MULTICORE CPUs
Usually before multicore os was discovered ek hi cpu use to perform all the operations such cpu was called uni core processor. Jiske wajah se multiple processing (bahut saare computer programs ek sath perform karna) was not possible. A cpu consist of ALU (that performs all the arithmetic operations), Control unit (cpu ke activities ko control karta hai), registers (yaha pe data temporarily store hota hai). Multicore cpus have more than one set of ALU, CU and Registers which helps in more efficient and faster processing of data. When computer receives data to process data divide ho jata hai between the Cpus jiske wajah se result faster milta hai. Jab processed data chips se nikalta hai woh result ese hi aata hai as if its from a single chip. Now most of the systems have 4 core (quad core) or eight cores (octa core). This helps to increase processing speed and the helps to reduce the heat generated by computer. Multicore systems support multithreading and parallel computing. Multithreading is a process where multiple threads are executed ek hi time pe. Threads means small task that os needs to do threads allow the program to do small tasks ek sath at one time for eg- jab we use web browser ek thread will be responsible for loading, one will be responsible for scrolling, one might be responsible for playing a video. Yeh saare threads work independently (hence result in faster execution) but share same memory. Parallel computing means jab ek problem ko computer small small tasks mai divide karta hai fir end mai result of combine kar deta hai. Parallel computing se complex tasks easily and quickly ho jate hai. Parallel computing mai multiple processors use hote hai joh different tasks ko handle karte hai ek sath. Tho basically multicore processor help the computer to work more efficiently and process tasks quicker.
Neeti Joshi
