What are headsets? Multifunctional devices? VoIP? Telephony?

Headsets combine the functionality of microphones and headphones. The microphone accepts audible input and headphones provide audio output. Headsets are an integral part of serious video game systems.

‘Multifunctional devices (MFD) typically combine the capabilities of a Scanner, printer, fax, and copy machine. These multifunctional devices offer a cost and space advantage. They cost about the same as a good printer or copy machine but require much less space than the single-function devices they replace.

Voice over IP (VolP) is a set of standards or technologies that support voice and other types of communication over the Internet.

‘Telephony, also known as Internet Telephony, is the VoIP application that uses Internet rather than traditional telephone lines to support voice communication

What are drones? Robots? Virtual reality? Headgear? Gloves?

Drones, or unmanned aerial vehicles (UAV), were once too expensive for anything but military budgets. However, todays drones are inexpensive, faster, and smarter, making them a Valuable tool and fun high-tech toy. (See Figure 6-28.) Most drones take input from a controller from either a radio joystick or a Wi-Fi connected tablet of laptop.

Like drones, robotics has become relatively inexpensive with expanding capabilities, Robots use cameras, microphones, and other sensors as inputs, Based on these inputs, robotic outputs can be as complex as exploring damaged nuclear reactors to as simple as taking a photo.

Virtual reality (VR) is an artificial or sated, reality created in 3D by computers. It strives to create a virtual of immersive experience by using specialized hardware that includes headgear and gloves.

The headgear has earphones and three-dimensional stereoscopic screens.

‘The gloves have sensors, that collected data about your hand movements. Coupled

What is ergonomics? How does it relate to input and output devices?

Ergonomics is defitied.as the study of human factors related to things people use It is concerned with fitting the task to the user rather than forcing the user to contort to do the task. For computer users and manufacturers this means designing input and ‘output devices to increase ease of use and to avoid health risks.

47) What tan be Bone to minimize eyestrain, headache, back pain, and neck pain?

Eyestrain and headache: To make the computer easier on the eyes, take a 15- minute break every hour or two. Keep everything you’re focusing on at about the same distance, For example, the computer screen, Keyboard, and a document holder containing’s your work might be positioned about 20 inches away. Clean the screen of dust from time to time.

 Back and neck pain: To help avoid back and neck problems, equipment is adjustable, You should be able to adjust your chair for eye level and the chair should have good back support. The monitor should slightly below eve level. Use a footrest, if necessary, to reduce leg

48) What is RSI? What is carpal tunnel syndrome?

Repetitive strain injury: Repetitive strain injury (RSI) that is caused by fast, repetitive work that can generate neck, arm pain. RST is by far the greatest cause of workplace illnesses, resulting in compensation claims totaling billions of dollars and lost productivity every year.

One particular type of RSI, carpal tunnel computer users, consists of damage to nerves and report the pain is so intense that they cannot require corrective surgery.