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14 - Final Test

 1. The ______________ provides a key operating function for the whole system and is sometimes called the 'brain' of the computer

  central processing unit

  RAM memory

  motherboard

  Hard drive

 2. Sometimes simply referred to as the ___________________, the CPU is where all the computer's calculations take place.

  RAM or ROM

  special register or accumulator

  processor or microprocessor

  motherboard or hard drive

 3. In the days of early comptuers there were 'software updates' and it was not necessary to re-wire a computer by hand (modern computers require manual re-wiring)

  FALSE

  TRUE

 4. The first microprocessor was the Intel 4004, which was created in 1971. Decide if the following excerpt is true or false.
What was significant about the 4004 was that it was all on one chip. Before that computers were a collection of chips

  TRUE

  FALSE

 5. Processors have a speed measured in bits and bytes

  FALSE

  TRUE

 6. Data and Instructions in use are stored in the:

  Hard Drive

  Embedded System

  Main Memory

  Processor

 7. What does NOT affect the performance of the computer?

  Number of Cores

  Clock Speed

  The number of instructions in a program

  Cache Size

 8. If the number of cores increases from two cores to four cores,what is the exact effect on performance?

  The maximum number of instructions executed per second quadruples

  The maximum number of instructions executed per second doubles

  performance decreases

  The maximum number of instructions executed per second is halved which increases performance

 9. If the processing speed goes up from 1GHZ to 4GHZ – what is the exact effect on the performance of the computer?

  The maximum number of instructions executed per second doubles

  The maximum number of instructions executed per second is halved

  The maximum number of instructions executed per second quadruples

  The maximum number of instructions executed per second is quartered

 10. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 2 to 4 – what is the exact effect on the performance of the computer?

  The maximum number of instructions executed per second is halved

  The maximum number of instructions executed per second is quartered

  The maximum number of instructions executed per second doubles

  The maximum number of instructions executed per second quadruples

 11. If the processing speed goes from 1GHZ to 4GHZ and the processor is changed from an 8 core to a dual core processor – what is the exact effect on the performance of the computer?

  The number of instructions executed per second quadruples

  The number of instructions executed per second doubles

  The number of instructions executed per second stays the same

  The number of instructions executed per second is halved

 12. Firmware in which software and hardware are integrated on a circuit board is often used in what type of system?

  Embedded System

  Desktop System

  Operating System

  Point of Sales System

 13. Which is an example of an Embedded System:

  PCs

  Washing Machine

  Tablets

  Laptops

 14. A Processor cannot do the following:

  Process Data

  Execute Instructions

  Execute Data

  Operate in Hz

 15. The part of the processor in which instructions are executed is called the:

  instructions centre

  core

  centre

  registry accumulator

 16. What acts as an intermediary between the processor and the Main Memory?

  Cache

  Clock

  Bus

  RAM

 17. What is held in the cache?

  Instructions that have not yet been processed

  All of the programming instructions

  Data that hasn't been used for a long time

  Commonly used instructions and data

 18. Moore's law predicts that the number of transistors on a circuit board would decrease (by half) every year.

  TRUE

  FALSE

 19. Firmware refers to a combination of hardware and software

  FALSE

  TRUE

 20. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer?

  Doubled

  Sixteen times faster

  Eight times faster

  Quadrupled

 21. If the processing speed goes up from 2GHZ to 4GHZ and the number of cores goes from 1 to 4 – what is the exact effect on the performance of the computer?

  Quadrupled

  Eight times faster

  Sixteen times faster

  Doubled

 22. If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 2 – what is the exact effect on the performance of the computer?

  Eight times faster

  Doubled

  Quadrupled

  Sixteen times faster

 23. If the processing speed goes up from 1GHZ to 4GHZ and the number of cores goes from 1 to 8 – what is the exact effect on the performance of the computer?

  Thirty two times faster

  Sixteen times faster

  Sixty four times faster

  Eight times faster

 24. What component holds the address of the next instruction

  Memory Data Register

  Memory Address Register

  Accumulator

  Program Counter

 25. Results of calculations are held in this register:

  Memory Data Register

  Accumulator

  Program Counter

  Memory Address Register

 26. This holds the instruction/data temporarily after it is brought to the processor from the main memory

  Memory Address Register

  Accumulator

  Program Counter

  Memory Data Register

 27. This holds the number of the current instruction being worked on

  Memory Address Register

  Program Counter

  Accumulator

  Memory Data Register

 28. This would perform an operation including the logic command/word “And”

  Cache

  Arithmetic Logic Unit

  Accumulator

  Control Unit

 29. This would send a signal such as “Memory Read”

  Control Unit

  Accumulator

  Cache

  Arithmetic Logic Unit

 30. This would perform an operation such as 5+8 (1-4)

  Control Unit

  Cache

  Arithmetic Logic Unit

  Accumulator

 31. This would reduce the number of memory/processor transfers

  Accumulator

  Arithmetic Logic Unit

  Control Unit

  Cache

 32. This sends signals such as “I/O Read”

  Accumulator

  Arithmetic Logic Unit

  Control Unit

  Cache

 33. This sends signals such as “Memory write”

  Control Unit

  Accumulator

  Cache

  Arithmetic Logic Unit

 34. This doesn’t happen during the Fetch part of the cycle:

  Status Register updated

  Current Instruction is held in the CIR

  Results are held in the Accumulator

  Instructions are transferred from Main Memory and Hard drive

 35. Which of the following is held in ROM?

  ROM instructions and clocks

  Bootstrap loader

  Data currently in used

  Instructions frequently used (ROM is the same as CACHE)

 36. What carries the address of the next instruction that will be fetched

  System Bus

  Address Bus

  Data Bus

  Control Bus

 37. One of the properties of an address bus is that it is uni-directional.

  FALSE

  TRUE

 38. What is transferred down the data bus?

  Data only

  Data and Instructions

  Addresses only

  Data and Addresses

 39. Which of the following definitions accurately defines a 'peripheral'?

  A device that is directly connected to the CPU

  A device that is plugged in

  A device that is not directly connected to the CPU

  A component of a computer system

 40. RAM is a type of secondary storage

  FALSE

  TRUE

 41. The purpose of the accumulator is to hold the results of a calculation.

  TRUE

  FALSE

 42. "Overclocking" is adding a clock (or several clocks) to the CPU to increase the speed of the computer

  FALSE

  TRUE

 43. A coprocessor is an additional processor which works as ROM

  TRUE

  FALSE

 44. An embedded system refers to a mini system that is built in to each PCs internal CPU

  FALSE

  TRUE

 45. Von Neuman architecture refers to a type of CPU design in which all the peripherals (including printers) are directly connected to the CPU

  FALSE

  TRUE