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Microprocessors

A microprocessor is the heart of any computer, whether it is a server, a desktop machine, or a laptop. This single chip contains the arithmetic, control, and logic circuitry necessary to interpret and execute computer programs.

2,578 Questions

What are the Modern usage of microprocessor?

Microprocessor is nothing but the Integrated Circuits (ICs), are found in many applications from household - Microwave Ovens, Refrigerators etc. to time critical and the mission critical applications such as Nuclear Power Reactors, Aerospace vehicles and even could found in our digital computers.

Microprocessor's components include the storage devices such as the registers, the devices to perform the arithmetic and logic operations and control devices which control the flow of information through the Microprocessor.

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Diff bw risc and cisc?

CISC stands for Complex Instruction Set Computer. CISC chips are relatively slow per instruction,but use little instructions RISC stands for Reduced Instruction Set Computer. A fewer, simpler and faster instructions would be better, than the large, complex and slower CISC instructions. However, more instructions are needed to accomplish a task. It's easier to write powerful optimised compilers, since fewer instructions exist.

Is it possible to upgrade a processor without reinstalling the OS?

1) you can install a new processor if a) your motherboard will support it b) it is the right type of socket or slot

2)you do not need to re-install anything for a new processor.. the only time you need to re-install is when changing hard drives

3)a faster CPU may help, depending on to what type it is, and sometimes more ram does the trick also..

Yes, it may give you a message when you boot into Windows after the installation of the new hardware saying, "Change in Hardware, please reactivate Windows," and all you have to do is give Microsoft a call and they'll activate it for you.

Discuss the concept and importance of semaphores?

n programming, especially in Unix systems, semaphores are a technique for coordinating or synchronizing activities in which multiple processes compete for the same operating system resources. A semaphore is a value in a designated place in operating system (or kernel) storage that each process can check and then change. Depending on the value that is found, the process can use the resource or will find that it is already in use and must wait for some period before trying again. Semaphores can be binary (0 or 1) or can have additional values. Typically, a process using semaphores checks the value and then, if it using the resource, changes the value to reflect this so that subsequent semaphore users will know to wait.


Semaphores are commonly use for two purposes: to share a common memory space and to share access to files. Semaphores are one of the techniques for inter-process communication (IPC). The C programming language provides a set of interfaces or "functions" for managing semaphores.

What is most significant bit?

In a byte MSB is the bit that represents value 2^7, LSB is the bit that represents value 2^0.

What processors are used with Socket AM3 Connector?

The Socket AM3 Connector is compatible with the AM3 and AM3+ processors, but not AM2 or AM2+ processors, which have 940 pins instead of the 941 pins of the AM3/AM3+.

What is the difference between register addressing mode and register indirect addressing mode?

Ans: In the register addressing mode the operands are in registers which reside within the CPU. Register-mode instructions are 1-byte instructions and can be executed within the CPU without the need to reference memory for operands.

But in the Register-indirect addressing mode the instruction specifies a register or a pair of registers in the processor whose contains give the address of the operand in memory. This mode uses 1-byte instructions even though the operand is in memory. Before using a register-indirect mode instruction, the programmer must ensure that the address of the operand is placed in the processor register with a previous transfer-type instruction. A reference to the register is then equivalent to specifying a memory address.

Which two considerations would be of the greatest importance when building test importance when building a workstation that will run multiple virtual machines?

The consideration that would be of the greatest importance when building a workstation that will run multiple virtual machines would be the number of CPU cores. The other would be the amount of RAM.

What do you do when mIRC is giving you the error unable to create socket?

The best thing you can do when mIRC is giving you an error that it is unable to create a socket is to check your firewall settings. Another solution is to change the server as the current one may be offline.

Can you use a French socket in Denmark?

There are two facets to this question: Can it be used safely, and can it be used legally. This applies to foreign fixtures in any country. This is a matter of the rating on the components. You cannot exceede the voltage capacity of the outlet or it will arc internally. The voltage of the circuit feeding the outlet must be the same as the voltage the outlet is designed for. You can use a 220V US NEMA outlet on European 220V safely, but you can't use a US 110V outlet. Also, the overcurrent device on the circuit must be less than or equal to the maximum current rating on the fixture. A 10A or 15A breaker is okay for a 110V 15A US outlet, a 20A breaker is not. If you respect the voltage rating and insure the current rating will not be exceeded, the fixture should be safe. This is another matter entirely. It is a matter of wether or not whatever regulating body that certified the outlet is recognized in your country. You will need to contact your local building inspector / code inforcement person to find out for sure. I wouldn't get my hopes up.

How does wattage of processor affect performance?

More wattage means more heat could be generated. Causing your cooling needs to be greater.

Comparing two processors by wattage, unless your trying to use less energy, should not play a factor in performance.

Is scientific calculator is an embedded system?

Yes, the scientific calculator is an example of an embedded system. In fact, an electronic calculator was one of the first applications of an embedded microcontroller. It is considered an embedded system because in addition to calculating answers, it is also handling low level functions such as input from the keypad and output to the LCD screen.

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Intel designed their first microprocessor (Intel 4004) for a Japanese calculator company called Busicom to replace a far more complex chipset that the company had designed themselves but was beyond Intel's ability to make at the time. Busicom did build the calculator as an embedded system based on the Intel 4004, but they eventually canceled the contract and gave Intel permission to sell the Intel 4004 to other companies.

What is FPU?

An FPU or floating point unit is the part of the microprocessor that does math.

What is the number of prcessing cycles that a microprossors can perform in a given second?

All depends on the processor. The processors specification should include a 'clock speed' which will be specified in multiples of Hz. 1 Hz = 1 cycle per second