Featured Post

80186 Microprocessors: Introduction and Architecture

Hello friends, today we are going to discuss the 80186 microprocessor with integrated peripherals. The Intel 80186 is an improved version of the 8086 microprocessor. 80186 is a 16-bit microprocessor with a 16-bit data bus and a 20-bit address bus. It has a programmable peripheral device integrated into the same package. The instruction set of the 80186 is a superset of the instruction set of the 8086. The term super-set means that all of the 8086 instructions will execute properly on an 80186, but the 80186 has a few additional instructions. The following figure shows the block diagram and pin diagram of 80186. The CPU is divided into seven independent functional parts. 80186 internal block diagram  80186 68-pins pin diagram  Functional parts of 80186 Microprocessor The Bus Interface Unit (BIU) Execution Unit (EU) Clock Generator Programmable interrupt controller Programmable Chip Select Unit (CSU) Programmable DMA Unit Programmable counter/timers The Bus Interface Unit
5

Difference Between Static and Dynamic RAM

Hello friends, in this session we are going to discuss the difference between static RAM and dynamic RAM. This memory is a part of primary memory if you want more details about Primary Memory and Secondary Memory. Please visit the link.  

Static Memory

It is a type of semiconductor memory that uses bi-stable latching circuitry to store each bit. It retains stored information as long as the power supply is on.

Dynamic RAM

It loses its stored information in a very short time ( a few milliseconds ) even power supply is on. Therefore dynamic ram has to be refreshed periodically, generally every 2 milliseconds.

Difference between SRAM and DRAM

SRAM     DRAM
1) It need not be refreshed1) Need to be refreshed periodically
2) These are not as dense as DRAM2) They are dense
3) It is fast3) a little slow
4) Low latency4) Longer latency
5) Access time is 25  nanoseconds
5) Access time is 60 nanoseconds
6) Best for internal memory
6) Best for the system’s memory
7) Expensive, consumes more power
7) Inexpensive, consumes less power
8) Stores information as long as the power supply is on.8) Dynamic RAM loses data in a very short time. 

How you found this article, is this useful? I'm sure this will help you more. If you want more information please let me know through comments in the right below. Subscribe to the My Computer Tutors for updates. I will keep updating you with the latest tutorials.


Comments

Post a Comment

Your comment will inspire me, Please leave your comment