11 markeasy
(c)
A student uses a laptop and a calculator for schoolwork.
Both the laptop and the calculator have read only memory (ROM).
State one reason why both devices have ROM.
Computer Science
13 questions · 45 marks · ≈ 45 min
A student uses a laptop and a calculator for schoolwork.
Both the laptop and the calculator have read only memory (ROM).
State one reason why both devices have ROM.
A finance company uses cloud storage to archive their accounts.
The computers in the finance company use both primary and secondary storage.
One example of primary storage is ROM.
Give one other example of primary storage.
Give two examples of secondary storage
A computer is designed using the Von Neumann model for a computer system.
The computer has a central processing unit (CPU).
Data is fetched from primary storage into the CPU to be processed
State the name of the primary storage from where data is fetched.
Three types of storage media are magnetic, optical and solid state
One example of solid‑state storage is a Solid State Drive (SSD).
Identify one other example of solid‑state storage.
Cassie stores data for her business every day. She stores the data using optical data storage.
Identify three examples of optical data storage.
Six statements are given about the operation of three different types of storage.
Tick (✓) to show which statements apply to each type of storage. Some statements may apply to more than one type of storage.
| Statement | Magnetic (✓) | Optical (✓) | Solid state (✓) |
|---|---|---|---|
| this storage has no moving parts | |||
| this storage uses a laser to read and write data | |||
| this storage uses a read/write head | |||
| this storage burns pits onto a reflective surface | |||
| this storage uses NAND and NOR technology | |||
| this storage stores data in tracks and sectors |
Secondary storage devices are used to store data in a computer.
Identify three components from the list that are secondary storage devices.
Tick (✓) one box to show which statement about secondary storage is correct.
Choose your answer
It is directly accessed by the CPU
It is magnetic storage only
It is used to permanently store software and data files
It is volatile
A computer uses both random access memory (RAM) and secondary storage.
State the purpose of secondary storage.
A finance company uses cloud storage to archive their accounts.
Describe what is meant by cloud storage.
Three types of storage media are magnetic, optical and solid state
Optical storage uses a laser to store and read data from a disk
Explain how the laser is used to store and read data from the disk.
A business is creating a new mobile device that has an SSD as secondary storage.
Give three reasons why an SSD is the most suitable secondary storage for their mobile device.
One type of secondary storage is optical.
From the list, state three examples of optical storage.
Explain why a computer needs RAM.
Draw a diagram to represent how virtual memory is created and used.
A student is using software to create 3D models. This process often requires the use of virtual memory.
Explain why virtual memory is needed for this process.
A finance company uses cloud storage to archive their accounts.
The computers also use virtual memory
Describe how virtual memory is created and used.