–Dvorak Simplified Keyboard
–Modifier keys—Ctrl, Shift, Alt
–Toggle keys—CapsLock, NumLock
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16.

Describe Input Devices and Their Uses
(2 of 5)
Pointing devices
–Mouse
▪Optical mouse—LED
–Touchpad
–Touchscreen
▪Stylus
▪Resistive screen
▪Capacitive screen
▪Interactive whiteboard
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

17.

Describe Input Devices and Their Uses
(3 of 5)
Digital cameras
–Point-and-shoot
–LCD—liquid crystal display
–Smartphone—Dynamic range, HDR
–DSLRs—digital single lens reflex cameras
–Webcams
–Digital video cameras
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18.

Describe Input Devices and Their Uses
(4 of 5)
Scanners
–Optical scanner
–QR code—Quick Response code
–RFID—radio frequency identification
▪RFID scanner
▪RFID tag
–Magnetic strip reader
–Biometric scanners
–NFC—near field communication
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19.

Describe Input Devices and Their Uses
(5 of 5)
• Microphones
• Game controllers and joysticks
• Adaptive input devices
• Voice-recognition software
• Wearable tech
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21.

Describe Output Devices and Their
Uses (2 of 5)
• Projectors
–DLP—digital light-processing projector
–LCD projector
• Adapters
–Display adapter or video card
–VRAM
–DVI—Digital visual interface port
–HDMI—high-definition multimedia interface port
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

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23.

24.

Describe Output Devices and Their
Uses (5 of 5)
Adaptive Output Devices:
–Magnified screens
–Speech synthesis screen reading software
–Audio alerts
–Closed captions
–Visual notifications
–Braille embosser
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26.

Discuss Communication Devices (1 of 2)
• Network adapter
• Ethernet cards
• Wireless network adapters
• Modem
• Cable modem
• Analog input and output devices
• Digital devices
• Fax device
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27.

28.

Compare Storage Devices (1 of 3)
Optical discs
–Forms:
Read-only (ROM)
Recordable (+R/−R)
Rewritable (+RW/−RW)
–CD—compact disc
–DVD—digital video disc, digital versatile disc
–Blu-ray disc
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29.

Compare Storage Devices (2 of 3)
• Solid-state storage
• Flash memory
• Flash drives—connect via USB port
• Memory cards—use card reader
–SD, CF, MS, xD
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30.

31.

Summary
• The CPU is the brain of the computer
• The motherboard is a circuit board over which data
travels and devices are connected to the computer
• Devices attached to a computer can be divided into
their functional areas: input, output, and storage
Copyright © 2020, 2017, 2014 Pearson All Rights Reserved

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