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Computer configuration resolution
1. 1 [open and screen saver]
The opening of computers is an important link, and it involves the first step in our daily use of computers. Computers are generally operated in cold and heat mode. The cold start is the most common, just press the double button. If the computer appears dead, you can try to press the compound button on the host, usually near the main power source. In case of power outages or system collapse, thermal start-up is usually required. In addition, maintenance of computer screens is essential. In general, ordinary computer screens have a lifetime of approximately five to six years. In order to extend the useful life of the screen, it is recommended that it be closed on time if it is not used. At the same time, opening the screen saver was not a practical benefit and was therefore not recommended. In addition, hard-disk partitioning is a link that requires attention during computer use. The appropriate number of partitions (usually between 3 and 5 sectors) helps to keep documents in an orderly manner and avoid confusion. When searching for information, it is recommended that similar files be grouped into a folder and that you take note of the naming instructions when you create a new folder. In addition, in installing the software, the principle of installation in the original folder should be followed to ensure the stability and compatibility of the system。
1. 2 [to kill and clean]
Unloading of software is as important as cleaning during computer use. The timely elimination of software that is no longer required will save disk space while avoiding unnecessary programme conflicts. At the same time, computers may be at risk of poisoning and it is therefore recommended that poison-killing software be installed to protect them. Drugs-killing software common on the market, such as 360, the golden hills drug lord, can effectively prevent and detect viruses. However, poison software settings need to be regularly viewed to ensure that they do not alter computer configurations in bad faith, thereby affecting work or learning. In addition, the performance of computers as a central tool in the information age is increasing as the production process increases. However, caution remains to be exercised in using it to avoid damage to computers as a result of improper operations. We should take care of every computer as we treat precious bodies。
Basic cpu knowledge
2. 1 [bit and word length of cpu]
In digital circuits and computer technology, binaryism is the basis, with “0” and “1” as core codes. In cpu, both “0” and “1” are considered a “bit”. The word length is the number of binary digits that cpu can process once in a unit time. For example, a cpu that handles eight data is commonly referred to as the eight-digit cpu, while 32-digit cpu processes 32-digit binary data simultaneously. It is worth noting that place and word length are different concepts. Normally, eight are defined as one byte, but the length of the word is not fixed and varies depending on the cpu. For example, eight cpus can handle only one byte at a time, while 32 cpus can handle four bytes simultaneously. Similarly, 64 cpus can handle eight bytes at a time。
2. 2 [extended cpu command book]
The cpu command system is the basis for the computing and control system and each cpu is designed with a set of instructions compatible with its hardware circuits. The richness of these directives directly reflects the performance of the cpu, and the set of instructions is a key tool for improving the efficiency of microprocessors. The current mainstream system of command sets can be divided into two categories: complex and streamlined. Specifically, technologies such as mmx in intel (multimedia extension), sse, sse2 (multi-data flow extension 2), sse3 and amd 3dnow! Are an expansion of the original cpu command set, which enhances the cpu's capabilities in multimedia, graphic imagery and internet processing, respectively. Typically, these extended sets of instructions are collectively referred to as “the set of cpus”. It is worth noting that sse3 is the most compact set of commands at present, containing only 13, although it is the most advanced set of commands technology at present. Currently, the prescott processor in intel is already supporting sse3 and amd is planning to add support for this technology to the future dual nuclear processor, which will also be supported by the all-maida processor。
2. 3 [main frequency]
The main frequency, also known as the clock frequency, is mhz, which is used primarily to measure the operating speed of cpus. The main frequency formula is the external frequency multiplied by the multiplier factor. However, the main frequency is seen as the only factor determining the speed of cpu operations. This view is particularly misleading in the area of servers. So far, we have not found formulas that clearly link the main frequency to the actual operating speed. Even the lead companies in the processor industry, intel and amd, are widely controversial in this regard. Nevertheless, it is clear that intel has given high priority to the upgrading of the main frequency in its product development strategy. However, other processor manufacturers, such as the all-mada, have also demonstrated a 1ghz processor that can operate with comparable operating efficiency to the 2ghz intel processor. This is further proof that there is no direct correlation between the main frequency and the operational capability。
2. 4 [extraordinary]
The external frequency is the base frequency of the cpu, also in mhz. It determines the speed of the entire main board. In day-to-day use, we refer to ultra-frequency operations, which usually refer to the enhancement of the extra frequency of cpus. (it needs to be noted that the cpu frequency is usually locked.) this may be easier to understand on the desktop main panel, as many of the main boards support walk-in. However, in the server area, overfrequency is strictly prohibited. Since the server cpu needs to run in tandem with the main panel, a change in the external frequency would result in a different pace, which would seriously affect the server's stability。
