ITHELPDESK

RAM – Random Access Memory (Volatile). ROM – Read Only Memory (Non-Volatile). RAM can be classified into 2 types SRAM – Static RAM – Expensive, used mostly in cache memory. DRAM – Dynamic RAM SRAM types ASYNC  SRAM SYNC SRAM Pipeline Burst RAM DRAM types FPM DRAM – Fast Page Mode DRAM ---- Very slow, Access time – 120 ns (Access time: Time taken to retrieve data from memory). EDO DRAM – Extended Data Out DRAM ----- Able to retrieve more than 1 data at the same time Faster than FPM DRAM. BEDO DRAM – Burst EDO DRAM SDRAM  - Synchronous DRAM DDR SDRAM – Double Data Rate SDRAM Other types of memory Cache Memory i) L2 cache – Faster than RAM, 20 to 30 ns. ii) Faster than L2 & RAM, 10 ns. Inbuilt in CPU & smaller in size. Conventional or Base memory – 640 KB size. Extended Memory (XMS) - Expanded Memory (EMS) RAM Error Messages when corrupted General protection error Program performed an illegal operation How to create VLANs? Wha...