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Exploring Computer Hardware
Transcript of Exploring Computer Hardware
Programs - Set of instructions
Commands - Key words
User Response - (e.g. 'yes', 'no', 'ok'...) The computer "speaks" binary The keyboard can input 256 characters The webcam feeds your picture directly into the computer Digitizers covert an image/drawing to a digital signal A trackball Multimedia Input The thinking and calculations that the computer does. Processing hardware stores and retrieves information.
Information is processed using the CPU.
The processed information is saved into the computer's RAM The Process of Processing This machine cycle is run repeatedly The CPU is the most commonly known processing device Graphics Cards... Network Card ...Are responsible for rendering an image onto the monitor/display screen Output describes anything that comes out of a computer It can be meaningful or gibberish, and it can appear in a variety of forms: binary, characters, etc... Output is basically data processed into information Types of Output Hard Copy Printed on permanent media Soft Copy Displayed on screen or by other non-permanent means RAM For more information check out these sites! Devices used to keep information for later use RAM is primary storage - It is volatile Thanks for Watching! It is the transmission and sharing of information over the Internet or other communication systems between two or more computers Multimedia is a combination of sound, graphics and text. It plays the most important role in a computer system - the brain The Processing System The 'Main Memory' stores all the current data and commands to be inputted/proccessed The CPU (Central Processing Unit) executes these commands through the machine cycle Can you figure out the type of output for each of these devices? External Hard Drive Watch this video for some great examples of storage devices In the processing process RAM is Main Memory Many of these 'devices' are auxiliary storage.
They are permanent and relatively safe. Here are some communication devices Router http://www.jegsworks.com/Lessons/lesson1-2/lesson1-1.htm http://www.wacona.com/output/output.html http://www.coolnerds.com/Newbies/Hardware/hardware.htm http://www.webopedia.com/TERM/I/input_device.html http://www.zerocut.com/tech/c_terms.html You've successfully learned about all the different aspects of computer hardware !!!