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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 classification of CPU?
By type
embedded/unembedded
analog/digital/hybrid
By Capability
Business oriented/scientific
By size
micro (including desktops/laptops/tablets/notebooks/palmtaops/PDAs
Mini or mid-range
mainframe
supercomputers
How many bits could the first microprocessor handle at one time?
The first microprocessor was the 4004. It could handle 4 bits at a time.
What type of processor does a Dell Precision 410 workstation have?
The Dell Precision 410 workstation was equipped with either a Pentium II or a Pentium III processor, at a speed between 350 and 700 MHz.
Can you install a 800MHz CPU into a 120MHz Pentium 1?
No. There is no possible upgrade for a computer with a 120 MHz Pentium to an 800 MHz processor. You couldn't even replace the motherboard, as the case would not support newer motherboards (AT/Baby AT vs. ATX/microATX)
Check with the motherboard processor compatibility sheet of the motherboard you have first. A BIOS update may be needed for your current motherboard.
What is the function of modem card to the CPU?
A modem is a serial port interface to a telephone line, allowing you to create dialup connections to other modem equipped computers. Often, a modem card includes a serial port interface, a COM port. The term modem has also become applicable to other interfaces, such as DSL modems and cable modems, though that usage is tenuous in some cases. Modem stands for Modulator/Demodulator.
um looking at the speed difference the 2 ghz and 2mb cache is better but if the speed diff. was like 2 ghz and 2mb vs 3ghz and 1 mb then go in for the 3 ghz one as in this case the larger memory storage gives u an advantage in many areas
What is the size of a microprocessor?
depends greatly on which microprocessor. Many are approxamately one centimeter squared.
What type of latest techniques are used in new processors?
The newest models of CPUs are starting to consider architectural reworkings of everything we know about processors-- This is coming hand-in-hand with the reworkings of other computer components as we approach the limits of matter. Downsizing techniques are expected to be the trend for the time being, with Intel working at a 22 NANO-meter scale, while AMD is working at 32. Intel's next leap is either 16 or directly to 14 nanometer, continuing a processor improvement trend highlighted by Moore's Law: Moore's Law is the observation that over the history of computing hardware, the number of transistors on integrated circuits doubles approximately every two years. - Wikipedia, cited from CNet News
New processors generally all favor threading over raw per-core performance, and are built in order to utilize higher and higher program threading (Splitting the computer's workload into smaller 'streams' of data) This directly feeds into yet another technique used by Intel, AMD, and ARM for their processors-- Multi-core processors and Hyper-Threading (HT). Threading programs better utilizes multiple processor cores (Or to more efficiently utilize each individual core, in the case of Hyper-Threading) on a multi-core platform, lending to an ever increasingly powerful overall processor.
A computer instruction is a command given to the computer to perform an operation.There are three instruction code formates.
- Memory - reference instruction
- Register - reference instruction
- Input - output instruction
If you mean "Computer Instruction" as a field of study, then that is learning how to use computers.
What is the role of the microprocessor or CPU?
The Central Processing Unit (CPU) or processor is the portion of a computer system that carries out the instructions of a computer program, and is the primary element carrying out the computer's functions. This term has been in use in the computer industry at least since the early 1960s (Weik 2007). The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation remains much the same.
Unfortunatlly there is no "quick" fix to this... The game requires your computer to perform at a certain level, and your graphics card doesn't support this, and software can't make your graphics card much better. Therefore, your only options are: 1. Simply don't play the game. 2. Open the README file and check the minimum requirements, then buy a graphics card that betters those requirements.
Tiny specialized microprocessors installed in smart appliances and automobiles are called?
microcontrollers
Microprocessor of 8257 dma controller?
8527 DMA controller
The 8527 controller has four independent channels each of which contains an address register and a counter. The counter decrements as each byte transfer occurs, and forces termination of the DMA operation after the last transfer. The controller increments the address register after each operation, so that successive data transfers are made at contiguous ascending addresses.
The arbiter resolves conflicts among the channels for access to memory. Two methods have been used in this chip to make the chip useful in a variety of different applications. In one mode the channels have a fixed priority and conflicts are resolved according to the priority, for example, Channel 0 has highest priority and Channel 3 lowest. The second mode is a rotating priority scheme in which priority rankings are the four cycle shifts of 0-1-2-3, when a channel is granted access to the bus the priority ranking shifts cyclically to place the channel in the lowest priority position for the next arbitration cycle.
Structure of the 8527 DMA controller
The chip has four signals associated with the READ and WRITE operation. MEM READ L and MEM WRITE L are signals produced by DMA controller to exercise memory. The two signals I/O READ L and I/O WRITE L are bidirectional, they are inputs from the microprocessor when the microprocessor sends commands to the 8257 and reads back the 8257 status. During the I/O operation these signals are output from the 8257 and are functionally opposite to the memory signals. The 8257 takes control of the bus by exercising HALT (HRQ) and receives back the "go-ahead" signal on HALT ACKNOWLEDGE (HLDA).
Two signals produced by the DMA controller can be used by the I/O port to assist in controlling the transfer process. One signal TC--terminal count--is asserted during the last cycle of a DMA block. This can be used to describe a DMA mode on an I/O port or to reset the port's internal state to indicate the end of a transfer. The second--MARK--is inserted when the remaining count on a channel became a multiple of 128--providing a convenient timing signal for an external device.
Block Diagram
Pin Configuration
Three Transaction Methods for Peripheral IOs:
• Programmed IOs (like 8255 port used without handshake and Intr signals)
• Interrupt Driven IOs (like 8255 port used without handshake and Inter signals)
• DMA Transactions using a DMAC
Direct Memory Access Control (Peripheral Transactions Server) IOs
· Controller or server sends hold request for processor to grant on acknowledgement, the access to address and data buses, IORD, IOWR, MEMRD, MEMWR and IO buses.
· Once programmed for address of RAM block for transfer and for data counts of IO transactions with RAM, interrupts only at the end of a block transaction or last transaction.
8257 Four Channel DMAC Features:
· Four channels,
· Priority Resolution support,
· TC output and Mark output (after 126 bytes transfer) for interrupts to processor for attention,
· Auto-load on TC mode support for repeat transactions without reprogramming TC and MAR and mode,
· TTL level inputs/outputs compatible with INTEL families.
What is the major disadvantage of using a peltier heat sink?
too much condensation
the peltiers top surface can be as hot as 500 degrees while the bottom surface next to the processor can be as cool as 45 degrees major disadvantage is the drastic temperature difference which can cause condensation when the PC is turned off.
What is the fastest processor upgrade for a Dell Optiplex 110?
Based on available information, the board supports a FSB speed of 133 MHz, and thus the fastest processor that can be installed would be an Intel Pentium III at 1.4 GHz.
What is the function of the control unit in the CPU?
The control unit provides the timing and control signal to all operations of microcomputer.
It control the flow of data between microprocessor and memory and peripherals.
How does cache size affect CPU performance?
The short answer: The more you have up to a reasonable point, the faster the performance.
Cache memory is a special, high-speed memory that is faster than DRAM. It is usually static memory, meaning that rather than being made of cells that contain a capacitor and a transistor, the cells contain 4-6 transistors. That costs a bit more and takes more current than DRAM, but it is fast. Since the cache is all in the CPUs these days, that also helps the speed.
Anyway, since the cache is so fast, the most used data gets held there. So rather than having to fetch it from memory, when the machine might be between clock cycles or the DRAM busy with a refresh cycle, the CPU gets it directly from the cache with less access penalties. So obviously, the more of this special memory is available, up to a certain point, the faster programs can run.
