COMPUTER BASICS Processing/Storage

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1 COMPUTER BASICS 1.02 Processing/Storage

2 The performance of a computer is directly related to its components and how well they work together. The CPU, memory, storage devices, and other parts of the computer system must work together to achieve the level of performance users expect and demand.

3 Processing Devices Processing devices are used by computer users to process the input data and generate the desired output.

4 Central Processing Unit CPU (Central Processing Unit) Controls everything the computer does. Interprets and runs the commands the user gives to a computer. Also called the microprocessor.

5 Processing Devices Process the input data and generate the desired output. Processing Devices Central Processing Unit (CPU) Controls everything the computer does. Interprets and runs the commands the user gives to a computer. Also called the microprocessor Referred to as the brain of the computer

6 Memory Memory is where information is stored and retrieved by the CPU. Random Access Memory (RAM) Read Only Memory (ROM) Flash Memory

7 Random Access Memory (RAM) Random access memory (RAM) the main memory allows you to temporarily store commands and data RAM is volatile, which means it is available only while the computer is turned on. RAM The contents of RAM must be copied to a storage device if you want to save the data in the RAM.

8 Read Only Memory (ROM) Read only memory (ROM) the memory that retains its contents even after the computer is turned off ROM is nonvolatile, or permanent memory commonly used to store commands, such as the commands that check whether everything is working properly. cannot be changed or edited ROM

9 Flash Memory Flash memory a nonvolatile memory that retains data even after a computer is turned off. Flash Memory Unlike in ROM, you can erase or modify stored information.

10 Memory Memory is where information is stored and retrieved by the CPU. Random Access Memory (RAM) RAM is volatile or temporary and available only while the computer is turned on. RAM is short term memory RAM short term memory

11 Memory Read Only Memory (ROM) ROM is nonvolatile or permanent memory commonly used to store commands, such as the commands that check whether everything is working properly. cannot be edited or changed ROM is long term memory long term memory ROM

12 Memory Flash Memory a nonvolatile memory that retains data even after a computer is turned off unlike ROM it can be erased or edited. Flash drives and data memory cards Flash Memory

13 Motherboard Motherboard the main circuit board inside the computer case connects input, output, processing, and internal storage devices together tells the CPU how to run sometimes called a system board

14 Storage Devices Storage devices used to store computer information can be divided into two types internal storage devices external storage devices

15 Types of Storage Devices Hard disk drive A magnetic disk that is usually the main storage device on most computers. Floppy disk A portable storage device that allows you to store a small amount of data.

16 Types of Storage Devices CD-ROM A portable storage medium that allows you to store 400 times more data than on a floppy disk. DVD A portable storage medium that is similar to a CD-ROM can store larger amounts of data than a floppy disk or a CD-ROM commonly used to store movies and videos.

17 Types of Storage Devices USB Flash Drive A small portable storage device that is typically the size of a thumb which has less storage capacity as compared to an external hard-drive but are more durable and easyto-use and can be plugged into any computer with a USB drive. A very popular medium of storage.

18 Cloud Storage Cloud storage is a modern, fast growing storage service that uses the Internet and central remote servers to maintain and store data and applications.. Example: Windows Live SkyDrive

19 Storage Devices used to store computer information Hard Disk Drive Floppy Disk CD-ROM DVD Flash Drive Cloud

20 Internal External

21 Click the computer tower to watch the video Computer Tour from howstuffworks.com.

22 THE END

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