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I/O (Input Output), Storage and Computer Architecture

I/O (Input Output), Storage and Computer Architecture. An I/O device acts as an interface between a computer and a user Without I/O devices, a computer is nothing but a box full of electronics!. I/O (Input and Output).

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I/O (Input Output), Storage and Computer Architecture

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  1. I/O (Input Output), Storage andComputer Architecture

  2. An I/O device acts as an interface between a computer and a user Without I/O devices, a computer is nothing but a box full of electronics! I/O (Input and Output)

  3. Input Devices enable you to “tell the computer what to do” or to “feed the computer information” Examples of Input Devices include: Keyboard Mouse Touch-Pad Scanner Microphone Web-Cam Graphics Tablet Ticket or Card readers Can you think of any others? InputDevices

  4. Output devices allow the computer to “talk back to you” or to “provide you with information” Examples of Output Devices include: Monitor Printer Projector Speakers OutputDevices

  5. Long Term Storage RAM Memory (Random Access Memory) Cache CPU (Central Processing Unit) ComputerArchitecture

  6. Long Term Storage is used to store software and data. It is deemed permanent as it is not lost when the computer is turned off. Long Term Storage is typically “slow” but its capacity is high. Examples of Long Term Storage include: Hard Drives Flash Memory (USB Flash Drives and Flash Hard Drives) Optical Storage (Writable CDs and DVDs) Magnetic Tape Long Term Storage

  7. Long Term Storage Devices Hard Drives Optical Storage Flash Memory Magnetic Tape

  8. RAM is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than Long Term Storage It is deemed non-permanent as the contents of RAM are lost when the computer is turned off. Like when you forget to save your work! RAM’scapacity is lower than Long Term Storage, usually ranging between 512 megabytes to 4 gigabytes. RAM Memory (Random Access Memory)

  9. Cache memory is extremely fast memory that is typically contained on the actual CPU. The CPU uses cache memory to store instructions that are repeatedly required to run programs, improving overall system speed. Like RAM, it is a non-permanent form of storage. Cache has the lowest capacity in terms of storage, typically measured in megabytes (1 to 3 megabytes is typical). Cache Memory

  10. The CPU is the “brain” of the computer. The Central Processing Unit (CPU) is responsible for processing the commands from the cache memory. The CPU is the fastest component in a computer, with high-end consumer CPUs being capable of processing up to 12,000 MIPS (Million Instructions Per Second). CPU (Central Processing Unit)

  11. Data Transfer from Long Term Storage to CPU RAM Memory (Faster) Long Term Storage (Slow) C.P.U (The “Brain” of The Computer) Cache Memory (The Fastest Memory)

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