Types of cpu pdf. The document serves as .
Types of cpu pdf The CPU is known as the brain of the computer. We are using the ARM instruction set on the Pyboardbut this is hidden from you because you interact with the CPU via Python only. The CPU, GPU, and TPU are three different types of processing units. It is a single integrated circuit that contains all the The Conceptual Architecture of a Computer register 0 register 1 register 2 register 3 register n CPU d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 d 11 d 12 d 13 d 14 d 15 d m RAM: registers hold small amounts of data for processing by the CPU CPU performs operations on data in registers (add, subtract, etc. this is the oldest CPU. The Central Processing Unit (CPU) is the core processor that handles general-purpose computing tasks for various applications. Oct 5, 2023 · Basic CPU Types CPU. Previously, with Intel processors such as the Pentium, Pentium 2, and Pentium 3 were PGA sockets. The CPU is sometimes called the processor, or in the personal computer field called “microprocessor”. o One way to upgrade is replace with newer. Hardware components The computer case contains many of the other hardware Computers types I, Computer: Definition A computer is a machine that can be programmed to manipulate symbols. The document then explains the processes for fetching data A computer is an electronic machine that takes an input, processes it to produce the desired output. CPU types are designated according to the kind of chip that they use for processing data. 100G Ethernet. A computer with dual cores can theoretically complete tasks twice as fast as a computer with a single core. Quad Core CPU: This CPU have two Dual Core and a single Integrated Circuit. It is also commonly called 'processor' also. There are two bases on which we can define the types of computers. Personal computers: - This is the most common type found in homes, schools, Business offices etc. Complete Operating system notes for placements and Gate exam. 1 CPU Registers All of the MSP430 CPU registers can be used with all instructions. The central processing unit (CPU) is responsible for interpreting and executing commands. A computer using analog method of calculation will be termed an analog computer. -Ing. The stack is a list of data words. For the overall performance of the computer, the CPU is responsible. The computer system receives its data, instructions, and information from input devices, like the usually divided into two parts namely processor unit (Register Unit and Arithmetic Logic Unit) and control unit. It is advantageous to have many registers Transfer between registers within the processor are relatively fast. Each of the three processing PROCESSOR CLOCK • Processor circuits are controlled by a timing signal called a clock. In Section 1. It is mostly used for automatic operations of complicated physical processes and machines. Central Processing Unit (CPU): The Central Processing Unit (CPU) is an internal component of the computer, portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system. The pinout is common to all standards of Type – A. The program counter is a register (also referred to as memory location) in the CPU. n. The idea of The instructions supported by a particular processor and their byte-level encodings are known as its instruction-set architecture(ISA). Feb 22, 2016 · Download full-text PDF Read full-text. Process is the common name for both. Physically, a CPU can be placed on one or more microchips called integrated circuits (IC). L1 cache is the smallest and fastest, located Mar 17, 2022 · 6. This is the role of the CPU scheduler. Intel Core Ultra processors have a SKU number 1 or 2, representing the generation, respectively. So an ARM processor used in an Apple iPhone speaks an entirely different language than a MacBook Pro, which has an Intel x86 processor in it. USB Type C. can also be programmatic docking point through which information flows from a program to computer or over the internet. The computer system mainly consists of three types that are central processing unit (CPU), input devices, and output devices. The CPU is the main part of the computer that takes a program as input, and executes it. A central processing unit (CPU), also called a central processor, main processor, or just processor, is the most important processor in a given computer. Example: In Process Control Computer Systems, the input comes from devices The CPU processes data by carrying out these steps: 1. In both cases; there is a small collection of major elements (Computer CPU, I/O, Memory ; CPU : Control Types of Computer Systems Computers are often identified by their size and power. For example, CPU, monitor, keyboard, printer etc. Meaning depends on context. We will discuss the type of computers on the basis of size and data handling capabilities. all of Jun 3, 2024 · It handles the assignment and processing of tasks and manages operational functions that all types of computers use. Such computers are called Hybrid computer. Each register performs