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Each NuBus device contained its own independent 68000 processor, working space ... Since more than one processor/device can be connected to the same bus, some ...
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Interfacing Processors and Peripherals I/O Design affected by many factors ... Keyboard. input. human. 0.01 Mouse. input. human. 0.02 Voice input. input. human. 0.02 ...
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Input / Output Prof. Sirer CS 316 Cornell University Challenge How do we interface to other devices Keyboard Mouse Disk Network Printer Communication Interface ...
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processor-memory (short high speed, custom design) ... analysis, i.e., find the weakest link (see 'I/O System Design') Many new developments ...
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difficulties in assessing and designing I/O systems have often relegated I/O to ... the DMA controller completes the operation without bothering the processor ...
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... of the use of computers in music. It components: ... Storage Stage - where devices like floppy diskettes, hard disks, and CD-ROMs saves your data. ...
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It is not clocked. It can accommodate a wide rage of devices. It can be lengthened without worrying about clock shew. It requires a handshaking ... Not clocked ...
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IT Architecture Forum. 7 November 2006. Mark H. Anbinder. mha1@cornell.edu ... Camp 'public beta' made it easy partition, install, and run Windows or Mac OS ...
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two clock cycles needed between ... 1 clock cycle to send address to memory. 40 cycles to read first 4 ... Assume the number of clock cycles for a polling ...
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SABIRNICE to su sabirnice? -Sabirnica (eng.bus) je podskup unutar ra unala ili neke druge elektroni ke opreme koja kroz jedan dogovoreni standard omogu ava ...
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Title: PowerPoint Presentation Author: HMZ Last modified by: First Last Created Date: 3/6/2005 6:28:07 PM Document presentation format: On-screen Show
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The I/O subsystem provides the mechanism for communication between the CPU and the outside world (I/O devices). Design factors: I/O device characteristics (input ...
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Miss penalty 40 cycles for all misses ... huge miss penalty, thus pages should be fairly large (e.g., 4KB) ... Incredible high penalty for a page fault ...
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... today (check the web), due June 4 (last day of classes) CS 141 Chien May 24, 1999 ... Polling involves reading the control registers of the I/O devices in turn ...
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Review development and history of UNIX and Linux. ... notion of the 'core' Linux kernel. Understand the Linux approach to hardware (architecture) abstraction ...
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Local Area Network Hardware LAN Technology Architecture Network Interface Cards Wiring Center LAN Switches Media LAN Technology Architecture Shared-media LAN Switched ...
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ppc, s390, sh, sparc, sparc64. CS591 (Spring 2001) linux/drivers ... Saving registers on kernel mode stack. Invoking syscall service routine. ...
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Cosc 3P92 Week 3 Lecture s An intelligence test sometimes shows a man how smart he would have been not to have taken it. Laurence J. Peter US educator & writer ...
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Interfacing Processors and Peripherals Adopted from the lecture notes of Andreas Klappenecker and Rabi Mahapatra & Hank Walker Collection of I/O Devices Communication ...
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RAID 3. Sum computed across recovery group to protect against hard disk failures, stored ... Parity Data Bandwidth Array (RAID 3) Parity computed horizontally ...
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Busses and Networking (1) Prof. Jan Rabaey Computer Science 252, Spring 2000 Based on s from Dave Patterson, John Kubiatowicz Bill Dally, and Sonics, Inc
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Beyond the Five Classic Components of a Computer Network Processor Processor Input Input Memory Memory Control Control Output Output Datapath Datapath Peripheral Devices
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No es posible pensar un sistema real sin E/S. Influye (y mucho! ... Dispositivos de E/S (Disco magn tico, teclado, mouse, ... Vantajas: barato, simple, vers til. ...
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A bus master must signal to the arbiter after finish using the bus ... arbiter can disconnect by deasserting GNT. Delayed (pended, split-phase) transactions ...
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optimistically. 10 MIP processor. completely. saturates the bus! CS621 ?????????????????????? ... Wide variety of peripherals. Delivering different amounts of ...
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Use of half- or full-duplex communications? ... Either converts a signal for long-distance communications or creates multiple channels ...
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Platter. Purpose: Long-term, nonvolatile storage ... fixed rotating platters with gaps (random access, limited area, 1 media / reader) vs. ...
