Input and Output Devices Flashcards
Memorize uses, advantages and disadvantages of different input and output devices
What are the three stages of data input?
- Input devices
- CPU - Central processing unit
- Output devices
+ If data is to be stored the process includes the storage, whether HDD or SDD.
What is the use of the keyboard?
What is a CLI?
- Inputting data into applications
- ## Typing commands into a CLI interface.A CLI Is a command-line interface
Advantages and Disadvantages of a Keyboard
Advantages: Easy and familiar to use
Fast entry of text into a
document
————————
Disadvantages: Slower method compared
to direct data entry.
Use of Numeric keypad
What does ATM stand for?
What does POS Stand for?
What is the chip and pin?
Inputting numeric data into:
-POS terminals
-ATM
-Chip and pin
-Mobile phones
ATM: automated teller machine
POS: point of sale
Chip and pin: microchip generally used in payment
Advantages and disadvantages of Numeric keypad
Advantages: Straightforward at entering numeric data
Disadvantages: Keys can be too small
Use of the mouse
Control and position the mouse pointer on the screen to:
-select windows
-click icons
-menu options
Advantages and disadvantages of the mouse.
Advantages: easy to navigate through the
menu options
quicker to select an option
when compared to the
keyboard.
—————————
Disadvantages: Easily damaged
Flat surface required
Use of the touchpad
Used as a pointing device in laptops
Advantages and disadvantages of the touchpad
Advantages: part of the keyboard so no
need for a separate device
—————————
Disadvantages: More difficult to use compared to a regular mouse
Use of the tracker ball
What is RSI?
Used by users who tend to
have limited motility in
their wrist
——————-
(RSI) Repetitive strain injury
Advantages and Disadvantages of the Tracker Ball
Advantages: Easier to use compared to
mouse
More accurate positing of the
pointer
————————–
Disadvantages: Tend to be expensive
Use of the remote control
Used to control:
* TV Channels and Menu
options
* Multimedia Systems
Advantages and disadvantages of remote control
Advantages: Can be used from a distance.
Disadvantages: Signal could be blocked by obstacles or walls.
Use of the joystick
Used in computer games
and simulators.
Advantages and Disadvantages of the joystick
Advantages: easier to use compared to a keyboard.
Disadvantages: More difficult to use
compared to a normal
mouse.
Use of the driving wheel
Used by gamers in computer games (Racing/Driving).
Used in simulators.
Advantages and disadvantages of the driving wheel
Advantage: Driving experience is
more accurate than using
keyboards.
————————
Disadvantage: More expensive
Use of camera
Can record video footage
Advantages and disadvantages of the camera
Advantage: Can record in HD footage can be
edited on a computer.
————————-
Disadvantage: HD movies take up a lot of
storage.
The cost of a camera is high
Use of microphone
Used to input sound into a
computer.
Used in voice recognition
applications.
Advantages and disadvantages of the microphone
Advantages: Recorded audio can be typed
directly into Word
Processor applications.
——————————-
Disadvantages: Voice recognition is not as accurate as typing text into a computer.
Use of touchscreen
Used on:
* Mobile/Tablets
* Point of Sale (POS)
* Interactive White Boards
Advantages and disadvantages of the touchscreen
Advantage: Very easy to use
and select
options.
——————————–
Disadvantage
* Options
could be
selected
accidentally
* Screen
can get
dirty.
Use of scanners
Used to scan in documents
or photographs.
Advantages and disadvantages of scanners
Advantages: Copies can be created.
Disadvantages: Quality is dependent on
resolution settings.
Use of digital cameras
Used to take photographs
and small video clips.
Data can be transferred to
computers.
Advantages and disadvantages of digital cameras
Advantages Higher-resolution images can be stored on memory cards.
Disadvantages: Transferring, storing and editing images can be complicated.
