Science 16

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  1. a branch of the study of electricity that deals with the behavior and motion of electrons in a vacuum or in special materials
    electronics
  2. a glass tube containing electrodes sealed in a vacuum
    vacuum tube
  3. what type of emission when the flow of electric current through a vacuum from a heated filament flows to a positive electrode
    thermionic emission
  4. a vacuum tube containing two electrodes and designed to allow current to pass in only one direction
    diode
  5. type of vacuum tube that contains a grid between the cathode and anode, allowing the cornet flowing through the tube to be controlled
    triode
  6. J. J. Thomson discovered that cathode rays at actually stream of what?
    electrons
  7. the Crooks tube and the television picture tubes are examples of what tubes
    cathode-ray tube
  8. the most common type of transistor (found in computer chips)
    field-effect transistor
  9. substance that is neither a good conductor nor a good insulator
    semiconductor
  10. process that adds arsenic atoms to a crystal of silicone to increase conductivity
    doping
  11. what kind of semiconductor contains excess "holes" in the crystal lattice (not additional electrons)
    p-type semiconductor
  12. a semiconductor devise that amplifies weak signals and acts as a switch
    transistor
  13. device that allows current to pass in only one direction
    semiconductor diode
  14. Device that processes information using an electric circuit
    computer
  15. device that consists of solid crystals of semiconductors
    solid-state devices
  16. why are integrated circuits preferred over diodes and transistors
    • smaller
    • more memory
    • cheaper
    • faster
  17. data that can have any possible value within a specified range
    analog data
  18. data that can have only one certain values within a range
    digital data
  19. what is the common coding system that uses one byte per character
    ASCII
  20. what number system is based on the power of two
    binary number system
  21. first general-purpose electronic computer
    ENIAC
  22. how many bits are in a byte
    eight bits
  23. a kilobyte equals how many bytes
    1,024 bytes
  24. what is the number system based on the power system of 16
    hexadecimal number system
  25. device that produce a single binary output based on one or more binary inputs
    logic gates
  26. three basic systems of a computer
    • processing
    • memory
    • input and output
  27. where the computer stores and uses temporary information
    RAM (read-only memory)
  28. a device that converts digital data into analog data and back again
    modem
  29. the "brain" of the computer
    CPU
  30. a single chip containing a complete CPU
    microprocessor
  31. the largest computer network
    Internet
  32. Americas first mass produced computer
    UNIVAC I
  33. actual fiscal components of a computer
    hardware
  34. program stored in a form that the computer's CPU can understand
    machine language
  35. the circuit board that connects all of a computers components
    motherboard
  36. what is the collection of programs that contain instructions for displaying words and images on the screen
    operating system
  37. a computer designed to perform a few functions
    special-purpose computer
  38. Phenomenon in which an electric current flows from a hot filament to a positive electrode
    Thermionic emission
  39. the term for a general-purpose computer designed to be accessed by many users at once
    server
  40. two mane type of software
    • system software
    • application software

Card Set Information

Author:
Rayna
ID:
330299
Filename:
Science 16
Updated:
2017-04-20 21:25:49
Tags:
Science
Folders:
science
Description:
A Beka
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