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About 6,923 papers for “Central processing unit”

CENTRAL PROCESSING UNIT (CPU)

Ika Milia wahyunu Siregar · 2020

Perkembangan IT di dunia sangat pesat, mulai dari perkembangan sofware hingga hardware. Teknologi sekarang telah mendominasi sebagian besar di permukaan bumi ini. Karena semakin cepatnya perkembangan Teknologi, kita sebagai pengguna bisa ketinggalan informasi mengenai teknologi baru apabila kita tidak up to date dalam pengetahuan teknologi ini. Hal itu dapat membuat kita mudah tergiur dan tertipu dengan berbagai iklan teknologi tanpa memikirkan sisi negatifnya. Sebagai pengguna dari komputer, kita sebaiknya tahu seputar mengenai komponen-komponen komputer. Komputer adalah serangkaian mesin elektronik yang terdiri dari jutaan komponen yang dapat saling bekerja sama, serta membentuk sebuah sistem kerja yang rapi dan teliti. Sistem ini kemudian digunakan untuk dapat melaksanakan pekerjaan secara otomatis, berdasarkan instruksi (program) yang diberikan kepadanya. Istilah Hardware komputer atau perangkat keras komputer, merupakan benda yang secara fisik dapat dipegang, dipindahkan dan dilihat. Central Processing System/ Central Processing Unit (CPU) adalah salah satu jenis perangkat keras yang berfungsi sebagai tempat untuk pengolahan data atau juga dapat dikatakan sebagai otak dari segala aktivitas pengolahan seperti penghitungan, pengurutan, pencarian, penulisan, pembacaan dan sebagainya.

Cited by 2

CPU Central Processing Unit

Omar Cheikhrouhou A, Maryline Laurent B, Amin Ben Abdallah B et al. · 2010

Fax number: 01 60764711 Abstract: In the era of mobile and wireless networks, the growing complexity of end devices and the accentuated tendency towards miniaturization of them raise new security challenges. Authentication is a crucial concern in resource constrained environments, and despite the great number of existing EAP methods, as explained in the article, we are still in need for EAP methods tightly adapted to wireless environments and satisfying heterogeneity of terminals and their limitations of resources. After a first comparative analysis of existing EAP methods, this article presents a new EAP-EHash method (EHash for Encrypted-Hash) that is adapted to the highly vulnerable wireless environment by supporting mutual authentication, and session key derivation, and offering simplicity, rapidity and easy-to-deploy features. This EAP-EHash was formally proved to satisfy the claimed security properties, thanks to the AVISPA tool. Implementation of it on an 802.11 testbed platform gave realistic authentication delays averaging 26 milliseconds, and thus proved EAP-EHash is competitive to EAP-MD5 that is known to be the simplest of the EAP methods. Features of EAP-EHash include short execution delays and low bandwidth consumption,

Cited by 0

Central Processing Unit of Computer Device

National Cancer Institute · Definitions · 2020

T he part of a computer which controls all the other parts.Designs vary widely but, in general, the CPU consists of the control unit, the arithmetic and logic unit (ALU) and memory (registers, cache, RAM and ROM) as well as various temporary buffers and other logic.

Cited by 0Open access

Temperature of the Central Processing Unit

I. M. Lavrov · Undergraduate Journal of Mathematical Modeling One + Two · 2016

Heat is inevitably generated in the semiconductors during operation. Cooling in a computer, and in its main part – the Central Processing Unit (CPU), is crucial, allowing the proper functioning without overheating, malfunctioning, and damage. In order to estimate the temperature as a function of time, it is important to solve the differential equations describing the heat flow and to understand how it depends on the physical properties of the system. This project aims to answer these questions by considering a simplified model of the CPU + heat sink. A similarity with the electrical circuit and certain methods from electrical circuit analysis are discussed.

Cited by 3Open access

The Central Processing Unit in human DNA

Zhiyu Chen · OSF Preprints (OSF Preprints) · 2018

We have found that each human chromosome has an unique structure, which is about 1 percent of the length of the entire chromosome. We analyze the NCBI all other 117 kinds different creatures , we analyze their every chromosome sequence, in these other creatures 3500 chromosome sequences, there has not a chromosome which has the same unique structure as the human chromosomes , we think the unique structure only exists in human chromosomes and does not exist in other creatures chromosomes. We also find this structure position is very near the centromere in every human chromosome.In the unique structure, where the number of bases T is greater than A, and the number of bases G is greater than C, we believe that there is an unknown high energy structure in the unique structure, which is mainly composed of the bases T and G. Inside the unique structure, Tmin is more than Amax , and Gmin is more than Cmax , outside the unique structure, Tmin is less than Amax , and Gmin is less than Cmax , Inside the unique structure, %T is more than %A , and %G is more than %C , Chargaff's Second parity rule fails. Outside the unique structure, %A = %T and %G = %C , Chargaff's Second parity rule works. This unique structure is the most special region of human DNA, with a portion of each chromosome, and is where high-energy activity gathers, and we venture to speculate: This particular structure that we think is The Central Processing Unit in human DNA

