Ict Note

Irregular Access memory is inside the PC which store the information and work with capacity memory to make lessen less and influence space for essential things to like record and documents in light of the fact that for individual protection.

Random Access Memory (RAM) - the storage of data and instructions inside the primary storage is temporary. It disappears from the RAM as soon as the power to the computer is

Hard Disk is a non-volatile data storage device that is used to store and retrieve digital information using platters (rotating disks).

Cache is a volatile form of storage meaning when the computer is turned off, then the data is lost. Cache cost a lot of money to make meaning it has got a higher cost per byte than ram or flash storage. The reason cache is used for storing frequently instructions near or on the CPU is because it's faster than ram and has less latency, but has a higher capacity than registers at a lower but still high cost compared to other types of storage. In conduction is that cache is a high speed form of temporary storage, which acts as a buffer between the ram and the CPU, which stores frequently used instructions which removes the speed decrease from using the system buses and has low latency and cost less than registers and has a higher

Flash memory is a solid-state drive (SSD) that maintains data storage without moving parts, even

Storage Devices are used to store things for a long time. This memory is non-volatile, meaning it won't be lost should power be turned off. Storage devices, like ram, vary in terms of storage capacity. Like RAM, storage devices’ capacity is measured in Bytes (B) and data transfer speed is measured in Bits Per Second (bit/s) or Bytes Per Second (B/s)

Volatile memory is the RAM memory that is lost when your system is rebooted. Nonvolatile memory is the data that gets saved to your ROM memory. An example of Volatile is when a mac computers program is not responding and closes automatically its reopens your latest work rather than losing your work. An example of Nonvolatile is saving your work onto a flash drive or cd.

Linux uses the virtual memory to free up private or anonymous pages used by a process. When a page is ‘taken off’ the physical memory, it is copied to the backing store, also sometimes named swap area. Linux uses the term ‘swapping’, which usually refers to swapping a whole process out from another, to describe ‘paging’, which is the swapping of the inactive pages of a process or processes.

It executes instructions. The major companies that produce microprocessor for IBM and Macintosh computers are Motorola and Intel. Microprocessor requires a primary storage, a system clock and power supply to function as processor. Some families of microprocessor chips are used by quite a lot of types of PCs. The internal components of a standard microprocessor are Arithmetic logic Unit (ALU), Control Unit (CU), cache memory, internal buses and registers. The basic characteristics of a microprocessor are clock speed, instruction set and bandwidth. [Source: (Mcqsetscom,

Processor: Processor is very important hardware in a computer. It allows the operating system to run in a computer. It gives out the command to other programs

can be interfered with and that memory is not stored passively as it is often perceived to be.

Random Access Memory (RAM) allows data to be stored on the computer for a short period of time. When the computer shuts down all the memory is lost; this means when the computer is turned on, there will be more room for data to be stored.

Permanent storage devices are nonvolatile—that is, their contents are persistent and are retained even when power is lost.

This information and instructions for the CPU are stored in Random Access Memory (RAM). This memory is the next hardware component for a bare bones PC referred to as the main memory. The CPU has direct access to any instructions for programs to be executed that are in the main memory and only in the main memory. The main memory is volatile which means it can only store data or instructions when the computer is powered on. The device that stores data when the PC is powered off is the hard drive. It is the computers primary method of storage. Another way it stores memory is through the floppy drive. This form of memory is removable.

Have you ever wanted to know how certain files, documents and so on are being saved and what led this to occur? The memory of computers is quite fascinating and there is so much that goes into saving something on a computer. There are different types of memory that is found on computers that is needed to make things work and that would be acceptable to the user. The main two that is quite known in the computer world would be Primary and Secondary memory. There are 2 types that make up the Primary memory and that would be Random Access Memory (RAM) and Read only memory (ROM). The secondary memory consists of a hard disk drive, flash drive and zip drive. There are also optical discs that are included.