Hardware

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Across
  1. 2. usually a chip made from a semiconductor material which carries out the same tasks as a larger circuit made from individual components
  2. 5. the component of a computer’s CPU that ensures synchronisation of data flow and programs throughout the computer by sending out control signals along the control bus system
  3. 9. directs data between networks
  4. 11. increasing clock speed beyond recommended settings
  5. 13. converts analogue data into digital form
  6. 14. loses data when power is off
  7. 16. carries data between CPU, memory, and I/O devices
  8. 21. a register that stores the current instruction being decoded and executed
  9. 22. on-screen keyboard using touch input
  10. 23. CPU with four cores
  11. 25. injury caused by repetitive strain
  12. 27. storage directly accessible by CPU (RAM & ROM)
  13. 28. pattern of lines representing data, read using light
  14. 31. CPU with two cores
  15. 33. fixed IP address
  16. 36. matrix of squares representing data readable by camera
  17. 37. the component of the CPU that carries out all arithmetic and logical operations
  18. 40. complete set of machine code instructions for a processor
  19. 42. temporary IP address assigned
  20. 43. connections between major components carrying data, addresses, or control signals
  21. 47. detects touch via changes in capacitance
  22. 50. hardware enabling network connection
  23. 51. data travels in both directions
  24. 52. a register that stores the address where the next instruction to be read can be found
  25. 53. a label for a memory location used by the CPU to track data
  26. 54. uses secondary storage to extend RAM
Down
  1. 1. cycle of fetching, decoding, and executing instructions
  2. 2. detects touch using IR beams
  3. 3. inkjet method using heat to eject ink
  4. 4. temporary CPU component that holds data or instructions during processing
  5. 6. uses lasers (CD, DVD, Blu-ray)
  6. 7. detects touch via contact between layers
  7. 8. memory that can only be read
  8. 10. CPU unit consisting of ALU, control unit, and registers
  9. 12. a register that stores the address of the memory location currently being read from or written to
  10. 15. excessive swapping causing slowdown
  11. 17. temporary general-purpose register that stores numerical values at any part of a given operation
  12. 18. unique hardware identifier
  13. 19. responsible for the execution or processing of all the instructions and data in a computer
  14. 20. mouse uses LED to track movement
  15. 24. a register that stores data that has just been read from memory or data that is about to be written to memory
  16. 26. cycle clock speeds measured in GHz; represents system clock frequency (e.g. 3.5 GHz = 3.5 billion cycles per second)
  17. 29. offsite storage on remote servers
  18. 30. data travels in one direction only
  19. 31. converts digital data into electrical signals
  20. 32. part of machine code that identifies data to be used
  21. 34. carries control signals from the control unit
  22. 35. a type of computer architecture which introduced the concept of the stored program in the 1940s
  23. 37. carries memory addresses
  24. 38. firmware programs used to initialise a computer during boot-up
  25. 39. vibrates to push ink onto paper
  26. 41. screen that detects touch input
  27. 44. part of machine code that identifies the operation
  28. 45. memory that can be read and written
  29. 46. converts electrical energy into movement
  30. 48. temporary memory using SRAM to hold frequently used data/instructions to improve CPU performance
  31. 49. hardware and software designed for a specific function