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This is a tricky question not knowing at what level you mean. &nbsp;At one level, it means the way in which the computer's Central Processing Unit (CPU) communicates with memory and peripherals. &nbsp;A deeper level is the way in which the CPU is designed. &nbsp;There are other levels.<br />
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I'd rather focus on the level that's important to you and do the best job at that.
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This is a tricky question not knowing at what level you mean.  At one level, it means the way in which the computer's Central Processing Unit (CPU) communicates with memory and peripherals.  A deeper level is the way in which the CPU is designed.  There are other levels.

I'd rather focus on the level that's important to you and do the best job at that.

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Ok can u explain both pls and I will decide. Thnx 
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Ok can u explain both pls and I will decide. Thnx

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Hello Expert I have been searching to know about Computer architecture, how it works and what kind of architecture are we using these days but in a layman man term if possible or at least in an easy way pls , no wiki , I did got there . Also if possible advantages &nbsp;and disadvantages if possible . thks alot 
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Hello Expert I have been searching to know about Computer architecture, how it works and what kind of architecture are we using these days but in a layman man term if possible or at least in an easy way pls , no wiki , I did got there . Also if possible advantages  and disadvantages if possible . thks alot 

Can someone explain in details what is Computer architecture?

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

Operating Systems

Hardware includes cell phones and other digital living devices, tablets, computers, servers, peripherals and components, printers and scanners, gaming consoles, networking hardware such as routers, hubs, switches and modems, storage devices and security equipment such as firewalls and other appliances.