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Ram & rom
This document provides information about RAM and ROM, two types of computer memory. RAM (Random Access Memory) is volatile memory that allows reading and writing and is used to run applications, while ROM (Read Only Memory) is non-volatile and only allows reading to store programs for booting the computer. Key differences between RAM and ROM are outlined, such as RAM being faster but losing data when powered off, while ROM retains data when powered off but only allows writing once. Characteristics of each type of memory are also described.
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Overview of the presentation and objectives, including key topics on computer systems, hardware, RAM, and ROM.
Components of a computer system: hardware, software, data, and user; essential hardware types like processing, memory, input/output, and storage devices.
Description and function of RAM as short-term memory, including typical sizes, types, and its role in quick data access.
Explanation of ROM as non-volatile data storage, its permanence and essential role in boot processes.
Key characteristics and differences between RAM and ROM, addressing volatility, types, and data capacity.
Sources for additional information on RAM and ROM, enhancing understanding of the topics discussed.
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Ram & rom
- 1. RAM & ROM Presented to: Mam Gulfishan Ahsan Rafiq Final (eve)
- 2. Objectives • Computersystem • Essential computer hardware • RAM and ROM • Characteristics • Differences • References
- 3. Computer system •Hardware • Software • Data • User
- 4. Essential Computer Hardware 1. Processing devices 2. Memory devices 3. Input and output devices 4. Storage devices
- 5. Random Access Memoryor RAM • 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.
- 7. • RAM canbe compared to a person's short-term memory and the hard disk to the long-term memory • A typical computer may come with 256 million bytes of RAM and a hard disk that can hold 40 billion bytes. • RAM comes in the form of "discrete" (meaning separate) microchips and also in the form of modules that plug into holes in the computer's motherboard.
- 10. Read-only memory orROM • Read-only memory or ROM is a form of data storage in computers and other electronic devices that can not be easily altered or reprogrammed. • ROM in non-volatile and the contents are retained even after the power is switched off.
- 12. Characteristics RAM •RAM chip is used in the normal operations of a computer after starting up and loading the operating system. • Much faster to read from and write • Data in RAM stays there only as long as your computer is running • A RAM chip can store multiple gigabytes (GB) of data, up to 16 GB or more per chip ROM • Allows you to write data only once and after the data has been written, you can read it an unlimited number of times • A ROM chip is used primarily in the start up process of a computer • A ROM chip typically stores only several megabytes (MB) of data, up to 4 MB or more per chip
- 14. Differences RAM ROM Stands For Random Access Memory Read-only memory Use RAM allows the computer to read data quickly to run applications. It allows reading and writing ROM stores the program required to initially boot the computer. It only allows reading. Volatility RAM is volatile i.e. its contents are lost when the device is powered off. It is non-volatile i.e. its contents are retained even when the device is powered off Types The two main types of RAM are static RAM and dynamic RAM. The types of ROM include PROM, EPROM and EEPROM
- 15. References • http://www.diffen.com/ • http://www.webopedia.com/ • http://www.computerhope.com/ • http://searchmobilecomputing.techtarget.com/definition/RAM • http://en.wikipedia.org/wiki/Read-only_memory • http://computerhardwereinfo.blogspot.com/