Basics Hardware of Computer
You do not need to know all the details of how a computer works to be successful programs, but understanding the basic principles will help you become proficient the steps we take to implement our programs. It is like taking a cars A little knowledge about internal fire engines helps to explain why you have to do things like fill the gas tank, start the fire, explode the gas and so on. You can learn to ride just by memorizing what you have to do, but small better understand better understand the whole process.
Let’s go take some time to “look under the hood” of your computer. Although different computers can be very different in specific details, in a on top of that, modern computer systems are very similar. The central production unit (CPU) is “brain” of the device. This is where all of the computer control is carried out. The CPU can handle simple tasks such as adding two numbers and can also perform appropriate actions such as tests to see a number or two. They are the same. Stores remember programs and data. Only direct CPU usage data stored in the memory core (called RAM for any memory space). Memories are quick, but they don’t move. That is, while there is power gone, the information on what you remember is lost. Therefore, there must be some second memory to get better permanent storage.
In personal computers, second-level memory is common an internal hard disk drive (HOD) or hard drive drive (SSD). It’s a store data is like a magnetic field on a disk drive, but the SSD uses a circuit board called flash memory. Many computers are also supported secondary memory channels such as USB sticks (and some type of flash memory) and DVD (various digital formats), store information such as eyes designs to read and write with lasers. People communicate with the computer through the computers.
You are probably familiar with basic devices such as keyboard, mouse, and watch (video). Information from machine inputs is processed by the CPU and can be grouped into topic or two memories. Also, when the information should be displayed, the CPU sent to one or more functions machine. So what happens when you type your favorite or the word production? Software? First, the instructions to build the program are copied from (more) remains the second memory in the main memory computer.
After commanding, the CPU begins to execute the program. In particular, the CPU follows a process called search and run cycle. First the command comes from memory, decoded to find out what to do,and appropriate action taken. Then retrieve this statement, converted and killed. The cycle continues, ordering after ordering. This everything the computer does from the moment you turn it on until you turn it on delete: search, decode, execute. Sounds pretty cool, doesn’t it? Yes the computer can execute this stream of simple commands with great speed, go through billions of instructions every second. Collect the same simple instructions the right way and the computer will do amazing things.y