Module 1.7: extended hardware concepts Flashcards
What is the function of a _______ on the motherboard?
memory chip
A memory chip stores instructions needed to start the computer and load the operating system.
Name three examples of pointing devices.
- Mouse
- Touchpad
- Pointing stick
Pointing devices are used to move the pointer or cursor on the screen.
What type of device is a pen or stylus classified as?
Input device
Used with digitizing tablets, they allow for more natural and accurate drawing compared to a mouse.
How does a trackball function?
By moving the ball with fingers
Often used by people with disabilities for easier navigation.
What is a multi-touch screen capable of?
Gestures such as pinching
Multi-touch screens can perform actions like zooming out.
What is the purpose of an accelerometer in a device?
Detects movement
It is used for screen orientation in games and auto-rotation of the screen.
What do temperature sensors prevent in electronic devices?
Overheating
They will turn off the device automatically if it gets too hot.
What function do light sensors serve in devices?
Auto-adjust screen brightness
They can also switch the screen off when the phone is held to the ear.
What does an electronic compass indicate?
Direction of the device
It shows the direction in which a device is pointing.
Name two gaming devices used for input.
- Joystick
- Game controller
These devices enhance the gaming experience by providing different ways to interact with games.
What is the primary function of digital cameras?
Capture images and videos.
What is the resolution of digital cameras measured in?
Megapixels (MP)
Higher megapixels in digital cameras result in what?
Better quality images but larger file sizes.
What type of scanner scans one page/image at a time?
Flatbed scanner.
What is a sheet-fed scanner capable of doing?
Automatically feeds a stack of papers one sheet at a time.
Where are barcode readers typically found?
Shops and libraries.
What is a key benefit of using a barcode system?
Speed and accuracy.
What does biometric security measure?
Biological traits unique to each person.
What is Optical Character Recognition (OCR)?
Converts text in an image into editable text.
Fill in the blank: RFID stands for _______.
[Radio Frequency Identification]
What types of input do video and audio devices provide?
Video input and audio input.
What is one use of audio output devices?
Providing feedback like alert sounds and alarms.
What is the purpose of data projectors?
Sharing a display on a large screen or wall.
What functions do multi-function printers typically perform?
Scan, print, fax, photocopy.
What type of media includes CD, DVD, and Blu-ray?
Optical media.
What is the purpose of memory cards?
Storage for cameras or portable devices.
What is the central component that connects all parts of a computer?
Motherboard.
What does the Central Processing Unit (CPU) do?
Processes data and carries out instructions.
What is RAM and what is its role?
Random Access Memory; holds data and instructions currently in use.
What is the function of ROM?
Read Only Memory; controls hardware and boots the computer.
True or False: Optical media is becoming more obsolete.
True.
