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Powerpoin Presentation Katrina Parado

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  • 1. COMPUTER SYSTEM HARDWARE INPUT OUTPUTS STORES PROCESS
  • 2. INPUT
    • Input  is the term denoting either an entrance or changes which are inserted into a system and which activate/modify a process. It is an abstract concept, used in the modeling, systems design and systems exploitation. It is usually connected with other terms,  e.g. , input field, input variable, input parameter, input value, input signal, input device and input file.
    HOME
  • 3. INPUT DEVICES MOUSE JOYSTICK USB WEBCAM HOME
  • 4. MOUSE
    • In computing, a  mouse  (plural  mouses ,  mice , or  mouse devices ) is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons. It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features can add more control or dimensional input. The mouse's motion typically translates into the motion of a pointer on a display, which allows for fine control of a Graphical User Interface.
    INPUT DEVICES
  • 5. JOYSTICK
    • A  joystick  is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer. A popular variation of the joystick used on modern video game consoles is the analog stick.
    INPUT DEVICES
  • 6. USB
    • USB (Universal Serial Bus)  is a way of setting up communication between a computer and peripheral devices. USB is intended to replace many varieties of serial and parallel ports. USB can connect computer peripherals such as mice, keyboards, PDAs, gamepads and joysticks,scanners, digital cameras, printers, personal media players, flash drives, and external hard drives. For many of those devices, USB has become the standard connection method. USB was designed for personal computers, but it has become commonplace on other devices such as PDAs and video game consoles, and as a power cord between a device and an AC adapter plugged into a wall plug for charging. As of 2008, there are about 2 billion USB devices sold per year, and approximately 6 billion total sold to date.
    INPUT DEVICES
  • 7. WEBCAM
    • A  webcam  is a video capture device connected to a computer or computer network, often using a USB port or, if connected to a network, ethernet or Wi-Fi.
    INPUT DEVICES
  • 8. PROCESS
    • In computing, a  process  is an instance of a computer program, consisting of one or more threads, that is being sequentially executed by a computer system that has the ability to run several computer programs concurrently.
    • A computer program itself is just a passive collection of instructions, while a process is the actual execution of those instructions. Several processes may be associated with the same program; for example, opening up several instances of the same program often means more than one process is being executed. In the computing world, processes are  formally  defined by the operating system (OS) running them and so may differ in detail from one OS to another.
    HOME
  • 9. STORES
    • Computer data storage , often called  storage  or  memory , refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time. Computer data storage provides one of the core functions of the modern computer, that of information retention. 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.
    HOME
  • 10. OUTPUTS
    • Output  is the term denoting either an exit or changes which exit a system and which activate/modify a process. It is an abstract concept, used in the modeling, systems design and systems exploitation.
    HOME
  • 11. OUTPUT DEVICES PRINTER KEYBOARD MONITOR HOME
  • 12. PRINTER
    • In computing, a printer is a peripheral which produces a hard copy (permanent readable text and/or graphics) of documents stored in electronic form, usually on physical print media such as paper or transparencies. Many printers are primarily used as local peripherals, and are attached by a printer cable or, in most newer printers, a USB cable to a computer which serves as a document source. Some printers, commonly known as network printers, have built-in network interfaces (typically wireless and/or Ethernet), and can serve as a hardcopy device for any user on the network. Individual printers are often designed to support both local and network connected users at the same time. In addition, a few modern printers can directly interface to electronic media such as memory sticks or memory cards, or to image capture devices such as digital cameras, scanners; some printers are combined with a scanners and/or fax machines in a single unit, and can function as photocopiers.
    OUTPUT DEVICES
  • 13. MONITOR
    • A  monitor  or  display  (sometimes called a  visual display unit ) is a piece of electrical equipment which displays images generated by devices such as computers, without producing a permanent record. The monitor comprises the display device, circuitry, and an enclosure. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD), while older monitors use a cathode ray tube (CRT).
    OUTPUT DEVICES
  • 14. KEYBOARD
    • In computing, a  keyboard  is an input device, partially modeled after the typewriter keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However, to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce letters, numbers or signs(characters), other keys or simultaneous key presses can produce actions or computer commands.
    OUTPUT DEVICES