Introduction To Technology

Date: _________________________________ Full Name: ________________________________
____________________________________________________________________________________________________
TTI1O – Quiz 1 – Computers, Safety & Ergonomics Page 1 of 3
Mr. J. Carron
TGJ3M – Quiz # 1- Review
Computers, Safety & Ergonomics
Comfortable Computing
• Ergomonics
• The science that seeks to adapt work or working conditions to suit worker
• Repetitive movements and sitting at a workstation for extended periods of time can
result in injuries in the form of :
• Pain, tingling, numbness of the hands, headaches, neck pain
• Soreness in legs, arms and back
• Eyestrain, carpel tunnel syndrome
• These are all considered to be Repetitive Strain injuries
The Chair
• Backrest of chair should have a snug fit against your back
• You should be level with the monitor when seated upright in your chair
The Display
• The recomended veiwing distance is to have your face about one arm lengths away from
the monitor.
• If glare is a problem, position the screen at right angles to the light source
• Do not face a window
• Keep the screen clean
• Adjust the brightness and contrast controls
• Reflections can be eliminated by tilting the screen
The Keyboard
• With computer keyboards, all you need is a light touch while typing
• Typing too hard is bad for your joints and is also bad for the keyboard
• Your wrists should be as straight as possible and your arms should be parallel to the floor
Breaks
• Break up your computer tasks by getting up every once in a while to stretch or walk around
• A good rule of thumb is to only be in front of the computer for 50 minutes of every hour
Computer Lab Safety
• Make sure that all wiring and cables do not obstruct areas where people will be walking
• Be very careful that you don't get an electric shock when plugging and unplugging cables
• Food and beverages can damage the equipment in the lab therefore no food or beverages
around the computers
• No horseplay in the computer lab
• The “One Finger Rule”: If it takes more than one finger of pressure, it is too much and is
considered forcing the object
• Cables are to be taped down to the floor
• Cables are to be coiled when not in use
• Lighting – never touch the light bulbs on studio lamps
Date: _________________________________ Full Name: ________________________________
____________________________________________________________________________________________________
TTI1O – Quiz 1 – Computers, Safety & Ergonomics Page 2 of 3
Mr. J. Carron
Computer Survival Skills
• Know how to manipulate files and folders
• Cut
• Copy
• Paste
• Rename
The Socio Economic Context of Communications Technology
What is Communication?
 Communication is the sending and receiving of information or messages
 In order for communication to occur a message must be both sent and received
 Important: if the receiver does not understand the message then it has not been received!
Purposes of Communication
Inform – to notify or report
Educate – to teach or instruct
Persuade – to convince or influence
Entertain – to amuse or divert
Control – to manage or be in command of
Types of Communication
 Human to Human
 Human to Machine
 Machine to Machine
 Machine to Human
 Supplementary types
Types of Human Communication
 Verbal Communication
 Nonverbal Communication
Perception
 Perception is the process of understanding a message
 You may receive a verbal or nonverbal message from someone, but that message has to make
sense in order for it to be received
 The process of perception can change how you understand a message
 depends on the receivers personal experiences in the past
History of Communication
 pictograms (an easily recognized symbol) e.g. Walk Sign
 Ideograms are symbols that must be learned, e.g. Stop Sign
History of Communication
 A true alphabet was formed when symbols began to represent sounds
 As the alphabet and various languages were developed the printing process and artistic
communication arose
 After electricity and computers were discovered data communication was developed
 Data communication is communication between computers
Technology and Communication
 Technology is… The practical (hands on) application of scientific knowledge.
 Without technology science would just simply remain knowledge!
Date: _________________________________ Full Name: ________________________________
____________________________________________________________________________________________________
TTI1O – Quiz 1 – Computers, Safety & Ergonomics Page 3 of 3
Mr. J. Carron
Technology, Industry and Change
 How does technology differ from industry?
o Industry is an organization that uses technology to produce goods and services for a profit.
Major Eras in American History
The Information Age
 Currently we are in the midst of the information age
 Defined as an era where the majority of people are involved in jobs related to information
Communication Technology
 The purpose of communication technology is to transfer information by technical means
 Communication Technology extends the capabilities of our human senses, e.g. the telephone
Comm. Tech. Categories
 Graphic communications
 Electronic Communications
 Drafting
 Photography
 Print and media
 Telecommunications
The Communication System
 Communication can be described as a system with the goal of transferring information
 Using this systems approach makes it easier to understand the communication process
The Universal Systems Model
 A system has a purpose or goal, this can be called the desired OUTPUT of the system
 The INPUTs are the resources necessary for achieving the OUTPUT
 The PROCESS is the action part of the system, in this step the inputs are changed (or processed)
achieve the OUTPUT
Control Systems
 In many systems, a FEEDBACK loop is added
 FEEDBACK is a way of determining whether the actual results, or output, is the same as the
desired resultsThe Communication System Model
 In a communication system, the purpose of the system is the transfer of information, or the sending
of a message
 Inputs are all of the resources necessary for sending the message.
 Processing is the act of communication