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Computers
7th -
12thgrade
1.1 / 1.2 / 1.3 | GCSE OCR Computer Science J276
54 questions
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- 1. Multiple Choice
1.1 What does CPU stand for?
Central Processing Unit
Computer Protocol User
Cool Pokemon Unit
Computer Processing Unit
- 2. Multiple Choice
1.1 Bob has a 1GHZ dual core CPU, Amy has a 2GHZ single core CPU. Which can process more instructions per second?
Bob
Amy
Equal
Neither can process anything
- 3. Multiple Choice
1.1 Which of the following adjustments to an internal component could improve the performance of a CPU?
Add more cores
Decrease the cache
Get a bigger motherboard
Remove the OS
- 4. Multiple Choice
1.1 What happens if you increase the clock speed?
CPU can process instructions quicker
CPU can process more instructions at the same time
CPU will explode
CPU processes too fast for the cache to handle
- 5. Multiple Choice
1.1 What happens if you increase the number of cores
CPU can process instructions quicker
CPU can process more instructions at the same time
CPU will explode
CPU processes too fast for the cache to handle
- 6. Multiple Choice
1.1 Which of these is an embedded system (firmware)
Computer
Mobile Phone
Pizza
Microwave
- 7. Multiple Choice
1.1 Barry has a 1GHZ dual core CPU. He improves it to a 4GHZ quad core CPU. What is the effect on the performance of his computer?
The number of instructions executed per second doubles
The number of instructions executed per second triples
The number of instructions executed per second quadruples
The number of instructions executed per second improves by 8 times
- 8. Multiple Choice
1.1 Which of these are not a steps in the FDE cycle?
Instructions are fetched from main memory
Instructions are decoded in the control unit
The decoded instruction is executed
The ALU decodes the instructions
The program counter transfers the data to be decoded to the MDR
- 9. Multiple Choice
1.1 Which of the following has the largest memory?
RAM
Cache
- 10. Multiple Choice
1.1 Which of the following is the fastest memory?
RAM
Cache
- 11. Multiple Choice
1.1 Where are the results of calculations stored?
Accumulator
ALU
MDR
CIR
- 12. Multiple Choice
1.1 Which component would calculate the result of 6 * 4?
Accumulator
ALU
Control Unit
MAR
- 13. Multiple Choice
1.1 Which of these are input devices?
Microphone
Headphones
Printer
USB Stick
Scanner
- 14. Multiple Choice
1.3 Which of the following are not secondary storage devices?
Hard Drive
USB Stick
CD
RAM
Registers
- 15. Multiple Choice
1.1 Which of these most resembles an opcode?
Store
7
yes
=
- 16. Multiple Choice
1.1 Which of these most resembles an operand?
Store
7
yes
=
- 17. Multiple Choice
1.1 Which of these accurately describes a motherboard
The central circuit board of a computer/device
The main storage device in a computer system
The main machine that creates microprocessors for computers
The first ever computer system
- 18. Multiple Choice
1.1 Where is the bootstrap held?
RAM
ROM
Cache
Harddrive
- 19. Multiple Choice
1.1 Which is a feature of the address bus
Transfers addresses
Bi-Directional
Carries control signals
Transfers Data and Instructions
- 20. Multiple Choice
1.1 Which of the following are peripherals?
CPU
Motherboard
Mouse
Cache
Printer
- 21. Multiple Choice
1.1 Which of the following are real registers?
Main drive register
Memory address register
Current instruction register
Accomodater
Program counter
- 22. Multiple Choice
1.2 Which of these would be stored in the RAM?
Videos
Music
Instructions
Data
- 23. Multiple Choice
1.2 What is stored in the ROM?
The computers boot up instruction set
The current program running
The operating system
Data the current program is using
- 24. Multiple Choice
1.2 How does a computer use virtual memory?
Sends less used data to the Secondary Storage
Stores less used data in the RAM
Puts more used data into the Secondary Storage
Puts more used data into the RAM
- 25. Multiple Choice
1.2 Which of these are features of RAM?
Volatile
Non-volatile
Read-Only
Read/Write
- 26. Multiple Choice
1.2 What causes slow down in a computer?
Too many programs running meaning the RAM must be used multiple times, slowing it down
Too many programs running meaning Virtual Memory must be used, which is slower
Opening and closing too many programs in a short time meaning the RAM must be used multiple times, slowing it down
Opening and closing too many programs in a short time meaning Virtual Memory must be used, which is slower
