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How a Computer Works

How a Computer Works. Business Communication/Presentation. Why study computers?. All jobs intersect with a computer in some way Writing documents Making presentations Developing spreadsheets for mathematical calculations Answering emails Sharing documents among your co-workers

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How a Computer Works

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  1. How a Computer Works Business Communication/Presentation

  2. Why study computers? • All jobs intersect with a computer in some way • Writing documents • Making presentations • Developing spreadsheets for mathematical calculations • Answering emails • Sharing documents among your co-workers • Conducting customer service-taking customers’ money, answering customer complaints • Keeping track of inventory • Using machinery/equipment- operating manufacturing machines, programming equipment so it will do what you want it to do.

  3. Why study computers? Con’t • You are always around computers while you are not working. • Most homes have at least 1 computer, many have 2 or more. • Most kitchen appliances have computers inside of them • Your t.v. is also operated by computer • Your car has many computers that help it to run. • Keeping track of your gas, oil levels. • Programming your CD player and your GPS system. • Your cell phone and MP3 player/IPOD’s all have circuit boards in them

  4. Types of Computers • Desktops • Laptops • Handheld • What is a PC? • Personal Computer- used by individuals at home, school or the office. • A much larger and more powerful computer system used by a major corporation is not known as a PC. In many cases, these are called mainframe computers.

  5. What is the hardware of a computer? • Parts of a computer you can see and touch • Examples: Monitor, keyboard, CPU unit- “the brain” central processing unit, mouse, speakers, printer, scanner, microphones, webcams, headphones, modem.

  6. Types of Software Operating Software Application Software

  7. Operating Systems • In order for a computer to operate and work it must have an operating system installed. • Examples: Windows 8, Windows XP. • MacIntosh and Microsoft have completely different operating systems. That is why you cannot run Microsoft programs on a MAC computer. The interface among different operating systems will not work. • A computer will not run without an operating system.

  8. Application Software • Software that actually does a specific job • Powerpoint – helps with presentations • Word- helps write documents • Gaming – helps in programming games into a gaming system • Graphic – helps in developing ads and marketing pieces for a business

  9. Storage Devices • External Storage- Saves information in an apparatus that is outside of the computer; Different storage devices have varying amounts of storage space. • USB Flash Drive- very portable and convenient; can be easily damaged • External Harddrive- stores large amounts of data • CD- can only store text and some graphics • DVD- stores movies-larger graphic files

  10. Storage Devices Internal Storage- File server for a network of computers; internal hard drive of a computer It is very hard to erase anything off of a hard drive. Usually a hard drive has to be physically damaged before data can be eliminated.

  11. Circuit Boards • All the instructions for a computer are located within circuit boards throughout the computer. Go to Google Images and Google Circuit Boards to see one. • Graphic Cards, Video Cards etc • RAM- Random Access Memory- memory that holds all of the temporary storage- for example memory that does not affect the operation of the computer • Ex: document files • ROM- Read Only Memory- memory that is needed for the vital functions of the computer. The computer will not function if this memory becomes dysfunctional.

  12. Question of the Day-Name a type of application software and a type of operational software?

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