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| Trending Hots Topic in Computer Ethics |
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| Viruses, stealing credit card information, identity theft, computer stalking, sharing copyrighted files. |
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| A device that performs the information-processing cycle:Input, processing, output, storage |
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| different components of a microcomputer |
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System Unit
Monitor
Keyboard
Printer |
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| Advantages of Using Computers |
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| Accuracy, Hardware reliability, storage for access later, speed |
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| Disadvantages of using computers |
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| Information overload, Expense of computer equipment, data inaccuracy |
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Word Processing
Spreadsheet
E-mail |
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Backup Programs
Anti-Virus Software
Operating Systems |
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| Operating System platforms |
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Microsoft Vista,
Microsoft Windows XP,
Microsft Windows 7 |
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| Switches from one stage of the machine cycle to the next. & performs that action of that stage |
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| Performs arithmetic and logical tasks |
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| steps of the machine cycle |
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| Retrieves the next program instruction from RAM |
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| Takes fetched instruction and translates into a form the control unit understands |
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| Performs requested instruction using ALU |
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| stores results in an internal register |
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| RAM temporarily stores memory whereas ROM |
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| When contents are erased when computer is shut off. |
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| Temporarily stores data instructions to be used by CPU |
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| central processing unit (processes data into information |
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| read only memory (prerecorded instructions) |
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| random access memory (temporary storage) |
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| complementary metal-oxide semiconductor |
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| hypertext markup language |
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| basic input/output storage |
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| new technology file system (contains file name & location on disk for Windows) |
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| arithmetic log unit (performs arithmetic and logical task |
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| common measurement of data |
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| Input --> Process --> Output --> Storage |
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| Internal & External Hard Drive |
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| Data is raw facts whereas information is information is data that has been converted into a meaningful form. |
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| Internet and World Wide Web |
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| Internet is a network of networks whereas the WWW is information resource used containing billions of documents for users. |
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| Storage is the operation in which information is stored whereas memory is are chips or circuitry located within the CPU. |
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| 1024 bytes and approx. 1 million bytes |
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| Liquid crystal display & cathode ray tude. (Slim v. bulky) |
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| integrates & controls the computers internal functions |
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1. Starts the computer
2. Coordinates Tasks
3. Manages Memory |
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Email
Tax Prep
Web Browsers
Internet Messaging. |
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| catalyze (speed up) reactions |
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| have no true polymers or monomers |
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studded with pores that allow some proteins to enter the nucleus
of a cell while restricting the passage of other proteins |
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| 4 major classes of lipids |
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caratenoids
fats (sat, unsat)
steroids
phospholipid (sat, unsat) |
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| used for energy and storage |
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