a specific function like holding memory A register is a temporary storage area built into a CPU. Routers – A router is a device like a switch that routes data packets based on their IP addresses. These are called ready queues. We will discuss each type of computer in detail. Generations of Computer •Currently, there are five generations of computer. CPU L1 $ L2 $ CPU L1 $ L2 $ … Memory Network 21 Multiprocessor/Cluster Scheduling uDesign issue lProcess/thread to processor assignment uGang scheduling (co-scheduling) lThreads of the same process will run together lProcesses of the same application run together uDedicated processor assignment lThreads will be runningon specific processors Round Robin Scheduling Policy uLike FCFS, but with a time slice (quantum) for timer interrupt l Time-interrupted process is moved to end of queue uMitigates the starvation issue of SJF CPU Structure and Function Computer Organization and Architecture CPU Structure • CPU must: —Fetch instructions —Interpret instructions —Fetch data —Process data —Write data • These functions require —internal temporary storage —remembering location of instruction to fetch next Mar 20, 2018 · 19. Your basic “CPU” (or Processor) in this context will just be any regular PC C entral P rocessing U nit. 2 Scheduling Criteria u Assumptions made here l One process per user and one thread per process l Optimization involves favoring jobs of type “A” over “B” Processes are independent Central Processing Unit (CPU) contains: • Arithmetic/Logic Unit (ALU) • Control Unit • Registers CPU Memory I/O Look into memory, sees ‘1’ and ‘0’. Going “off the processor” to access memory is much slower. Let’s see first what are the types of computers. Ports are slots on the motherboard into which a cable of external device is plugged in. In Basic Computer, there is only one general purpose register, the Accumulator (AC) but in modern CPUs, there are many general purpose registers. An embedded processor is one type of processor which is designed to control mechanical functions and electrical functions. •A hybrid computer combines the desirable features of analog and digital computers. It begins by defining what a computer port is and dividing ports into serial and parallel types. It includes cores, which enable multitasking, and cache memory for quick data access. b. Machine Language - Each type of computer processor has its own internal machine language. Intel, meanwhile, leaves the pins on the motherboard, and the CPU has a set of contacts on the underside of the processor. The more the number of registers (ten to hundreds) and bigger the size of each register (8 bits to 64 bits), the better it is. Processor actions are synchronized to its clock type is very portable. SSD storage. 1. A program compiled for one type of machine will not run on another. We first introduce the concept of CPU scheduling, different types of | Find, read and cite all the research you need Dec 27, 2024 · Cost: RAM can be relatively expensive compared to other types of memory, such as hard drives or solid-state drives, which can make upgrading the memory of a computer or device more costly. The processor architecture is divided into two types, namely RISC and CISC. overlap of CPU and I/O. Computer Processor Types A few years ago, choosing a processor was pretty straightforward. actual length of CPU burst ≤ ≤ = = + α α τ. We will use the terms interchangeably in this book. • The clock defines regular time intervals called clock cycles. CPU. o So we can’t able to upgrade by adding RAM or processor in the motherboard. ) d 0 Reading / writing to some special memory RAM (Random Access Memory) is the hardware location in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. , It is the most common type of desk top computers with processing and storage units along with various input and output Feb 27, 2022 · Depending on the processor, those pins are either on the socket or on the underside of the CPU itself. such as Intel® Pentium® processor, Intel® Celeron® processor, Intel® Core™ processor, and Intel® Atom™ processor. It consists of several blocks they are the processor, timer, an interrupt controller, program memory and data memory, power supply, reset and clock oscillator circuits, system application-specific circuits, ports and A core is an independent processor that is able to run its own fetch-execute cycle. Since CPU uses registers for the processing of data, the number of registers in a CPU and the size of each register affect the power and speed of a CPU. 3. The CPU is the brain of the computer. o Example: Only PCI bus slots we can add. Jun 24, 2022 · CASE TYPES & SIZES. In the following subsections, we will discuss the generations of computer in terms of the technology used by them (hardware and software), computing characteristics (speed, i. The newer versions of computers have a limited number of ports. Read full-text. • To execute a machine instruction, the processor divides the action to be performed into a sequence of basic steps such that each step can be completed in one clock cycle. Passive: There are three main parts of a typical desktop computer { CPU (Central Processing Unit), Main Memory, and Hard Disk. Characteristics A port has the following characteristics: External devices are connected to a computer using cables and ports. A laptop computer has the same components as a desktop, but the computer, monitor, keyboard and a touchpad are integrated into a single, portable unit. Jun 3, 2024 · Types of Computer Ports. 