Memory is the storage space in the computer where data get the process and instructions needed for processing get store. The memory is divided into a huge number of small parts known as cells. Every location or cell has a unique address which differs from zero to memory size minus one.
Read More : Basic Computer Knowledge
Memory is of three types
- Cache Memory
- Primary Memory
- Secondary Memory
Cache Memory
Cache memory is a very high-speed semiconductor memory that can speed up CPU. It operates as a buffer between the CPU and main memory.
Primary Memory (Main Memory)
- Primary memory holds only those data and instructions on which computer is presently working.
- It has limited capacity and data is vanished when power is switched off.
- It is normally made up of the semiconductor device.
- The data and instruction needed being processed reside in main memory.
There are two sub-categories in Primary memory, ROM and RAM.
RAM :
The RAM is the place in a computer where the operating system, application programs, and data in current use are kept.
RAM is much quick to read from and write to than the other types of storage in a computer, the hard disk, floppy disk, and CD-ROM.
It has two parts:
- SRAM: Static Random Access Memory
- DRAM: Dynamic Random Access Memory.
ROM:
As the name recommend ROM, stores information that can only be read. Modifying it is impossible or very challenging.
ROM is also a kind of non-volatile storage, which means that the instructions in it stays even if the computer give up power.
This is another type of ROM that is impossible or challenging to change.
- PROM – Programmable Read Only Memory.
- EPROM – Erasable Programmable Read Only Memory.
- EEPROM – Electrically Erasable Programmable Read Only Memory.
Important Computer Knowledge – Development of computer
Abacus
- Abacus is known as the first mechanical calculating device.
- Which was used to be performed addition and subtraction easily and speedily.
- Abacus is made up of the wooden frame in which rod where fitted beyond with rounds beads sliding on the rod.
Pascal Calculator
- In the year 1642, Blaise Pascal a French scientist invented the adding machine called Pascal’s calculator which show the situation of the digit with the help of gears in it.
Analytical Engine
- It is known as Analytical engine and the first mechanical computer.
- It consist of such feature which we utilize in today’s computer language.
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That’s why the ‘Mhz’ of a computer’s processor is sometimes mentioned to as the clock speed.
Think about CPUs beating like a heart, this pulsing/beating is expressed as “MHz” e.g.
RAM :Specifically, RAM stands for “Random Access Memory” or “Ready Access Memory”.
It is a temporary notepad where your computer delivers information to the disk, or to the storage place of instructions from other input devices.
In other words, your computer can take data from your hard drive.Also, it can record the results of the work it does back to the disk, which is writing to disk.
The abbreviation HDD stands for the hard disk drive.If you open your HDD, you would find a pancake stack on double-sided disks.4.
Making sure you purchase the best CPU for gaming is not only a vital factor when it comes to your computer’s ability to run these games, but may also help you save a lot of money in the future – if you buy the right processor the first time, you will not have to constantly upgrade your processor in order to meet the demands of the latest games.
YouTube into MP3 converter is a software that will enable you to convert the YouTube videos into the mp3 format i.e.
By just inserting the YouTube video link and pressing the play button the moment you're connected to the world wide web, you may easily convert videos to mp3.There are different ways of downloading your favorite movies from YouTube.
When you are attached, obtain the snapdownloader from the site and save the document.
For that reason, it's important that you consider several factors before purchasing such converters.
It is also vital that you go to get a tool that provides a money back guarantee to its customers when the tool fails to convert any file.
The movie converter has the ability to convert audio formats to the popular war and flv ones.
