Computers have made our lives so much easier. From setting alarms, to organizing schedule sot being the store house of large amounts of data, they have become a tool that we cannot do without on many occasions. Computer refers to devices for storing programs or to store data. This information is stored on the computer temporarily or permanently for later use in a digital format. Computer runs on binary code. all of the information is processed and worked on by the computer through the use of two digits which are 0 and 1. memory right now is composed of silicon transistors running through integrated circuits. There are two basic types in computer – volatile and non volatile.
Volatile memory is that which needs power to keep the information stored. Currently we use Static Ram or Dynamic Ram in computers for volatile memory. There is also the non-volatile memory in computers. This includes a lot of different magnetic storage devices such as CD’s hard drives, USB Drives, Read Only Memory (ROM), flash memory and more in computer.
It is not possible for the memory to access the hard drive each time it needs information, this would slow it down quite a bit. On occasion the computer also accesses information from what is called a cache, for temporary storage and retrieves information regarding what is to be down form what is called a ‘register’. When you turn the computer on a large number of operations are taking place in the different memory areas of the computer.
Firstly it loads itself from the ROM or read only memory and performs various quick checks to ensure all is in order for the system to be up and running. Next it checks information about basic storage devices, plug and play, boot sequences and such from the Basic Input/output system or BIOS from ROM. The next step is where the RAM comes into play where the basic operating system is loaded. When you open any application as your system is done starting up it is initially opened in RAM. When you hit the save button following completion of the task, it is stored into the specific location and all data is purged from RAM.
Computer memory works through an interconnected process between RAM and ROM with the CPU or Central Processing Unit as the mediator. The first stage of storage is the hard disk, which is called virtual memory. It is one that provides large amounts of space and is also cheap. In many cases, you may find that eventually with use, you need to extend the memory of your computer. You can of course use external hard disks or custom USB drives to siphon off pertinent data but people tend to buy memory and have it added on to their laptops or desktops to make it function faster and more efficiently. Based on how fast your RAM is your computer performs better, the read/write function on RAM varies and comes in different forms like DRAM, SDRAM, RAMBUS and so on. Computers are complex devices functioning at a very simple level. Use yours with care!
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