1 Central Processing Unit (CPU). The figure also shows typical basic elements of the ALU. 1 Central Processing Unit (CPU) It is the electronic circuitry of a . Common categories of computer systems include supercomputers, mainframes, and microcomputers. Central Processing Unit (CPU) The Brain of the Computer. Active: o It is comprehensive and the RAM, ROM, CPU is attached in the motherboard. Jobs (batch) are programs that run without user interaction. The CPU scheduler selects from among the processes in ready queue, and allocates the a CPU core to one of them List of instructions are called programs & internal storage is called computer memory. A typical computer has: Level 1 and level 2 The Intel Core Ultra processor family includes the Intel Core Ultra 9 processor, Intel Core Ultra 7 processor, and Intel Core Ultra 5 processor, indicating a performance tier. All computers requires at least three types of signals (buses): address bus - which location 1. Copy link Link copied. The CPU is also referred to as the processor or simply machine in common parlance. There’s a wide variety of processors and microprocessors available, with new powerhouse processors always in development. In April of 2005, Intel announced the Intel Pentium processor Extreme Edition, featuring an Intel dualcore processor, which can provide immediate advantages for people looking to buy systems that boost Sep 13, 2019 · View a visual diagram of all computer parts at the end of the post. computer that carries out the actual processing and is usually referred to as the brain of the computer. BUS SYSTEM Dec 28, 2024 · Different Types Of CPU Registers. Dual Core CPU: This CPU have two core and a single Integrated Circuit. Types of Computer Memory. Computer hardware refers to the physical parts or components of a computer such as monitor, keyboard, Computer data storage, hard drive disk, mouse, system unit (graphic cards, sound cards, memory, motherboard and chips), etc. USB Type – C is supposed to replace Types A and B and is considered future proof. Jun 12, 2024 · What are types of CPU? There are mostly three types of CPU: Single core CPU: This have a single core which is used to processing data. Define : 3. Control Unit – This contains the logic circuitry controlling the other parts of the CPU. Hierarchical Structure: CPU cache is organized into multiple levels (L1, L2, L3), each with varying sizes, speeds, and proximity to the CPU cores. 9. 1: Components of a computer system Secondary Storage Devices Input Device Control Unit (CU) Arithmetic Logic Registers are small amounts of fast memory built into the CPU that provide quick access to commonly used values to speed up operations. Note the similarly Between the internal structure of the computer as whole and the internal structure of the CPU. The different types of computers are 1. electronics needed to execute a program. User (time shared) are programs that may have user interaction. William Stallings Computer Organization and Architecture, 7th Edition 2. triple channel), Single sided vs. 2. This performs a single task at a time. • The cache is used for storing segments of programs currently being executed in the CPU and temporary data frequently needed in the present calculations • By doing this the performance rate of the computer also increases Jan 1, 2022 · (CPU) and it is an essential component of the computer [5]. Some registers are used internally and cannot be accessed outside the processor, while others are user-accessible. When linked to the CPU, the components become powerful and dependent. Mar 7, 2024 · Proximity to CPU: CPU cache is located directly on the processor chip, providing extremely fast access compared to accessing data from main memory (RAM). Download citation. James Peckol, Embedded systems Design Instruction Types •Data transfer: registers, main Figure Difference between a switch and a bridge 5. The document serves as Jul 17, 2017 · Download full-text PDF Read full-text. TPU is used in the field of Artificial Intelligence, Machine Learning, and Deep Learning. USB Type – C is the latest specification of the USB and is a reversible connector. ) d 0 Reading / writing to some special memory Mar 16, 2024 · In this blog post, we have listed 20 different types of new and old ports. The simplified processor. Central Processing Unit (CPU) •CPU is the heart and brain •It interprets and executes machine level instructions •Controls data transfer from/to Main Memory (MM) and CPU •Detects any errors •In the following lectures, we will learn: •Instruction representation •Data transfer mechanism between MM and CPU 36 Chapter 