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IDE ports

There are also ports on the motherboard that can be accessed from inside the case. These are generally two IDE ports, a floppy drive port, and a SCSI port if integrated with the motherboard. Internal devices such as hard disk, CD drive, CD writer, floppy drive can be connected to the motherboard via flat cables inserted into these ports. Two devices can be connected to a cable connected to an IDE port via two connectors on it. Apart from these, there is a socket or Slot on the motherboard to install the processor. A socket is the name given to the slot in the form of a flat rectangle, in which the processor’s pins extending on two planes (transverse and longitudinal) sit.

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In today’s motherboards, PGA sockets for Celeron processors with 370 pins of pga370 type, super 7 sockets with AGP and 100 MHz system bus support for AMD K6-2 and K6-3 processors, Cyrix (for K6-2 and old Pentium MMX processors) 66 MHz Supporting Socket 7 type sockets are available. Slot is the name given to long thin rectangular processor sockets similar to expansion sockets.

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Cache: all hardware used in computers today is much faster than it was 15 years ago. But the speed of each hardware component did not increase equally. For example, the performance improvement in processors is many times greater than in hard disk.

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As they say, the power of a computer is as much as its weakest link. Even though the processor and memory are very fast, it is not possible to experience this performance increase with a hard disk that is slow. The processor sits idly by waiting for information to come to it. Of course, some intermediate solutions have been developed to prevent this. For example, transferring recently used information from the hard disk to a unit called cache made it possible for the processor to retrieve frequently used information from this cache area when needed. This is the essence of caching. A computer has several levels of memory: primary cache (L1 cache), secondary cache (L2 cache), system memory (ram), and hard disk or CD-rom.

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Let’s say the processor needs a piece of information. It goes first, looks at the L1 cache, which is the fastest type of memory. If the information is there, it receives and processes it without delay. If L1 is not in the cache, it looks to L2 and if the information is there, it retrieves the information with a relatively small delay. If it isn’t there, it’s the system memory that is slower than the cache, if it isn’t there, the slowest hard disk or CD-rom, etc. It looks at the devices from which the information comes. L1 cache is the fastest and is located directly on the processor in today’s computers.

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This cache is small (typically up to 64k. 32k on Pentium III, Pentium II and Celeron processors, 64k on AMD K6-2 and k6-3 processors). L2 cache can be a little slower but a little larger. Pentium II and IIIs are 512k in size and communicate with the processor at half the speed of the processor. It is absent from the early Celerons; today’s Celerons are 128k in size and communicate with the processor at the same speed. AMD K6-2s can have up to 2GB of L2 cache in a slot on the motherboard, not on the processor, and communicate at bus speed (66 or 100 MHz). AMD K6-3 has 256k cache and communicates with the processor at the same speed.

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Since AMD K6-3 has L1 and L2 caches and also has a cache running at system bus speed on the motherboards they are used, Level 3 (l3) cache has been introduced into the literature.There are also ports on the motherboard that can be accessed from inside the case. These are generally two IDE ports, a floppy drive port, and a SCSI port if integrated with the motherboard. Internal devices such as hard disk, CD drive, CD writer, floppy drive can be connected to the motherboard via flat cables inserted into these ports. Two devices can be connected to a cable connected to an IDE port via two connectors on it. Apart from these, there is a socket or Slot on the motherboard to install the processor. A socket is the name given to the slot in the form of a flat rectangle, in which the processor’s pins extending on two planes (transverse and longitudinal) sit.

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In today’s motherboards, PGA sockets for Celeron processors with 370 pins of pga370 type, super 7 sockets with AGP and 100 MHz system bus support for AMD K6-2 and K6-3 processors, Cyrix (for K6-2 and old Pentium MMX processors) 66 MHz Supporting Socket 7 type sockets are available. Slot is the name given to long thin rectangular processor sockets similar to expansion sockets.

Cache: all hardware used in computers today is much faster than it was 15 years ago. But the speed of each hardware component did not increase equally. For example, the performance improvement in processors is many times greater than in hard disk. As they say, the power of a computer is as much as its weakest link. Even though the processor and memory are very fast, it is not possible to experience this performance increase with a hard disk that is slow.