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หน่วยที่ 4 ฮาร์ดแวร์ (hardware)

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The document discusses the main hardware components of a computer system including the input unit, central processing unit, control unit, arithmetic and logical unit, and storage unit. It then lists and describes 10 common input devices: keyboards, mice, joysticks, touch screens, light pens, styluses, digitizers, scanners, microphones, digital cameras, digital video cameras, and webcams. Biometric input devices are also mentioned.

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(Hardware) CAI
4 (Hardware) • • • •
(Hardware) • (Input Unit) • (Central Processing Unit : CPU) © (Control Unit) ® (Arithmetic and Logical Unit : ALU) • (Storage Unit) © (Main Memory) © (Secondary
• • 4 (Hardware)
1. • (Input Devices) (Keyboard)
(Standard Keyboard)
(Built in Keyboard) (Ergonomic Keyboard)
(Cordless keyboard) (Portable Keyboard)
(Virtual
• 2. 1.
(Mechanical (Optical Mouse)
(Mouse) (Trackball)
(Touchpad) (Optical Mouse)
(Optical Mouse)
• 3. (Joystick) 1.
(Joystick) (Joystick)
• 4. (Touch Screen) 1.
(Touch Screen) (Touch Screen)
(Touch Screen) (ATM)
(Touch Screen)
(Touch Screen)
(Touch Screen) I Phone I Pad
• 5. (Light Pen) CAD (Computer Aided Design) 1.
(Light Pen) (Light Pen)
(Light Pen) (Light Pen)
• 6. (Stylus) 1.
(Stylus) (PDA)
(Stylus)
• 6. (Digitizer) 1.
(Digitizer) (Digitizer)
• 7. (Scanner) 1.
(Scanner) (Bar Code
(Scanner) (Bar
(Scanner) (Optical Mark Recognition)
(Scanner) (Optical Mark Recognition)
• 8. (Microphone) (Sound Card) 1.
(Microphone) (Microphone)
• 9. (Digital Camera) 1.
(Microphone) (Digital Camera)
• 10. (Digital Video Camera) 1.
(Microphone) (Digital Vidio Camera)
• 10. (Webcam) 1.
(Web Cam) (Web) Cam)
• 10. (Biometric Input Device) 1.
Biometric Input Device Biometric Input Deviec
หน่วยที่ 4 ฮาร์ดแวร์ (hardware)

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หน่วยที่ 4 ฮาร์ดแวร์ (hardware)