Hardware systems
3. 1 [ram]
Memory, as an internal memory that can be read directly by cpu, exists in the form of a chip and is referred to as the “main storage” or abbreviation “main storage”. Common memory chip strips, i. E. " memory bars " , need to be inserted into the memory slot on the main plate to work. In addition, there is a memory called cache, which may be embedded in the cpu or the main board. The memory capacity of the machine usually refers to the capacity of the memory bar, which can be viewed in the computer startup video, dos command or windows system resources。
3. 2 [showcards and monitors]
The display card, inserted in the main panel extension slot, is a key element to connect the monitor to the main panel of the pc. It is responsible for converting the display signal from the host into a telecommunications signal, enabling the monitor to interpret the pc commands. Displays the " show memory " that you have on your card that affects the performance of the monitor, such as clarity and colour richness. Monitors, which are the output devices of computers, are the early crt monitors, mostly in the form of cathodes, and now use lcd or led techniques。
3. 3 [disk and drive]
Disk, as one of the external storage units of the pc, is divided into two categories: hard drive and diskette. Their common feature is the use of magnetic media to store data, and therefore the name "disk". In order for the pc machine to be able to read the data on these disks, they must be placed in a specialized device, the disk drive. Hard drive, known as hard disk, translated directly into chinese as “hard plate”. Since hard drives are usually installed in hard drives, they are often confused. The size of the hard drive is usually 3. 5 inches, and its capacity is calculated in the order of terabytes (m) and gibytes (g), ranging from tens to thousands of gigabytes. The c-discussion, the d-discussion that we call daily is not the true face of the hard drive. A real hard drive can be divided into several logical partitions in the dos operating system, such as c-disk, d-disk, e-disk, etc., known as “logical hard drives”。
3. 4 [computer power and machine boxes]
Computers operate with no power source, but they cannot directly use the normal 220 voltage. In order to provide the required electrical power for the various components of the computer, the computer is equipped with transformers within the power supply, which converts 220 volts to low voltage, such as cpu, which is usually only a few volts. For security reasons, computer components (other than monitors) are usually placed in aircraft boxes. It is equipped with a variety of buttons and indicators to facilitate user handling and understanding of computer status. In addition, equipment such as soft and optical drives can be accessed directly through the front end of the case。
3. 5 [extension card and input device]
In order to meet various needs, such as viewing vcds, listening to music, computers may need extended cards such as sound cards. These extensions enhance computer functionality, such as sound cards, which allow the computer to sound, fax cards that give the computer a fax function, and webcards that enable users to access the network. The extended card is compatible with the extended slots on the main board to achieve functional expansion. As one of these, an extension card, although today the monitor has become the standard for computers, is still customarily classified as an extension card. Similarly, sound cards, fax cards, web cards, etc. Fall into this category. Next, we'll look at the pc input device -- keyboards and mouse. When the user clicks on the keyboard, the keyboard sends the key signal to the main panel and further transmits it to the cpu. The cpu determines the operation that the key will trigger, depending on the procedures in the operating system。
3. 6 [segregation of notebook from desktop]
First, in the appearance, the desktop is large and has a very heavy line, while the notebook is designed to be small and portable, showing the screen and the fuselage. Second, in terms of value for money, desktops usually perform better than notebooks at the same price, or notebooks with the same performance are more expensive. In addition, desktop performance is often better in hardware configuration. For example, the same is the i5 processor, which uses a four-nucleus 4 and a two-nucleus 4. The same type of graphic card, such as gt650, has twice as much desktop performance as the notebook. In addition, the mechanical hard drive of the desktop is usually at a higher rate of 7,200, while the notebook is 5400。
054. Configuration selection factors
Hardware configurations affect overall performance, including cpu, memory, masterboard, hard drive and graphic cards. Of these, the frequency and secondary cache capacity of the cpu are critical for response speed; the memory interface, the amount of particles and the size of storage determine access speed; the processing chip on the main plate affects data processing efficiency; the speed of the hard drive is related to power consumption and heat dispersion; and the graphic card has a direct impact on the speed of response for running large software such as cad2007, 3dstudio, etc. At the same time, attention needs to be paid to the role of special configurations, such as “shared visible” techniques, in enhancing the performance of graphic cards. In addition, the replacement of desktops is relatively simple and less expensive, as spare parts are placed on the main plate, while hardware upgrades are easy. The notebooks, on the other hand, are more difficult and costly to maintain and have limited room for upgrades, in particular for graphic cards, owing to the large number of hardware integrated on the main plate。
