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42 Cards in this Set
- Front
- Back
Who built what is considered the first computer?
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The Chinese; An Abacus
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What is computer language called?
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Binary
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Binary is made up of what two numbers?
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0,1
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What is the smallest unit of information recognized by a computer?
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Bit
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How many Bit's are in a Byte?
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8
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What are 8 Bit's called?
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A Byte
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Approximately how many bytes are in a Megabyte?
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1 million
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Approximately how many bytes are in a Gigabyte?
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1 billion
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Approximately how many bytes are in a Terabyte?
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1 thousand gigabytes.
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Communications can travel in _______ and ________.
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Serial or Parallel
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This type of communications travels one bit after the other.
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Serial
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This type of communications travels along side by side lines.
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Parallel
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Half of a byte is called a?
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Nibble
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A kilobyte is approximately how many bytes?
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1 thousand
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Binary numbers are in one of two states. What are they?
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On or Off
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Computers componets can be categorized into four areas. What are they?
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Processing, Input, Output, I/O(Input/Output), and Support
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CPU stands for what, and what category of componet is it?
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Central Processing Unit, Processing.
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What part of a computer is considered the brain?
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CPU
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Microprocessors are made of thousands of these.
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Transistors
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This electrical device consists of many transistors, and other circut elements. First developed in the 1950's.
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Integrated Circuit (IC)
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What is used to keep timing and synchronization in a computer.
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Clock
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Clock cycle speed is measured in?
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Megahertz
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Serial or Parallel communications happens on the computer______?
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Bus
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What are the two types of Cache memory? Where are they located?
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Level 1, on the processor.
Level 2, near the processor. |
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Where is virtual memory stored?
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The Hardrive.
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If the power supply fan goes bad what do you do?
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Replace the whole power supply. Never open it.
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A power supply is rated by what measurement? Ex; 200____.
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Watts
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P8 and P9 connectors are used to supply what?
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Power from the power supply to a mother board.
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What type of connector is standard for supplying power to a floppy drive?
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Berg, or Mini
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What type of connector is standard for supplying power to a hardrive or CD Rom drives?
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Molex
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The colored wire on a ribbon cable is pin#?
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1
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What are four types of power problems that can hurt your computer?
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Spikes, Sags, Brownouts, and Blackouts.
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What does UPS stand for?
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Uninterrubtible Power Supply
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What is a common tool you wear to prevent electro-static discharge from damaging you computer when you work on it.
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Anti-static wrist strap
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Will a device that is damaged by ESD always fail.
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No. It might have intermittant failures.
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To prevent build-up of ESD what range should you keep the relative humidity?
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50-70%
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The best way to put a computer back together is to do what when taking it apart?
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Document the disassembly.
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What was the first large scale degital electronic computer project called?
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ENIAC (Electronic Numerical Intergrator and Computer)
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What two items play the largest role in determining CPU performance?
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Speed and Data bus size
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Should I replace a bad power supply with one that has a smaller rating?
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No
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When connecting the two plugs on an AT-style board, what two wires should be side-by-side?
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The black wires
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An ATX board would use a single power connector with how many pins?
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20
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