Suitable device and storage media for applications - Memory and storage - OCR - GCSE Computer Science Revision - OCR - BBC Bitesize (2024)

FAQs

What are suitable storage devices and storage media for a given application? ›

Memory and storage - OCRRandom access memory. Primary memory is a key component of a computer system. Its function is to hold data and programs that are currently in use.

magnetic storage devices, such as hard disk drives. optical storage devices, such as CD, DVD and Blu-ray discs. solid state storage devices, such as solid state drives and USB memory sticks.

Read only. ROM is often made from flash memory. This means that its contents cannot be changed easily. This means that the ROM only stores small programs that boots or starts up the computer.

A storage medium may be internal to a computing device, such as a computer's SSD, or a removable device such as an external HDD or universal serial bus (USB) flash drive. There are also other types of storage media, including magnetic tape, compact discs (CDs) and non-volatile memory (NVM) cards.

Flash memory is a type of memory technology that can be used to create primary or secondary storage. It is commonly used to make Read-Only Memory (ROM), and Solid State Drives (SSDs).

Secondary storage is used to store programs and data that the computer is not currently using. It is a long term storage and the data will not be lost when the power is turned off. You will need to remember this key fact for your exam.

Primary storage is a key component of a computer system that enables it to function. Primary storage includes random access memory (RAM), read only memory (ROM), cache and flash memory. Each of these have different uses within the computer.

Its function is to hold data and programs that are currently in use. Part of Computer ScienceComputer systems.

What is the main memory used for GCSE? ›

Main Memory is what we call the main storage region of a computer that the CPU is able to directly access. It consists of both RAM and ROM. RAM stores the data that is currently in use by the CPU, as well as programs currently running. It is a volatile memory which means that once the power is lost, the data is wiped.

John von Neumann invented the processor architecture which stores a program in memory as instructions and executes them sequentially using the ALU, control unit and registers. This is known as the stored program concept. is the design upon which many general purpose computers. are based.

A hard disk drive or solid state drive holds all of the data; files, photos, programs, music, and movies, that the user wants to keep. Removable, external media storage devices such as flash drives and read/writeable CDs and DVDs are also secondary storage. A computer can't function without a storage drive, however.

You can use the SSD for the operating system and frequently accessed files to benefit from its speed, while using the HDD for storing larger files and less frequently accessed data. This setup offers a balance between performance and storage capacity.

Examples: Hard disc, CD, pen drive, solid state driveves etc,. A non-volatile data storage device is a computer hard disc drive (HDD). Non-volatile storage devices are those that retain data even after being turned off. A pen drive is a STORAGE DEVICE, not an input or output device.