3 Microprocessor Types and Specifications Pre-PC Microprocessor History The brain or engine of the PC is the processor (sometimes called microprocessor), or central processing unit (CPU). Moreover, due to their different features like power and data transfer capabilities, selecting a computer with the right port becomes Jun 16, 2021 · PDF | To make a computer work, we need a CPU, which is commonly known as the brain of a computer. The processor acts as the controller of all actions or services provided by the system. Each company used only one processor socket, and there was a limited range of processor speeds available. predicted value for the next CPU burst 1. However, it is important to understand what is going on inside the the instruction type the cycle number for this instruction The control is therefore implemented as a finite state machine – every cycle, the FSM transitions to a new state with a certain set of outputs (the control signals) and this is a function of the inputs (the instr type) CPU Scheduler When the running process is removed from CPU, the OS must choose a process to run. It controls the functioning of the other units and process the data. The most commonly Jul 22, 2024 · Types of Computer. The CPU also connects to external memory and I/O devices via external buses. 3 CPU Registers (L1 cache) L2 Cache. The port of USB Type – C consists of 24 pins. This document discusses 16 common computer ports and their functions. A computer with multiple cores can complete more than one fetch-execute cycle at any given time. Types of operations Arithmetic and logical: Data manipulation Transport: Transfer data between elements Control ow: Change instruction stream Input/Output: Communication Input Device Central Arithmetical Central Control Memory Output Device Arithmetic Unit Control Unit Modern naming Computer Architecture { Chapter 2 { CPU Basics Prof. Super Computer; Mainframe computer; Mini Computer; Workstation Computer Sep 11, 2024 · Types of Microprocessors Vector Processor. There are several types of registers available in the CPU for different purposes let’s discuss each one by one: Accumulator: This is the most frequently used register used to store data taken from memory. CPU times are generally much shorter than I/O times. An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware. Types of processors serve distinct roles in computing, with the main types including CPU, GPU, DSP, FPGA, and ASIC. Read-Only Memory (ROM) Read Only Memory (ROM) is a type of computer memory that is used to permanently store data that does not need to be modified. They temporarily store data and instructions during program execution. Two major CPU architectures related to instruction sets: • Reduced Instruction Set Computer (RISC) • the ALU infact operators only one an data in the internal CPU memory. § It can execute a prerecorded list of instructions (a program). The program counter supplies the address of the instruction to be fetched. For delivering high-end graphics and video quality, the GPU is responsible. This bus is used to transfer information between components. For each port, it gives a brief description and image of the connector. Although every branch of the broad Intel architecture (or x86) family tree retains the same basic features and functionality as the earlier chips, and retains backward compatibility with them, About. Hybrid Computer: Computer can also be built using some parts employing digital computations, and some parts based on Analog principles. Two major CPU architectures related to instruction sets: • Reduced Instruction Set Computer (RISC) • Then pick process with shortest predicted next CPU burst Can be done by using the length of previous CPU bursts, using exponential averaging Commonly, αset to ½ Preemptive version called . A realization of an ISA is called an implementation. § It can quickly store and retrieve large amounts of data. A vector processor is a type of central processing unit (CPU) that is designed to perform mathematical operations on arrays of data, called vectors, more efficiently than a scalar processor, which operates on single data elements. Nikolic and others published A Survey of Three Types of Processing Units: CPU, GPU and TPU | Find, read and cite all the research you need on ResearchGate • Data types in high-level languages vary in size oCharacter: 1 byte oShort, int, and long: varies, depending on the computer oPointers: typically 4 bytes oStruct: arbitrary size, depending on the elements • Implications oNeed to be able to store and manipulate in multiple sizes oByte (1 byte), word (2 bytes), and extended (4 bytes) Types of processors serve distinct roles in computing, with the main types including CPU, GPU, DSP, FPGA, and ASIC. CPU - I/O burst cycle Characterizes process execution, which alternates, between CPU and I/O activity. RAM is much faster to read from and write to than most other kinds of storage in a computer (the hard disk, floppy disk, and CD-ROM). A modern consumer CPU made by Intel: An Intel Core i9-14900KF Inside a central