- 27. Multiple Choice
1.2 What is Virtual Memory?
A section of memory used as secondary storage
A section of secondary storage used as memory
A section of a network used as memory
A section of memory used as a network
- 28. Multiple Choice
1.2 Which of the following are non-volatile?
RAM
ROM
Cache
Secondary Storage
- 29. Multiple Choice
1.2 Which of these statements mean volatile?
Data is wiped when the computer is turned off
Data can be read and overwritten
Data can NOT be overwritten
Data is NOT wiped when the computer is turned off
- 30. Multiple Choice
1.2 Which of these components act as the main memory in the computer?
CPU
RAM
ALU
HDD
ROM
- 31. Multiple Choice
1.2 What does RAM stand for?
Random All Memory
Read All Memry
Random Access Memory
Read Access Memory
- 32. Multiple Choice
1.2 ROM stands for...
Read Optical Memory
Random Only Memory
Read Only Memory
Random Optical Memory
- 33. Multiple Choice
1.2 The "Random" in "Random Access Memory" means that..
Data and instructions can be stored anywhere in RAM
Data and instructions need to be stored in RAM in a specific sequence..
When data is read from RAM, it is read in a random order
Instructions are carried out in a random order
- 34. Multiple Choice
1.1 What is overclocking?
Running higher speed than the original design
Running a lower speed than orginally designed
running at 2.5GHz
running at 1Hz
- 35. Multiple Choice
1.3 Secondary storage gets its name because...
It is secondary to main memory
It is mostly used in secondary schools
It is fast - things load in a second
- 36. Multiple Choice
1.3 Which one is NOT secondary storage?
Hard disk
Floppy Disk
Cache
CD
- 37. Multiple Choice
1.3 Why do computers have secondary storage?
Primary Storage might be full
To give another option where to save files
Main memory is volatile
- 38. Multiple Choice
1.3 Which of these would match a typical memory stick (flash memory)?
2 megabytes
500 megabytes
8 gigabytes
1 terabyte
- 39. Multiple Choice
1.3 Which of these would most closely match a CD?
200 megabytes
650 megabytes
3.7 gigabytes
600 gigabytes
- 40. Multiple Choice
1.3 Which of these would most closely match a DVD?
650 megabytes
5 gigabytes
250 gigabytes
1 terabyte
- 41. Multiple Choice
1.3 Magnetic tape is useful and cheap storage...
True
False
- 42. Multiple Choice
1.3 Traditional hard drives and old floppy disks use magnetic storage...
True
False
- 43. Multiple Choice
1.3 CDs and SSDs (solid state drives) use optical storage...
True
False
- 44. Multiple Choice
1.3 A typical mp3 track needs about 50 megabytes of space...
No - they are more like 3 megabytes
Yes - that's about right
No - they're more like 200 megabytes
No - they're more like 1 gigabyte
- 45. Multiple Choice
1.3 Solid State Drives are fast, but no good for laptops because they are too fragile when moved...
True
False
- 46. Multiple Choice
1.2 RAM - What happens when the electricity is turned off?
The data from the memory is saved onto flash memory
The data from the memory is not saved
The data from the memory is saved onto the hard disk
The data from the memory is saved onto ROM
- 47. Multiple Choice
1.3 Which storage device stores data using magnetic technology?
Solid State
USB
Internal Hard Disk
External Hard Disk
- 48. Multiple Choice
1.3 Which one is secondary storage?
RAM
ROM
Hard Disk
BIOS
- 49. Multiple Choice
1.3 What is the most durable?
Magnetic Tape
Solid State Drive
Hard Drive
CD
- 50. Multiple Choice
1.3 What is an advantage of a CD?
Easily scratched, leading to the loss of data
Large storage capacity
Expensive to buy
Portable, easy to carry around
- 51. Multiple Choice
1.3 What is a disadvantage of solid state storage?
Easily scratched, leading to the loss of data
Large storage capacity
Expensive to buy
Portable, easy to carry around
- 52. Multiple Choice
1.3 Which type of storage uses lasers to write the data?
Optical
Magnetic
Solid state
All types
- 53. Multiple Choice
1.1/1.2/1.3 In order of fastest to slowest with the fastest on the left and slowest on the right, name each type of memory in order.
Cache > RAM > Hard Drive
Hard Drive > RAM > Cache
RAM > Cache > Hard Drive
RAM > Hard Drive > Cache
- 54. Multiple Choice
1.3 Which of the following should be considered when choosing a method of data storage? (Choose as many as appropriate)
Capacity
Speed
Portability
Durability
Reliability
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