What is Processor ? difference between 32 bit & 64 bit processor !

Q1- What is the Processor?

Ans- Processor otherwise known as a CPU (Central Processing Unit)- is an electronic logic circuit that can process the basic computer instructions. Both the miniaturization and standardization of CPUs have increased their presence far beyond the limited application of dedicated computing machines. Modern micro-processors appear in everything from automobiles to mobile phones. Smartphones are equipped with more advanced embedded chipsets that can do many different tasks depending on their programming.

In simple words- "Processor is the Heart of our Device".

Q2- When was the first Smartphone Launched?

Ans- Nokia launch the world’s first smartphone in 1996, the Nokia 9000 Communicator. Weighing in at a sturdy 397 g, the first ever Communicator was driven by an Intel 24 MHz i386 CPU. Running on the GEOS 3.0 operating system, it had a mere 8 MB of memory: Half of which was used for apps, 2 MB for program memory and 2 MB for user data. While these specs might not sound very impressive, in its day the Nokia 9000 Communicator was the best unisex could get. This is probably why it was used by Val Kilmer when he played Simon Templar in the 1997 remake of The Saint.

Q3- What is difference between 32-bit processors and 64-bit processors?

Ans- A major difference between 32-bit processors and 64-bitprocessors is the maximum amount ofmemory (RAM) that is supported. 32-bit computers support a maximum of 3-4GB of memory, whereas a 64-bit computer can support memory amounts over 4GB. This is important for software programs that are used for graphical design,engineering design or video editing, where many calculations are performed torender images, drawings, and video footage.

One thing to note is that 3D graphic programs and games do not benefit much, if at all, from switching to a 64-bit computer, unless the program is a 64-bitprogram. A 32-bit processor is adequate for any program written for a 32-bit processor.

Q4- What is the core in Processor ?

Ans- Each CPU “core” is actually a separate central processing unit, which is the part of the CPU that actually does the work. For example, a dual-core chip may look like a single CPU chip, but it actually has two physical central processing units on the chip.

Additional central processing units allow a computer to do multiple things at once. If you’ve ever used a single-core CPU and made the upgrade to a dual-core CPU, you should have noticed a significant difference in how responsive your computeris.

Q5- What is the ARM in Processor ?

Ans- ARM based processors are the most widely used in modern Smart phones. ARM is a32-bit instruction set architecture based on RISC architecture. ARM processors are particularly used in Smart phones because of its low power consumption and great performance.

ARM holdings provide chip design and instruction set customization licenses to third party vendors like Apple, Qualcomm etc. who design their own products based on the provided architecture.

Various ARM architectures used in Smartphone are ARMv5 utilized in low-end devices, and ARMv6, ARMv7 utilized in recent high performance devices. ARMv7 includes a hardware floating-point unit (FPU) providing improved speed. The 32-bit ARM architecture, such as ARMv7-A, is the most extensively used architecture in mobile devices.

ARM architecture is the main hardware architecture for most of the operating systems of mobile devices such as iOS, Android, Windows Phone, Blackberry OS,Tizen etc

source : miuiForum