Difference between RAM & ROM RAM ROM (Random Access Memory) (Read Only Memory) RAM is volatile memory (the ROM is non-volatile (the information information is lost when you switch off is not lost when you switch off the the computer). computer). It is a temporary memory. It is a permanent memory. RAM is where instructions and data can ROM is where programs are built-in be read and written again and again. at the factory where they are manufactured. Used for programs and data that you Used for fixed startup instructions. are currently working on. Units of Measurement: Unit Capacity 1 Bit 0 or 1 1 b) 8 bits 1 Kilobyte (1 KB) 1024 Bytes 1 Megabyte (1 MB) 1024 Kilobytes 1 Gigabyte (1 GB) 1024 Megabytes 1 Terabyte (1 TB) 1024 Gigabytes 1 Petabyte (1 PB) 1024 Terabytes SOFTWARE Software, or programs, are instructions that tell the computer what to do and how to perform. It is divided into two types Software and Application Software. –System System Software:
Difference between RAM & ROM RAM (Random Access Memory) ROM (Read Only Memory) RAM is volatile memory (the information is lost when you switch off the computer). It is a temporary memory. RAM is where instructions and data can be read and written again and again. Used for programs and data that you are currently working on. ROM is non-volatile (the information is not lost when you switch off the computer). It is a permanent memory. ROM is where programs are built-in at the factory where they are manufactured. Used for fixed startup instructions. Units of Measurement: Unit Capacity 1 Bit 0 or 1 1 b) 8 bits 1 Kilobyte (1 KB) 1024 Bytes 1 Megabyte (1 MB) 1024 Kilobytes 1 Gigabyte (1 GB) 1024 Megabytes 1 Terabyte (1 TB) 1024 Gigabytes 1 Petabyte (1 PB) 1024 Terabytes SOFTWARE Software, or programs, are instructions that tell the computer what to do and how to perform. It is divided into two types –System Software and Application Software. System Software:
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