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can have more than one platter. 8/22/09. ch08 - Interfacing Processors and Peripherals ... 1-15 platters. recordable on both sides. 3600-7200 rpm. dia: 1-8' ...
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In Avalon, multiple masters can be active at the same time and can ... Consider the multi-master system and two bus masters (M0 and M1) use message ...
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Typically, event ordering, event timing separation and data setup/hold time are checked. ... tAB:data setup. tBC: data hold. invalid. cause and effect. Embedded ...
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'The difficulties in assessing and designing I/O systems have ... Impossible to return to initial exception location, since EPC will be overwritten ...
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Processor-Memory Bus (design specific) ... Processor to memory communication. Communication between I/O ... tap into the processor-memory bus via bus ...
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ALEXIS Block Diagram. Single 80C86 (commercial, plastic) Clocked at 4 MHz. A and B sides ... Tx / Rx. Payload interface via dual port RAM. Easy to simulate ...
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to collect data for each bunch at a time. (One image system ... beam did not work in a beam study. Need to compare to Flying Wires. (Both SL and FW aim ...
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Bus Arbitration and How to Design a Bus Arbiter (15 minutes) ... A bus master must signal to the arbiter after finish using the bus ...
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Ctrl: 2 ms (big variation) Disk Latency = Queuing Time (12 4.2 1 2)ms = QT 19.2ms ... r average number of arriving customers/second ...
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Bus arbitration decides which device (bus master) gets the ... multiple devices may request (arbitrate for) the bus; fixed priority by address ...
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Invented for IBM Field Engineers. Contact. Slow speed. 17. The College of Computing ... This iPod mini... A 4 GB disk in a 2' x 3.6' x 0.5' space... 33. The ...
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Bandwidth improving, but not as fast as CPU. Latency improving very slowly ... Expensive (not very good for archives and such) Flash memory ...
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Disk Latency = Queuing Time (12 4.2 1 2)ms = QT 19.2ms. Average Service Time = 19.2 ms ... Contents reconstructed from data redundantly stored in the ...
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Bus Master: has ability to control the bus, initiates transaction ... A bus master wanting to use the bus asserts the bus request ...
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... a clock in the control lines. A fixed protocol for communication that is relative to the clock ... It is not clocked. It can accommodate a wide range of devices ...
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connection between devices and the system. the memory hierarchy. the operating system ... I/O rate mais conhecido: TPC-B : simula rede de ATMs ...
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Simplex versus duplex. bandwidth and Signal/Noise Ratio. Synchronous versus asynchronous ... Is the maximum rate at which data can be transmitted over a given channel ...
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... used for decoding commands from the processor such as read, write, scan, address ... See diagram in class first and example next. 1. The CPU. periodically ...
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Disks, tapes, CD ROM, DVD. Communication. Networks. Human Interface. Video, audio, keyboards ... Steady shrink in form factor: 27 in. to 14 in. 1970s developments ...
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We will look at how devices (especially disks) are put together. ... Example: Barracuda Cheetah ST320822A. 200 Gigabytes. 7,200 RPM. 8.5 ms avg seek time. ...
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IBM System 38 (AS400) implements 64-bit addresses. 48 bits translated ... Constant bit density: record more sectors on the outer tracks ...
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(Lectures based on the work of Jay Brockman, Sharon Hu, Randy Katz, ... accelerates disk downsizing: 8 inch to 5.25 inch. Mass market disk drives become a reality ...
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computers in phones, books, cars, video cameras, ... Companies buy and sell capacity from each other. IBM. Utility-based Infrastructure ...
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Invented for IBM Field Engineers. Contact. Slow speed. 12. The College of Computing ... This iPod mini... A 4 GB disk in a 2' x 3.6' x 0.5' space... 28. The ...
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Seagate Barracuda: 7200 RPM (Disks these days are 3600, 4800, 5400, 7200 up to 10800 RPM) ... Desktop: Seagate 250GB, 7200RPM, SATA II, 9-11ms seek. Buffer to ...
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Data lines include address and raw data ... Only asynchronous stuff is generation of commands or requests ... Having a single bus master could create a bottle neck ...
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... on a rotating platter coated with a ... Platters are more rigid ( metal or glass) ... Platter. Disk I/O Performance. Disk Access Time = Seek time Rotational ...
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