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45 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Input, processing, output, storage |
Computer performs 4 basic operations. What are these? |
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Program |
List of instructions that tells comp how to perform 4 basic operations |
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Input |
First operation arithmetic or comparison Electrical impulses |
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Processing |
Second operation Arithmetic or comparison (logical) At Very high speed |
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Output |
3rd operation Shows results of processing operation in comprehensive way Data into info |
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Storage |
4th operation Data saved for later use |
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Algorithms |
Computers use this to solve problems Step by step procedure |
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Fetch Execute Cycle Instruction Execute Engine |
Aka ______ Machine cycling through series of operations |
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1. Get the next instruction 2. Figure out what to do 3. Gathering the data needed to do it 4. Do it 5. Save the result |
In a fetch-execute cycle, this sequence repeats in a neverending cycle |
(mnemonic: Get FiGaDo and Save him!) |
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1. Memory 2. Control Unit 3. Arithmetic/Logic Unit (ALU) 4. Input Unit 5. Output Unit |
5 basic parts or subsystems of computer (mnemonic: Aluha ALUkbar will only do memory control to them. Simple, in and out.) |
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Anatomy of computer (diagram ba tawag dito basta figure) |
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Computer fluency |
Skills possessed by comouter literate ppl |
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Charles Babbage 1833 and 1877 |
Father of computing What years? |
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Tim Berners-Lee 1989 |
Invented the World Wide Web In what year? |
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input unit cpu(central processing unit) output unit |
3 basic components of comp system responsible for making comp function |
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input uniit |
help users enter data |
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central processing unit |
brain of comp performs all data processing operations data and commands process acc to instructions provided from CPU |
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Output unit |
processed data converted into format w/c humans can undnerstand |
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ALU (Arithmetic Logic Unit) Memory Unit Control Unit |
3 basic components of CPU |
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Memory unit |
once user enters data w/ input devvices, comp system stores data here. uses set of pre-programmed instructions to transfer data to other parts of cpu |
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arithmetic and logic unit |
performs arithmetic operations mathematical calculations, logical functions |
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control unit |
backbone of computers responsible for coordinating tasks collects data from input units & sends to processing units, then transmits processed data to output units for users |
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OUTPUT DEVICE (visual, data, sound, print) |
piece of comp hardware that receives data from computer then translates that data in another form |
may be visual, data, print, sound |
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monitor |
has screen, circuity, power supply, buttons to adjust screenn settings, and casinf containing all these displays data from comp onto screen |
an output device |
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CRT = Cathode Ray Tube |
display lights up a series of dots with beam on active part of screen |
an output device
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1600 x 1200 px |
maximum resolution caused by CRT |
an output device
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LCD or Liquid Crystal Display |
entered the market in 2000 and outsold CRT monitors in 2007 |
an output device |
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Printer |
create a copy of whatev is sent from comp to printer generate hardcopy |
an output device |
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photocopying aka xerography |
the origin technology of modern day printing |
an output device |
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chester S. Carlson of Queens in 1938 |
he invented photocopyying (and in what yr) |
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plotter |
type of print output device similar type of hardware to printer ( prints vector graphics) |
an output device |
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headphones aka earphones |
output audio from comp thru 2 individual headphones for 1 listener w/out disrupting others |
an output device |
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nathaniel baldwin of utah, 1910, by Naval radio operators |
he(name and place) submitted a headphone prototype to the us navy in (year) which was adopted some yrs by (who?) |
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Koss corporation, 1958 |
first commercial stereo heaphones in what year and developed by whom? |
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computer speakers |
transform signal from computer's sound card to audio create sound using internal amplifiers that vibrate @ diff freq produce sound |
an output device |
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projector |
projects comp images or vid onto wall or screen |
an output device
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GPS sender broadcasts signals to 24 satellites that ping to the sender the location of sender computer in form of long. and lat. coordinates |
radio-based navigation system has sender comp annd receiver how does it work? |
an output device |
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GPS = Global Positioning system |
used broadly across the world in agriculture, aviation, military, sci, etc |
an output device |
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sound card aka expansion card, meaning it can be added to motherboard |
controls output of sound signals, enabling audio devices work another name and meaning of this name? |
an output device |
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when comp data sent thru sound card, it is sent thru card digitally. then sound card translates the digi info (binary) into analog info(vibrations, then sound). |
how does sound card work? |
an output device |
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video card |
expansion card that slots into the motherboard enabling visuals to be seen on display |
an output device |
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braille reader text is sent by comp to device, where it is translated into braille format annd made readable by pushing pins up through a flat surface. |
peripheral device for the blund to read text how does it work? |
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1. 63 character alphabet 2. 1824 3. Louis Braille 4. embossed on paper & other mats |
1. how many charactersin braille alphabet 2. year braille was invented 3. inventor of braille 4. braille was------------ before braille reader technology was invented |
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1. Speed 2. Accuracy 3. Reliability 4. Adaptability 5. Storage |
capabilities of comp system (makes the user exp more efficient) |
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1. lack of common sense 2. zero iq 3. lack of decision making |
limitations of comp systems |
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