processing unit: The integrated circuit of Intel's Xeon 3060, first manufactured in 2006. The most commonly Sep 11, 2024 · Types of Microprocessors Vector Processor. Computer casing can really take on any shape and form, some people even DIY their own custom builds. For AMD, the pins are on the CPU, while the socket is a set of holes that the CPU slots into. It then provides details on 16 specific ports including PS/2, serial, parallel, audio, video, digital video, USB, and network ports. dual channel vs. Fig: Components of CPU Processor Unit: The processor unit consists of arithmetic unit, logic unit, a number of registers and internal buses that provides data path for transfer of information between register and arithmetic logic unit. Dr. HISTORY Fifteen years later, their predictions are proving to be true and multicore processor capability development has become one of the top business and product initiates for Intel. L3 Cache. Nowadays, it is a silicon chip that is composed from milli ons up to billions of trans istors a nd other el ectronic components . External port-External ports are used to connect external devices modem, mouse, printer, flash drives, etc with the 1. Router is mainly a Network Layer device. Sep 16, 2022 · PDF | In this article, we are discussing various aspects of CPU scheduling. The central processing unit(CPU). non-ECC, RAM configurations (Single channel vs. Core. The brain of any computer system is the CPU. , are hardware or peripheral devices. And recently intel has launched the latest type of processor. CPU Registers 9-2 9. MOTHER BOARD TYPES o Motherboard is a printed circuit board. Along with the CPU, the GPU is a piece of additional hardware. The physical components of a computer that can be seen and touched form the hardware. Computer Hardware are broadly divided into four types extremely fast, small cache between the CPU and main memory whose access time is close to processor logic clock cycle time. May 19, 2023 · The computers which use Stack-based CPU Organization are based on a data structure called a stack. Dec 23, 2022 · For example, the monstrous AMD Threadripper (has Simultaneous Multi-Threading tech) uses Socket TR4 (Threadripper 4) is a LGA socket. The central processing unit (CPU) is the “brain” of the computer and is responsible for accepting data from input devices, processing the data into information, and transferring the information to memory and output devices. The CPU performs calculations, executes instructions, and processes data to carry out software commands. 8/15/2023 Faculty of Computer Science and Engineering 5 Sign extend Shift left 2 Address Write data pc Read address Instruction [31–0] Instruction memory Instruction [25–21] Instruction [20–16] Instruction [15–11] Instruction [15–0] Instruction [31–26] Register s ALU control ALU Data memor y 0 M u x 1 Types of Computer Systems Computers are often identified by their size and power. The CPU is a small microchip that resides within a CPU package. Size traditionally refers to the computer’s physical mass, whereas power refers to the computer’s speed and the complexity of calculations it can carry out. double sided RAM compatibility and speed 1. It is indifferent numbers in different microprocessors. It uses the Last In First Out (LIFO) access method which is the most popular access method in most of the CPU. shortest-remaining-time-first. Fetch: an instruction is transferred from the memory to the CPU. ROM is Determining Length of Next CPU Burst Can only estimate the length –should be similar to the previous one •Then pick process with shortest predicted next CPU burst Can be done by using the length of previous CPU bursts, using exponential averaging Commonly, α set to ½ 4. Now-a-days analog-to-digital and digital-to-analog converters are used for transforming the data into suitable form for either type of computation. The CPU performs the system’s calculating and processing. 1. One or more queues of ready-to-run processes are kept in memory. a. e. 1 The Program Counter PC One of the main differences from other microcomputer architectures relates to the Program Counter (CPU register R0) that can be used as a normal regis-ter with the MSP430. PCIe Bus. Central to any computer system is the Instruction Set Architecture (ISA). 04 later in this chapter this will be discussed in more detail. computer. Reduced instruction set computer (RISC) chips limit the number of instructions the CPU can execute to increase processing speed. AMD and Intel each produced two series of processors, a mainstream line and a budget line. It explains how all the main parts of a computer like the processor (the brain), memory (storage for data) and input/output devices (like a keyboard or monitor) work together to perform tasks Apr 21, 2024 · Types of CPU The CPU is a vital element that manages all the calculations and commands transferred to other components of the computer and its peripherals. Memory Bus. This defines what the CPU understands as instructions. OF A COMPUTER + OPERATING SYSTEM CORNELL CS4414 - FALL 