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HARDWARE AND OPERATING SYSTEM (Computer language and function (Computers…
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Integrated circuit made up whith millions of tiny transistors working together to process the instructions and data recived from the memory.
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computer function
We use the name of hardware for the physical components of the computer system that we use and those thah we can touch and move.
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The smallest unit of information that we can store on a computer is called a bit (b) which is an abbreviation for binary digit
- Output of data using peripheral devices
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- Storing data in the storage devices
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- Processing data in the central processing unit (CPU), using the microprocessor and the memory
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When you turn on the computer, it automatically checks the system. This initial check is carried out using instructions stored in a special readonly memory: the ROM BIOS.
RAM cannot work at the same speed as the microprocessor , so a much faster memory is installed between the RAM and the microprocessor: the cache memory
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When we run an application, its instructions and data are copied to this memory so that the microprocessor can use them.
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If everithing is correct, the BIOS starts the operating system in the main memory, so that this system can take control os the computer.
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The RAM stores data temporarily. when you turn off the computer, this data disappears.
We use data storage units to permanently save this data.
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Inside the computer you can find a large board; we call it motherboard. All the other components of the computer are conected to it.
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- Using an expasion slot on the motherboard, to connect a sound card or a graphics card, for example.
2.By special connector on the motherboard, for such devices as the hard disks, DVD drives and so on.
- Using the external ports on the side or backof the computer like the USB port.
Operating system. Manages the system resources,making them available for use by the user and the applications.
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and other applications like games, antivirus ...
Different computers can have different types of software, but they need an opperating system.
