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Published byDeborah Watkins Modified over 9 years ago
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omputer omponents Exit
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software –electronic instructions used to run the computer, also known as programs. hardware –equipment which makes up the computer system such as the monitor, CPU, or printer. Exit
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ata Cycle Exit
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Input-putting information into the computer Processing-organizing information Storage-holds information until it is needed Output-allows user to view or hear information
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Input Devices Mouse Keyboard Scanners Digital Camera Microphone Equipment used to put information into the computer. Exit
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keyboard- used to enter text mouse- allows users interact with the computer using clicks and drags. microphone –allows users to record sound and voice data. Input Devices Exit
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Processing Puts your information in a usable form. CPU-Central Processing Unit Exit
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Central Processing Unit (CPU)- processes and organizes data entered into the computer. It is referred to as the “brains” of the computer. Tower – the enclosure that contains the main components of the computer such as the motherboard, hard drive and power supply. Processor Exit
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Storage Devices used to store information until it is needed. Hard Drive DVDs CD Rom Flash Drive Exit
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hard drive –a storage device built into the CPU. The drive letter is usually C: Jump drive–a portable storage device capable of storing hundreds of floppy disks. The drive letter is usually F: CD – (compact disc) a round shiny disk used to store large amounts of data such as music, text or pictures. The drive letter is usually D: DVD- (digital versatile disc) contains full- length motion pictures Storage Devices Exit
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Output Devices Printer Monitor Speakers Equipment used to take information from the computer. Exit
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printer –an output device which puts data onto paper. The printout is known as a hard copy speakers –an output device which allows users to listen to sound. monitor –a television like output device that allows the user to view data on the screen. Output Devices Exit
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Information Data Flow Exit
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RAM-(Random Access Memory) temporary memory used to run software. The amount of memory, determines how fast your programs will operate. If you do not save the data, it will disappear when you turn off the computer. Two Types of Memory Exit
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ROM-(Read Only Memory) a permanent type of memory that does not lose information, even when the power is turned off. Once data is programmed into the ROM chip, its contents cannot be altered. For example, information for starting up your computer is stored in ROM. Exit
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3 functions of a Computer Even though we think of computers as being “smart” they really only have three main functions. Exit
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3 functions of a Computer etch is responsible for retrieving data from the computer’s memory. ecode’s job is to read the data and determine what is to be done. xecute carries out the job, and then the cycle repeats. A computer carries out these three functions millions of times each second. Exit
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The Operating System (copy what is in pink) After the start up process is completed the operating system is loaded. The operating system is the master program that runs the computer doing housekeeping tasks, such as input and output between the computer and peripherals, and accepting and interpreting information from the keyboard. DOS and Windows are examples of popular operating systems. It translates your instructions into actions. Exit
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User Interface Windows Vista is the operating system used in this lab. Windows is a GUI environment. GUI-graphical user interface allows users to click pictures called 'icons' to communicate with the computer. Icon-a little picture on your screen that you can click on with your mouse. An icon can represent a file, program, peripheral, or tool. Peripheral-any external device that plugs into your computer, such as a printer, modem, scanner, or tape drive. Exit
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