![]() Magnetic tape - made of a plastic material, stores data sequentially Secondary - nonvolatile, holds data when the computer is off or during course of a program's operation, serves as archival storage Main Memory Devices Semiconductor chips made of silicone - can be volatile or nonvolatile Random access memory RAM - is a volatile memory, in which data can be read from and written to : known as read-write memory Cache RAM stores recently accessed memory - resides on the processor as memory access from main RAM storage takes several clock cycles Read only memory ROM - is nonvolatile : data cannot be written to it, includes BIOS information and the computer system's clock PROM Programmable read-only memory EPROM Erasable programmable read-only memory Secondary Memory Devices Magnetic Disks - made of mylar or metal, used for random-access processing Voice synthesizers : Converts output to voice Memory Devices Main - stores data and is volatile contents are lost when electrical power is turned off Displays output in the forms of soft copy and hard copyģ. Capable of representing information from a computer - form of this output might be visual, audio, or digitalĢ. Leap Motion, Makey Makeys, Arduinos and Raspberry PIs are checked out for two weeks.Factors Affecting the Power of Computers Speed, and Accuracy and Storage and Retrieval Capabilities Speed measured as the number of instructions performed per fractions of a second : Accuracy extremely important for many computer applications Storage saving data in computer memory Retrieval Accessing data from memory American Standard Code for Information Interchange ASCII - data code for text files, PC applications, and the internet, defines up to 128 characters Input Devices Send data and information to the computer - keyboard, mouse, touch screen, light pen, trackball, and data tablet, barcode reader, optical character reader Output Devices 1. ![]() Library Use Only: Map tools, lectern, and projector clicker.Ĭheckout: Cameras and tripods are checked out for three days. Map wheel - Minerva map wheel to measure distance on maps.Planimeter - Bruning USA planimeter, used to determine the area of a two dimensional.Ott small precision pantograph, drawing tool used for maps, blueprints, 4 relief map boxes, 3 medium-sized and 1 large.Kit – instructions Silhouette Vinyl CutterĮlectronic cutting machine for personal use. ArduinoĪn Arduino is a tiny-sized computer that allows you to program basic commands, and build your own circuits with sensors. ![]() ![]() You can use it to turn everyday objects into keys for your computer Microphone Kit MaKey MaKey is an invention kit for the 21st century. The Leap Motion Controller senses how you naturally move your hands and lets you use your computer in a whole new way. Green screen and lights available by request. Silk U-8000 Tripod. Tripod phone adapter available. It has all the components you need to jumpstart your Arduino programming. “With over 50 different parts, 250 individual components, and a high quality UNO R3 Clone, the 16Hertz UNO R3 Ultimate Starter Kit is the kit you need if you really want to get into electronics and programming. Infinity Foot Control – USB Foot Pedal for computer transcriptionġ6Hertz UNO R3 ultimate kit–Arduino compatible.Keyboard kits (4) – keyboard, mouse, SD/micro SD card reader.USB to USB SD card reader extension cables.iPhone 5, 6 & 7 (or iPad 4 and iPad Mini) Chargers. ![]() MAC adapters for use with TV to Computer connection (VGA).Sets of Presentation Cables for TV to Computer Connections (VGA kits). ![]()
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