0
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
An instruction cycle is the rudimentary operation cycle of any computer. It involves the CPU fetching a program from memory and executing it fully.
A basic set of commands permanently built into the CPU chip?
The instruction set is the list of all the instructions, and all their variations, that a processor (or in the case of a virtual machine, an interpreter) can execute.
Instructions include:
- Arithmetic such as add and subtract
- Logic instructions such as and, or, and not
- Data instructions such as move, input, output, load, and store
- Control flow instructions such as goto, if ... goto, call, and return.
It is a case that contains electronic components of the computer use to process and Calculating data :)
If you've replaced the power supply with a known good power supply (I've seen more than one case where the 'new' power supply was defective) there are 2 other things I can think of that may be causing this. First of all, it could be that there's a cooling problem with your CPU. More than likely, if this is the case, the heat sensor on the motherboard that lets the computer know the CPU temperature is faulty. This is fairly rare. My second idea, unfortunately, is the motherboard. There just aren't too many things that cause a computer to turn off that quickly. One good way to make narrow it down to the motherboard is to strip it down to just the CPU and motherboard and power supply. Disconnect all drives and remove all add-on cards (video, sound, NIC, etc.) The goal isn't to get it to boot per se, but to see if it stays on. You should have ONLY the motherboard with the CPU and power supply plugged in. If it DOES stay on, start putting things in one at a time to figure out what's causing the problem. If this doesn't help or you need additional info, let me know and I'll get back to you ASAP! :)
How do multiple core processors work and what process does the manufacturer use to clock the hertz?
A "core" is all the circuitry needed for one CPU. Early processors like 8080A, Z80, 6502, 8088, 68000 and so on contained one core per package. If you wanted to build a multiprocessor computer with single-core chips, you had to put multiple chips in the machine. Apple made a few of them, but not very many people bought them because only a few programs could use multiprocessing. Photoshop has supported multiprocessing for a long time, so most of the people who bought those machines were serious Photoshop pros.
The "multiple core" processors they sell today are made with multiple CPUs in the same package. To get the multicore feature to work, they wrote support for it into the operating system, and now all programs can use it.
A CPU's hertz is clocked by multiplying a reference frequency from a crystal oscillator. You might have a 3GHz chip, say, but there's no way in the world you'd want 3GHz radio frequency running around inside your computer - microwave and near-microwave frequencies are REAL picky about the circuits they're in. If you didn't have an expansion board shoved all the way in, you could wind up jamming all the satellite dishes in your neighborhood. But in the CPU, which can be properly shielded, they're fine.
Who invented microprocessor trainer kit?
The first British Microprocessor Trainer was designed by Dr. Ravi Raizada of the Limrose Group in 1971, It used the newly available 8080 Microprocessor and about two thousand units were sold during the first few years. Organisations like British Telecom and The royal Navy (UK) bought a large number of the Microtutor MPT8080 to train their technical staff.
MPT8080 continued to be manufactured after some modifications and addition of a keyboard for easier data entry till recently, and early examples will be soon amongst he exhibits at the National Museum of Computing in Milton Keynes.
Why register to register instruction is faster?
Register to register addressing mode is faster because you don't have to do an extra memory access cycle or more.
Register to register addressing mode is faster because:
- Registers are part of and are directly accessibility by the CPU assembly.
- They electronics that make up a register use more expensive but faster circuitry.
- Since it does not require memory access, the steps and time involved in memory address decoding and memory access are skipped.
How do you write delay routine for 1 millisecond using timer 0 of 8051 for 12MHZ crystal frequency?
DELAY: MOV TMOD,#00000001B // Sets Timer 0 to MODE1 (16 bit timer). Timer 1 is not used MOV TH0,#0FCH // Loads TH0 register with FCH MOV TL0,#018H // LOads TL0 register with 18H SETB TR0 // Starts the Timer 0 HERE: JNB TF0,HERE // Loops here until TF0 is set (ie;until roll over) CLR TR0 // Stops Timer 0 CLR TF0 // Clears TF0 flag RET
How is processing power measured?
Processing power is generally measured in Hertz, with most modern computers running into the Gigahertz. Processing power is more complicated though, with concepts like MIPS, Flops an pipelining.
Your computer running on celeron processor do you can change the precessor to dual core?
yes u can.. open the computer... take out the celeron... put in a dual core.... close the computer...
CPU's operate in 3 modes 16 bit 32 bit and 64 bit Respectively the 3 modes are also called?
real mode, protected mode and long mode real mode, protected mode and long mode
Or: 16-bit modes (real, protected or virtual), 32-bit mode (protected), 64-bit modes
What are the advantages of the movs and cmps instructions over the mov and cmp instructions?
Its not an issue of an advantage, it an issue of different purpose.
- mov & cmp operate on individual bytes/characters
- movs & cmps operate on strings of multiple bytes/characters
Does an Intel Pentium 4 processor that is ATAT compatible support SSE2?
All Pentium 4 processors support SSE2.
Conditional results after execution of an instruction in a microprocess is stored in?
Flag register part of psw
The CPU is basically the brain of a computer. It sits in the motherboard of a computer as a central unit. All programs and instructions must go through the system unit before they are executed. When a function is called upon, the CPU pulls it from the Random Access Memory (RAM) and any other hard ware in order to process it.
The CPU then reads the instructions associated to the task before sending it back to the RAM. The data travels through the system bus and this is guided by the CPU Finally, the CPU makes sure the data gets to its destination in the correct order.
The CPU handles the data until when it is no longer needed or when the program is closed.
Your CPU or "Computer Processing Unit" processes all programs and information on your computer.
A company called Intel less than 5 years ago worked out that simply making microprocessors faster will melt the chip not increase the speed of the chip. That is why we now have 2 Core, 4 Core, 8 Core, 16 Core microprocessors currently available.
There is a range of Operating systems currently available such as Windows, Linux, Macintosh. The best one for you is the one that you are most comfortable with rather than the range of software available. Most people who buy a computer get the fastest one with the most memory that they can afford. It is a buyers market so feel free to find what is best for you
What are the three brands of microprocessor?
There are WAY more than 3 brands of processors...
Here is an incomplete list:
Intel
AMD
POWER
PowerPC
Sun SPARC
HP (PA-RISC)
ARM
VIA
Motorola
and more!
Why in port 0 each pin must be connected to 10k ohm pull-up resistors in 8051?
Port 0 has open drain output drivers, so if you want to use it for output (or its external memory address/data bus use) the pull-ups must be provided externally.
Ports 1, 2, and 3 have built in internal pull-ups.
Check your datasheet for details.
What is dual voltage operation?
Dual voltage operation means the unit which has that feature can be operated with one of two voltages. This is a feature that may lend itself to marketing a PC in another country where the line voltage (voltage at the mains) is different. The user is able to select an operating voltage, and it is usually done with a switch. Many PC's have the power supply fastened directly to the back of the case where the power cord goes in. (On most units, the power cord plugs directly into the supply.)Some of these power supplies have a small slide switch on them that permits selection of another operating voltage. A "115" or a "220" for example. By looking on the back of a given unit, one might see the switch that provides for the "dual voltage option" feature of that unit.
