Chapter 1

• Systems software 


  >enables software interaction with computer hardware >Is a background software that helps manage computer internal resources > Contain programs, Operating system & Utilities
• Operating system


  Coordinates computer resources , provides interface between users & computer & runs applications
• Utilities


  Preforms specific tasks related to managing computer resources
• System software types

  MAC OS X & WINDOWS 11
• Application Software


  > End User software >Grouped Into *Mobile applications- small programs mostly designed for mobile devices *Specialized applications-Programs that are more narrowly focused specific occupations *General purpose applications- Programs that are considered efficient and effective to end user
• Types of application Software


  >Microsoft word >Microsoft excel >Microsoft Powerpoint 2016 >Internet Explorer
• Super Computer


  The most powerful computer, are special high-capacity computers used by large organizations
• Mainframe computer


  Not as powerful as supercomputers but are capable of great processing speeds and data storage
• Midrange Computer/Servers


  Have processing capabilities less powerful than mainframe but powerfuller than personal
• Personal Computer


  Least powerful but are the most widely used computers
• types of personal computers


  >Desktop computers >Laptop >Tablet >Smartphones >Wearable devices
• Personal Computer hardware Components


  >System Unit >Input/Output >Secondary Storage >Communication
• System Unit


  Container that houses most electronic components that make up the computer system
• Secondary Storage


  Secondary storage holds more data than Primary even after been switched off
• Types of secondary Storage

  >Hard Disks- Typically used to store programs an large files >Solid-State Storage-No moving parts ,is more reliable and requires less power >Optical disks-Use laser technology to store data and programs
• Modem


  Communication device that modifies audio , video and other types of data into a form that can be transmitted across the internet
• Data


  Is raw , unprocessed facts
• Information


  Is processed data