Computers - back to basics
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Computers - back to basics

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Computers - back to basics Computers - back to basics Presentation Transcript

  • Computers: Back to Basics Robin Pierman Schoolcraft College CEPD Winter 2014
  • Elements of a Computer System  DATA is a collection of independent and unorganized facts.  INFORMATION is the processed and organized data presented in a meaningful form.  DATA PROCESSING is the course of doing things in a sequence of steps.
  • PROCESSING SYSTEM DATA INFORMATION
  • What is a Computer?  COMPUTER is an electronic machine that follows a set of instructions in order that it may be able to accept and gather data and transform these into information.
  • Getting to Know Computers
  • What does a Computer Do? 1. It accepts and gather data. (INPUT) 2. It processes data to become information. (PROCESSING) 3. It stores data and information. (STORE) 4. It presents information. (OUTPUT)
  • Information Processing Input Processing Output Storage
  • Components of a Computer System  HARDWARE is the tangible part of a computer system.  SOFTWARE is the non-tangible part that tells the computer how to do its job.  PEOPLEWARE refer to people who use and operate the computer system, write computer programs, and analyze and design the information system.
  • Computer Sizes  MAINFRAME are large general purpose computers.  MINICOMPUTER perform multi-tasking and allow many terminals to be connected to their services.  MICROCOMPUTER (Personal Computer) is most widely used especially at home because of its affordable price and manageability.
  • MAINFRAME COMPUTERS MINICOMPUTERS MICROCOMPUTERS/ PERSONAL COMPUTERS
  • TABLETS SMARTPHONES CUTTING EDGE TECHNOLOGY
  • The Battle of the Brands
  • Discussion  What can you do with a computer?  What kind of computer do you use?  What do you want to do with your computer?
  • Computers: Back to Basics Robin Pierman Schoolcraft College CEPD Winter 2014
  • Review of Last Week  What is a computer?  How does a computer work?  What are the components of a computer system?
  • PROCESSING SYSTEM DATA INFORMATION What is a computer?
  • How does a computer work? Input Processing Output Storage
  • Computer User
  • Hardware  Physical parts of the computer, including processor and memory chips, input/output devices, tapes, disks, modems, cable, etc.
  • Computer Case  Contains the major components of the computer. It helps protect them.
  • Front of the Computer Case
  • Monitor  A display screen to provide “output” to the user. It is where you view the information your are working on.
  • Keyboard  Used to enter information into the computer and for giving commands.
  • Mouse  An input device operated by rolling its ball across a flat surface. The mouse is used to control the on- screen pointer by pointing and clicking, double-clicking, or dragging objects on the screen.
  • Touchpad  A pressure-sensitive and motion sensitive device used in place of a mouse.
  • Printer  An output device that produces a hard copy on paper. It gives information to the user in printed form.
  • Scanner  A device that allows pictures to be placed into a computer.
  • Microphone  Allows the user to record sounds as input to their computer.
  • Inside the Computer Case
  • Processor  The CPU – The chip or chips that interpret and execute program instructions and manage the functions of input, output, and storage devices.
  • RAM  Random Access Memory RAM is a computer’s temporary memory, which exists as chips on the motherboard near the CPU. It stores data or programs while they are being used and requires power.
  • Hard Disk  Magnetic storage device in the computer.
  • CD Rom Drive  The drive that plays CDs and reads data that has been stored on the CD.
  • Sound Card  Connects the speakers and microphone to the computer.
  • Network Card  A circuit board that connects the computer to the rest of the network usually using special cables.
  • What are the components of a computer system? Peopleware Software Hardware
  • What is an operating system?  Play Video
  • The evolution of Windows
  • What are the components of a computer system? Peopleware Software Hardware
  • What is utility software?  It is any system software besides the operating system that helps to maintain, manage, and protect computer system resources
  • Security Software  Search for and remove viruses and spyware from computers, and guard against attacks
  • Defragmentation and Disk Utilities  Maintain files on disk and arrange them in a manner that allows for fast access
  • Backup Utilities  Safeguard files by creating backup copies
  • Spam and Pop-up Blockers  Remove junk mail and ads
  • Music Libraries  Copy and store files on CDs and DVDs
  • Computer User
  • Application Software (apps)  Play Video
  • WHAT HARDWARE ARE YOU USING?
  • WHAT OPERATING SYSTEM ARE YOU USING?
  • WHAT APPLICATIONS ARE YOU USING?