lesson objectives
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Lesson Objectives. To understand what input and output devices are, and how they are used The understand the difference between input and output devices. . Input Devices. An input device is used to get data in to a device. - PowerPoint PPT PresentationTRANSCRIPT
HARDWARE
• Lesson Objectives
• To understand what input and output devices are, and how they are used
• The understand the difference between input and output devices.
HARDWARE
• Input Devices
An input device is used to get data in to a device.
THINK – How many different ways can you think of to enter data into a computer?
PAIR – Talk to the person to your left. How many can you come up with together?
SHARE – Share your ideas with the class
HARDWARE
• Output Devices
An out device is used to output data that has previously been entered into a computer
THINK – How many different ways can you think of outputting data from a computer?
PAIR – Talk to the person to your left. How many can you come up with together?
SHARE – Share your ideas with the class
HARDWARE
• Task 1:
Use the worksheet to label the diagram.
Make sure that you • show whether the device is an INPUT or OUTPUT
device.• Name each device• Describe what the device is used for
HARDWARE
• Input Devices
Key boardKnown as the
“Qwerty” keyboard because of the layout of the letters on the
first row.
MouseInvented in 1963, and
is now the most common form on
input. Used to highlight, select and edit using sensors on
the bottom
CameraWeb cams are now
on most PCs and Laptops. Used for
social networking or Skype but also may be used for iris or facial recognition
MicrophoneUsed to input sound
and control the computer using voice recognition software.
ScannerUsed to digitise
images. They make a digital copy of data.
HARDWARE
• Output Devices
SpeakersSound is output
through use of speakers or headphones. In
industry speakers are used as a warning, for example in hospitals
PrinterThese are used to produce a
hard copy of information. There are different types
including fast laser printers and cheaper ink-jet printers which are more common in
the home.
MonitorMost systems will have
some kind of visual output that requires a monitor. LCD
and LED are the most common flat screen
monitors
HARDWARE
• Task 2:
There are many other input and output devices that you need to know about
Use the table on the reverse of your sheet to research what each device does, who might use it, and what it might be used for.
Use the BBC Bitesize>GCSE>ICT>Hardware revision section to help you.
HARDWARE
• Other Devices
Graphics TabletA graphics tablet consists of a flat pad (the tablet) on which the user draws with a special pen. As the user draws on the pad the
image is created on the screen. Using a graphics tablet a designer can produce very accurate on-screen drawings as if they were
drawing on paper.
PlottersA plotter is a special kind of printer often used for producing
complex technical line drawings which need to be really accurate. The plotter is like a robotic arm and a series of pens which draws
the image on a large piece of apper
RFID (Radio-Frequency Identification)These are often used in shops to track items past sensors,
e.g. baggage handling in airports, toll booths, car park access or in pet identification chips
INPUT
OUTPUT
INPUT
HARDWARE
• Other Devices
SensorsSensors are used on a wide range of applications including
temperature, water level, light, pressure and motion sensors. Sensors are often found in computer control and more modern
aeroplanes use sensors to provide automatic feedback.
Barcode ReaderBar code readers are used to scan barcodes from labels to identify
an item and retrieve the data from a database
MicrophoneMicrophone are used to input sound and can be used to control the
computer using voice recognition software
INPUT
INPUT
INPUT
HARDWARE
• Other Devices
Touch ScreenAlternative to a mouse or keyboard. Senses the users touch. Often
used in phones, tablets, kiosks etc.
JoystickJoysticks used to be popular with gamers but have slowly been
replaced by other types of game controller. In construction, joysticks are used to control machinery such as cranes.
ActuatorsA computer system being used to monitor and control a mechanical
system will need some way of outputting a physical change. In aeroplanes, actuators are mechanical devices which adjust various
parts of the system such as flaps or engines based on the data input.
INPUT
INPUT
OUTPUT
HARDWARE
• Task 3
Answer the exam style questions about input and output devices