Intel 286 processor introduces three new features

Multi tasking ability
Virtual Memory support
Two operating modes

Multi Tasking Ability

Multi tasking is the ability of a processor to perform more than one task at any given time. A task is the instruction being executed . In multi tasking the processor is actually executing only one instruction at any given time but it switches so quickly from one task to another that it appears as several tasks are being performed simultaneously.

Virtual Memory Support

An important feature introduced in intel 286 is the support for the virtual memory. The term "virtual" means "imaginary" or "which do not exist actually". Therefore the term "virtual memory" means "imaginary memory" or "the memory that do not exist actually".It is a technique of using free space on a hard disk to store data or instructions that are not required immediately.

Two Operating modes

An operating mode of processor is the way a processor accross the system memory Intel 286 supports two Operating Modes

Real mode : In real mode processor does not support multitasking & can access only the actual physical RAM of the computer

Protected mode : In this mode, the processor supports multi tasking & has access to both the actual physical RAM & the Virtual memory.

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Tweezers

This tool is used tp piking up very small objects like small screws that are inconvenient to pick with human hand.

Asyncronous Communication

Asynchronous &is any data transmission that does not link the two devices with a common data clock. A Signal called a start bit is sent at the beginning of each segment, & a signal called a stop bit is sent at the end, these let the receiving device note the baundries(beginning & end) of a transmission packet. Early PC modems were almost Asynchronous devices operating at speeds of no more than 18,000 bps.

Diference between laptop & desktop computer

Most laptop processors are soldered directly in the motherboard, which means they cannot be removed. If there is some error in laptop processor, the entire motherboard needs to be replaced. Laptops processors can be slowed down when they are not running to their full capacity. The processor uses a technique called processor trotling that allows the operating system to put the processor in active sleep mode or shutdown mode. Laptop processors run at reduced clock rate than desktop processors. This helps them to produce less heat when running at full capacity. Laptop processors consume less power which though make them a slow performer but it greatly helps them to save battery life.

WorkStation Care

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