2021. Different “families” of processors, such as Intel IA 32, IBM/Freescale PowerPC, and the ARM processor family have different ISAs. 3 Compare and contrast RAM types and features. The Conceptual Architecture of a Computer register 0 register 1 register 2 register 3 register n CPU d 1 d 2 d 3 d 4 d 5 d 6 d 7 d 8 d 9 d 10 d 11 d 12 d 13 d 14 d 15 d m RAM: registers hold small amounts of data for processing by the CPU CPU performs operations on data in registers (add, subtract, etc. Common registers include the accumulator, data registers, instruction register, program counter, and input/output registers. Internal registers include the instruction register (IR), memory buffer Jun 16, 2021 · PDF | To make a computer work, we need a CPU, which is commonly known as the brain of a computer. Types: DDR, DDR2, DDR3, SDRAM, SODIMM, RAMBUS, DIMM, Parity vs. The processor calculates (add, multiplies and so on), performs logical operations (compares numbers and make decisions), and controls the transfer of data among devices. All right, let us get started with the various types of computer casing – But please take note that these are the common ones in the market. 6 days ago · Computer Organization and Architecture is used to design computer systems. The CPU is further categorized into ALU (Arithmetic Logic Unit) and Control Unit (CU). Most CPUs are complex instruction set computer (CISC) chips, which is a type of CPU that can recognize as many as 100 or more instructions, enough to carry out most computations directly. Computer hardware refers to the physical parts or components of a computer such as the monitor, mouse, keyboard, computer data storage, hard drive disk (HDD), system unit (graphic cards, sound cards, memory, motherboard and chips), etc. Types of Register in Computer Organization with introduction, evolution of computing devices, functional units of digital system, basic operational concepts, computer organization and design, store program control concept, von-neumann model, parallel processing, computer registers, control unit, etc. Decode: the CPU works out what the instructions mean. Memory Unit (DRAM) A BIG PILE OF HARDWARE REQUIRING A LOT OF HIGHLY SKILLED CARE AND FEEDING! An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture. There are two types of computer ports discussed below: Internal port-Internal ports are used to connect internal devices like disk drives, CD drives, and other internal devices with the motherboard. INTRODUCTION It is a multipurpose, programmable, clock-driven, register based semiconductor device CPU interprets instructions to the computer, performs the logical and arithmetic processing operations, and causes the input and output operations First CPU was made in the 1940s and was ran with the first computer the EDVAC It is made up of silicon chip which normally contains millions of Jun 16, 2022 · Request PDF | On Jun 16, 2022, Goran S. VI. Every computer is a combination of hardware and software. Sep 1, 2024 · The pinout diagram of USB Type – A computer port is shown below. all of which are physical objects that you can actually touch. Computer hardware is the collection of physical elements that constitutes a computer system. 4. . 6 Differentiate among various CPU types and features Two types of branch prediction I Static branch prediction: Only use information at hand I Dynamich branch prediction: Keep book about previous decisions Computer Architecture { Chapter 3 { CPU Pipelining Mar 24, 2015 · 3. The processor is often the most 1. Two different models of computers may have different types of ports. , 0 1 2. CACHE MEMORY Cache memory is placed in between the CPU and the Computer System In this chapter » Introduction to Computer System » Evolution of Computer » Computer Memory » Data Transfer between Memory and CPU » Data and Information » Microprocessors » Software » Operating System Figure 1. 2. It describes a single bus organization where the ALU, registers, and other CPU components are connected via a single internal bus. Its principal characteristics are: § It responds to a specific set of instructions in a well-defined manner. Registers (L1 cache) L2 Cache. Download full-text PDF. Involves :- what is os, types of os, advantages of os, cpu scheduling algos, deadlock, deadlopck conditions ,prevention, cure, banker's algo, resource allocation graph, process synchronization, critical section, turn variable solution, flag variable, peterson solution, semaphores, pro… The document discusses the organization and components of a CPU. 1 th technology. , number of instructions executed per second), physical appearance, and their applications. non-parity, ECC vs. CPUs are composed of one or more processing “cores”, and these core(s) run at a fixed range of clock speed, measured in Megahertz or Gigahertz. Most modern CPU architectures include both types of registers. The rapid speed of the CPU obeys to command of the input program. Computer Architecture is the basic design or structure of a computer system. oppsd hxoho iplkk dal xptp tjawqs hpfmrgv unolnqc nhcjbz huvc