Cited by 0Open access

CENTRAL PROCESSING UNIT-GRAPHICS PROCESSING UNIT COMPUTING SCHEME FOR MULTI-OBJECT TRACKING IN SURVEILLANCE

Ankush Rai, R. Jagadeesh Kannan · Asian Journal of Pharmaceutical and Clinical Research · 2017

This research work presents a novel central processing unit-graphics processing unit (CPU-GPU) computing scheme for multiple object trackingduring a surveillance operation. This facilitates nonlinear computational jobs to avail completion of computation in minimal processing time for tracking function. The work is divided into two essential objectives. First is to dynamically divide the processing operations into parallel units, and second is to reduce the communication between CPU-GPU processing units.

Cited by 0Open access

Micro-sequencer based control unit design for a central processing unit

Chang Hai Tan · 2007

Central Processing Unit (CPU) is a processing unit that controls the computer operations. The current in house CPU design was not complete therefore the purpose of this research was to enhance the current CPU design in such a way that it can handle hardware interrupt operation, stack operations and subroutine call. Register transfer logic (RTL) level design methodology namely top level RTL architecture, RTL control algorithm, data path unit design, RTL control sequence table, microsequencer control unit design, integration of control unit and data path unit, and the functional simulation for the design verification are included in this research.

Cited by 0

The Cilium: Cellular Antenna and Central Processing Unit

Jarema Malicki, Colin A. Johnson · Trends in Cell Biology · 2016

Cilia mediate an astonishing diversity of processes. Recent advances provide unexpected insights into the regulatory mechanisms of cilium formation, and reveal diverse regulatory inputs that are related to the cell cycle, cytoskeleton, proteostasis, and cilia-mediated signaling itself. Ciliogenesis and cilia maintenance are regulated by reciprocal antagonistic or synergistic influences, often acting in parallel to each other. By receiving parallel inputs, cilia appear to integrate multiple signals into specific outputs and may have functions similar to logic gates of digital systems. Some combinations of input signals appear to impose higher hierarchical control related to the cell cycle. An integrated view of these regulatory inputs will be necessary to understand ciliogenesis and its wider relevance to human biology.

Cited by 370Open access

Central processing unit, and the von Neumann bottleneck

Vinod Kumar Khanna · 2025

The central processing unit (CPU) is the computing workhorse of conventional digital computers. Basic units inside a CPU are its processing elements known as cores, the two controllers (the memory controller and input/output controller) and the cache along with input/output devices. The components of a core are the control unit, clock, arithmetic-logic unit (ALU), registers (program counter, memory address and memory data registers, current instruction register, and accumulator) and on-chip Level 1 cache along with data, control and address buses. Computer memory hierarchy comprises: Level 0: CPU registers; Level 1: cache memory (static random-access memory, SRAM); Level 2: cache memory (also SRAM); Level 3: primary memory (main memory): dynamic random-access memory (DRAM); Level 4: secondary memory (magnetic hard disk drive); and Level 5: tertiary memory (magnetic tapes or optical disks). Subcategories of computer architecture are: instruction set architecture, microarchitecture and system design. The universally adopted von Neumann architecture is based on the stored program concept involving a fetch-decode-execute cycle. The von Neumann bottleneck is encountered because memory access is slower than the computation speed. Two types of processors are designed, viz., the RISC (reduced instruction set computer) and CISC (complex instruction set computer) processors. A multicore CPU operates on the multiple instructions, multiple data (MIMD) architecture. Threading, multithreading and hyperthreading in a CPU are defined. The usage scenario of CPUs in artificial intelligence (AI) is discussed. Acceleration technologies in CPUs include Intel® advanced vector and matrix extensions. In the Harvard architecture competing with the von Neumann architecture, the storage and handling of data and instructions are explicitly isolated. The disadvantages of Harvard architecture are elucidated and reasons for the popularity of von Neumann architecture are explained.

Cited by 0