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Unit 1 LO2 (2.7 protocols (TCP:Is the set of protocols used over the…

- - - - Advantages
        
        Quality
      - Disadvantages
        
        fragmentation
  - - - Advantages
        
        Any issues can be fixed easily
      - Disadvantages
        
        cannot change the code
  - - - Upgrades
    - - Annual costs
  - - - unique
    - - expensive
  - - - Get a quick taster of what the software is about
    - - Have to pay after the trial if you want to carry on using it
  - - - free
    - - Have to pay inside the software if you want more things
  - - - Has multiple uses
    - - Expensive
- - - - The device is relatively cheap
    - - Only short messages can be sent
  - - - Easy to communicate with anyone in the world with a wifi connection
    - - Both users need to have an email address and an internet connection
  - - - Easy and direct message
    - - Not everyone might have access to the app
  - - - You can have a 'meeting' with people from many different offices /countries without any of them having to travel
    - - A very reliable, fast data link is needed
  - - - It is quick and easy to ask for specific tasks
    - - Can take a long time to get a response
  - - - Video conferencing is an excellent way of keeping in touch with friends and family, even if they are in a different country
    - - There is no substitute for a face-to-face meeting in getting to know someone
- - - - Examples: DOS, WINDOWS 3X, WINDOWS 95/97/98
    - - Can be slow as it does not allow you to multitask
    - - Cheaper to install and buy
  - - - Example:Unix, Virtual Memory System (VMS) and mainframe OS
    - - Printing jobs in the office or library can be best handled by multi user operating system
    - - If one computer get attacked by a virus then other computers also suffer
  - - - example:nokia brick
  - - - Example:Windows NT, 2000, XP, and Unix
  - - - It allows the user to multitask
    - - Can be expensive
- - - - Word processor: A program that is used to create documents such as a letter and cvs
      - Spreadsheet: A program that is used to store numerical and text data
      - Database: A program to store text data
        Email: A program that is used to send messages
    - - IDE: A program that provides comprehensive facilities for programmers
      - Compeller: A program that intrigues users
      - Debugger: A program that debugs data
      - Translator: A program that translates languages
    - - MIS: Is an information system used for decision-making
      - Multimedia: Is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content
      - Project manager:Is the person responsible for accomplishing the project objectives
      - Manufacturing: Is the production of products for use or sale using labour and machines
      - CAD/CAM:Is the use of software to control machine tools and related ones in the manufacturing of workpieces
      - Publishing:Is the dissemination of literature, music, or information
      - Expert systems:Is a computer system that emulates the decision-making ability of a human expert
      - Healthcare: Is the maintenance or improvement of health via the prevention, diagnosis, and treatment of disease