Computer Quarter 3

• Work place hazards can cause death, injuries, and damage to equipment
• Effective workplace safety inspection

  • Maintain a safe work environment
  • Control Unsafe Acts and conditions
  • Ensure Operational Efficiency
• What to inspect

  • The entire workplace
  • Both interior and exterior work environments
• Checklist Categories

  • Building Safety
  • Office Safety
  • Fire Safety
  • Electrical Safety
  • Emergency Equipment
  • Storage Methods
• What to look for

  • Indoor Air Quality
  • NFPA- Life Safety 101 Compliance
  • Housekeeping practices
  • Equipment operation and maintenance practices
  • Unsafe Conditions
  • Unsafe Acts (practices)
• Types of Inspection

  • Formal Inspection
  • Daily/Weekly Inspection
  • Special Function Inspection
• Who can conduct Inspection

  • Employees
  • Supervisors
  • Safety Coordinators
  • Management
  • Safety Committee Members
  • Outside Vendors/Insurance Companies
• Inspection Examples

  • Emergency Equipment
  • Office Safety
  • Fire Safety
  • Electrical Safety
  • Storage Methods
  • Building Safety
• What you have found

  • Unsafe Conditions
  • Unsafe Acts
• What's next

  • Correct Unsafe condition
  • Correct Unsafe Acts
  • Implement Controls
• Implementing Controls

  • Engineering Controls
  • Administrative Controls
  • Protective Equipment
• Document your corrective actions and controls
• Office of Risk Management Support

  • Written Components comprise any operational safety plan/manual
  • Include procedures to identify & control hazards
  • Cover "good" housekeeping
  • Reinforces management's commitment to, and the importance of safety
  • Encourages employees
• Hazards Control Logs (HCL)

  • Location- Posted in the workplace, accessible to ALL employees
  • Purpose: For employees to "report" unsafe conditions
  • Implementation: Train employees, review routinely, maintain on file at least 3 years
• Hazard Control Log Responsibilities

  • Supervisor or Loss Prevention Rep. checks HCL, takes temporary Control, reports to next level if uncontrolled
• Inspection Documentation

  • Person and Date
  • Concerns Identified
  • Corrective Action
  • Fire Hazard
• Checklist Recommended

  • Systematic
  • Site-specific
  • Revise as needed
• Corrective Action

  • Appropriate
  • Effective
  • Immediate – If longer than 30 days: Forward Hazard Control log to Agency Head, Department Head, ORM
• Record Keeping

  • Inspection Report (at least 3 years)
  • Hazard Control Logs (at least 3 years)
• A protocol is a set of rules governing communication within and between computers on a network

  
• Main functions of internet protocols

  • Identifying errors
  • Compressing the data
  • Deciding how the data is to be sent
  • Addressing the data
  • Deciding how to announce send and receive data
• Commonly used internet protocols

  • TCP/IP
  • IPX/SPX
  • NetBEUI
  • AppleTalk
  • HTTP
  • FTP
  • SSH
  • TelNet
  • POP3
  • IMAP
  • SMTP

  
• IP Addressing

  • A number used to identify a device on the network
  • Each device on a network must have a unique IP Address to communicate with other network devices
  • Network devices are devices that move data across the network, including hubs, switches, and routers
  • On a LAN, each host (device that sends and receives information on the network) and network device must have an IP address within the same network to be able to communicate with each other
  • An IP address consists of a series of 32 binary bits (1s and 0s) grouped into four 8-bit bytes called OCTETS
• Five classes of IP address

  • Class A
  • Class B
  • Class C
  • Class D
  • Class E

  
• Subnet Mask


  Indicates the network portion of an IP address

  
• How to use the IPConfig Command

  1. Click the start button then type the cmd (command prompt) on the search box

  2. A black screen will appear

  3. Type the ipconfig and press enter
• Assigning a static IP Address

  1. Open the control Panel's Network Connection icon

  2. Open the icon representing your computer's network connection

  3. Click the properties button in the status dialogue box
• In computer networks, devices/nodes pass data to each other along data connections
• Types of Wired/Cable Media

  • Twisted pair
  • Coaxial Cable
  • Fiber Optic

  
• Twisted Pair

  • Shielded Twisted Pair uses metallic shield wrapping to protect the wire from interference
  • Unshielded Twisted Pair (UTP) is the most popular and cheapest form of cables in the network, with four pairs of wires inside plastic sheathing

  
• Coaxial Cable


  • Used by cable TV and data communications, made up of a single center solid wire symmetrically surrounded by a braided or foil conductor with an insulating dielectrics in between

  
• Fiber Optic

  • Advantages: Much greater bandwidth than metal cables, less susceptible to interference, thinner and lighter
  • Disadvantages: Expensive, difficult to install and splice
• Cables Standards and Connectors

  • CAT5
  • CAT6
  • CAT6A
• Fiber Optic Connectors

  • ST
  • SC
  • LC
  • FC

  
• SAT3/WASC or South Atlantic 3/West Africa Submarine Cable is a submarine communications cable linking Portugal and Spain to South Africa, with connections to several West African countries along the route
• Wireless/Air Media

  • Broadcast Radio
  • Cellular Radio
  • Microwaves
  • Satellites
  • Infrared Signals

  
• Radio Waves

  • A wireless transmission medium that distributes radio signals through the air
  • Requires a transmitter to send the broadcast signal and a receiver to accept the signal
  • Some networks use a transceiver, which both sends and receives signals from wireless devices

  
• Microwaves


  • Provide a high-speed signal transmission
  • Involve sending signals from one microwave station to another
  • Limited to line-of-sight transmission with no obstructions between microwave antennas
  • Microwave stations are often located on the tops of building, towers, or mountains
• Cellular Radio


  • A form of broadcast of radio used widely for mobile communications
  • Operates over land areas called cells, with each served by at least one fixed location transceiver, known as a Cell Site or Base station
• Satellite Communication


  • A communication satellite is a station in space that receives microwaves signals from an earth-based station, amplifies the signals, and broadcasts the signal back over a wide area to many earth-based stations
  • Communications satellites are usually placed about 22, 300 miles above the Earth's equator and moves at the same rate as the Earth