3. Hardware - Input & Output Devices: Computer Science CIE IGCSE

What are advantages of 3D printers?

• You can easily make bespoke items/ prototypes

• Almost any shape can be printed

• Costs to designer reduced

• Cheap

• Designs easily shared

What are disadvantages of 3D printing?

• Expensive

• Printed items are not as durable as manufactures items

• Costs to designer are large

• Dangerous items could be printed

• Possible copywright issues

Any kind of computer/device that produces movement from a computer command

• Robot

• Arm

• Actuator

• Microprocessor

What are 2 types of actuator?

• Mechanical

• Electromechanical

• Electric

• Physical

Give examples of actuators:

• Robotic arm

• Robot

• Solenoid

• Relay

• Door

Give examples of actuators:

• Motor

• Arm

• Fan

• Water pump

• Gas

What are advantages of microphones?

• A variety of information can be provided to the user

• Can help warn lots of people of an emergency

• Can aid disabled users when operating a device

• Built-in speakers produce high-quality sound

• Easy to set up

What are disadvantages of microphones?

• You need a sound card with a DAC in order to convert sound

• Sound may disturb others

• Can aid disabled users when operating a device

• Built-in speakers produce low-quality sound

• Hard to set up

What are the types of digital projector?

• LCD

• DLP

• LDP

• CDP

Projects a digital video output onto a flat area

• projector

• scanner

• digital camera

• microphone