Computers Architecture1

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Computers Architecture1

  1. 1. Computers architecture <br />
  2. 2. Processor (CPU) Memory RAM memory ROM memoryperipheral input peripheral<br /> Output peripheral<br />
  3. 3. CPUThe Central Processing Unit (CPU) or processor is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer&apos;s functions.<br />
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  5. 5. Memory Computer data storage, often called storage or memory, refers to computercomponents, devices, and recording mediathat retain digital dataused for computing for some interval of time. <br />
  6. 6. Computer data storage provides one of the core functions of the modern computer. It is one of the fundamental components of all modern computers, and coupled with a central processing unit(CPU, a processor), implements the basic computer model used since the 1940s.<br />
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  8. 8. RAM Random-access memory (usually known by its acronym, RAM) is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order (i.e., at random).<br />
  9. 9. The word RAM is often associated with volatile types of memory (such as DRAM memory modules), where the information is lost after the power is switched off.<br />
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  11. 11. Exercise: give the caracterestics of RAM storagedevice<br />
  12. 12. Correction:save data provided by user.the information islostafter the power isswitched off.<br />
  13. 13. ROM Read-only memory (usually known by its acronym, ROM) is a class of storage media used in computers and other electronic devices. <br />
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  15. 15. Exercise:give the caracterestics of ROM storagedevice. <br />
  16. 16. Correction:itcontainsBios(1) and boot strop(2)1.the verification of material.2.charged in demarrage of computers.The data saved are permenant. <br />
  17. 17. Peripheral (device) A peripheral is a device attached to a host computer but not part of it whose primary functionality. <br />
  18. 18. Examples are printers, scanners, microphones, webcams, cameras ,TV card ,joypad ,joystick , usb device,reader ZIP, …<br />
  19. 19. Input peripheral An input device is any peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system (such as a computer). <br />
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  21. 21. Keyboard A &apos;keyboard&apos; is a human interface device which is represented as a layout of buttons. Each button, or key, can be used to either input a linguistic character to a computer. <br />
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  23. 23. Pointing A pointing device is any human interface device that allows a user to input spatial data to a computer. In the case of mice and touch screens, this is usually achieved by detecting movement across a physical surface. <br />
  24. 24. Scanner In computing, a scanner is a device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.1-Scanner 3 dimensions2-scanner 2 dimensionsgive the difference between 1 and 2 <br />
  25. 25. 3d scanner<br />
  26. 26. Image scanner, which digitizes a two-dimensional image. 3D scanner, which digitizes the three-dimensional shape of a real object .<br />
  27. 27. Output devicesAn output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) to the outside world.<br />

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