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Published byAlison Hart Modified over 9 years ago
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Cheap Computer Contest
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Hardware The physical components of a computer system. Examples: Motherboard, DVD Burner, RAM CPU, and etc.
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Software Computer programs; instructions that make hardware work. Example: Microsoft PowerPoint, Adobe Acrobat, AppleWorks Question: Is an Operating System software?
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Keyboard-Standard
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Keyboard-Ergonomic
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Keyboard A hardware unit with a set of switches that resembles a typewriter keyboard and that conveys information from a user to a computer or data communications circuit.
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Mouse Left Click Right Click Scroll Ball
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Mouse A common pointing device. The basic features of a mouse are a flat-bottomed casing designed to be gripped by one hand, one or more buttons on the top, a multidirectional detection device
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Monitor-Cathode Ray Tube (CRT) Display device that uses a cathode-ray tube to produce a picture
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Monitor-Liquid Crystal Display (LCD) an electronic display that consists of segments of a liquid crystal whose color varies according to the voltage applied to them
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Housing the System Computer Case Power supply
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Case Houses the hardware Creates good air flow to keep hardware cool Creates a mounting point for hardware Protects hardware from outside interference
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Power Supply Converts 120volts AC into –12 volts DC Runs Fan, DVD rom, CD rom, hard drive, Motherboard –5 volts DC Mouse –3.3 volts DC Runs the RAM
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Backbone of the Computer System Motherboard Central Processing Unit (CPU) –CPU FAN and Heat Sink Random Access Memory (RAM)
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Motherboard The Motherboard allows all the components in the computer system to interact with one another
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This Hardware component is the brain of the computer system –The CPU device that interprets and executes instructions The CPU produces as much heat as a 100 watt light bulb Central Processing Unit (CPU)
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CPU Fan with Heat sink Used to Pull the heat away from the CPU and keeping the CPU temperature at 95 Fahrenheit
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Random Access Memory (RAM) Also Known as MEMORY-PC Allows for information to be written to and read instantly You DO NOT want to buy the cheapest brand –Three Good Brands Kingston PONY Samsung
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PCI and AGP Cards Network Adaptor Sound Card Video Card
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Video Card Connected to the AGP slot on the motherboard Designed to generate output for the system's video display screen
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Network adaptor Connected to a PCI slot on the motherboard Allows you to access the internet Can transfer 10/100mbps of data
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Sound Card Connected to a PCI slot on the motherboard Designed to produce or reproduce sound
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Storage Devices USB Flash Drive DVD+/-RW Hard drive
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USB Flash Drive Storage device that is inserted into a computers USB port Data is stored in flash memory Data is stored and read electronically
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DVD burner Stores up to 4.5 gigabytes of data on DVD media Uses a laser to burn an image onto DVD or CD One DVD =7CDs One CD =447 3.5 Floppy disks
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Hard Drive (EIDE) The faster the Hard Drive spins the faster you will be able to access the Data stored on it 7200rpms is a speed to look for
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Operating System The purpose of an operating system is: – to organize and control hardware and software so that the device it runs on, ßbehaves in a flexible but predictable way. Graphical User Interface (GUI) –GUIs display visual elements such as icons and windows
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Operating System C hoices Windows NT Linux Unix OPENSUSE
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