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BÀI 4: VI XỬ LÝ CPU
Bài học tham khảo môn Phần cứng máy tính. Mục tiêu bài học: Hiểu biết cấu tạo và nguyên lý hoạt động của vi xử lý; Giải thích các thông số kỹ thuật và công nghệ của vi xử lý; Phương pháp lắp đặt và giải pháp nâng cấp vi xử lý; Chẩn đoán và xử lý các lỗi của vi xử lý
8/29/2018 5:32:00 PM +00:00
BÀI 5: BỘ NHỚ CHÍNH
Bài học tham khảo môn Phần cứng máy tính. Mục tiêu bài học: Hiểu biết cấu tạo cơ bản của bộ nhớ; Giải thích các kiểu bộ nhớ; Thông số kỹ thuật, công nghệ của ROM và RAM; Phương pháp lắp đặt RAM; Chẩn đoán và xử lý lỗi
8/29/2018 5:32:00 PM +00:00
BÀI 6: THIẾT BỊ LƯU TRỮ
Bài học tham khảo môn Phần cứng máy tính. Mục tiêu bài học: Nhận diện, phân biệt thiết bị lưu trữ; Hiểu biết cấu tạo và nguyên lý hoạt động của ổ đĩa cứng; Giải thích các chuẩn giao tiếp và thông số kỹ thuật; Phương pháp lắp đặt HDD, CDDVD Drive; Chẩn đoán và xử lý các lỗi thường gặp
8/29/2018 5:32:00 PM +00:00
Phần cứng máy tính - Bài 8: Lựa chọn cấu hình và lắp ráp máy tính
Bài học tham khảo môn Phần cứng máy tính. Mục tiêu bài học: Xác định nhu cầu và mục đích sử dụng của khách hàng ; Hiểu biết quy trình lắp ráp ; Nắm vững những kỹ thuật thao tác an toàn
8/29/2018 5:32:00 PM +00:00
THIẾT LẬP CẤU HÌNH BIOS
Dual BIOS là gì ? Dual BIOS thực chất là một công nghệ cho phép mainboard của bạn được tích hợp hai chip BIOS. Một loại được gọi là Main BIOS (BIOS chính) và một loại được gọi là Backup BIOS (BIOS dự phòng). Xử lý các thông báo lỗi thường xuất hiện ngay sau tiến trình POST có liên quan đến các thông số vừa thiết lập hoặc do các nguyên nhân khác có liên quan đến BIOS.
8/29/2018 5:32:00 PM +00:00
BÀI 10: CÀI ĐẶT OS & APPLICATION
Bài học tham khảo môn Phần cứng máy tính. Mục tiêu bài học: Giải thích các cách phân vùng ổ đĩa cứng (HDD); Hiểu biết cấu trúc hệ thống tập tin FAT32 và NTFS; Hiểu biết Hệ điều hành Windows, Linux; Giải pháp cài đặt nhiều hệ điều hành; Giải thích quá trình Boot OS; Sao lưu, phục hồi hệ thống; Nhân bản OS; Nhận diện và xử lý lỗi trong quá trình cài đặt
8/29/2018 5:32:00 PM +00:00
Một số cách khắc phục sự cố máy tính.
Thành phần cấu tạo của một số phần cứng máy tính. Khi bạn đã hiểu về các phần đó bạn sẽ dễ dàng khắc phục được một số lỗi căn bản.
8/29/2018 5:31:59 PM +00:00
BÀI TẬP LỚN MẠNG MÁY TÍNH (TRUYỀN THÔNG NỐI TIẾP)
ĐIỀU KHIỂN CÁC THIẾT BỊ SỐ DÙNG CỔNG COM: Mô tả kỹ thuật số công nghệ điện tử mà tạo ra, cửa hàng, và các quá trình dữ liệu về hai quốc gia: tích cực và không tích cực. Positive is expressed or represented by the number 1 and non-positive by the number 0. Tích cực được thể hiện hoặc đại diện bởi số 1 và không tích cực cho số 0.
8/29/2018 5:31:58 PM +00:00
INSTALLATION GUIDE
This document provides the information needed to design a TrueNet Certified Cabling System. The Design Guidelines are intended for use by designers with a working knowledge of structured cabling systems design. The Design Guidelines are part of a series of documents supporting the design, installation, and use of a TrueNet Certified Cabling System. KRONE reserves the right, without notice, to change its products as progress in engineering or manufacturing methods or other circumstances may warrant....
8/29/2018 5:31:55 PM +00:00
TrueNet
Tham khảo tài liệu 'truenet', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
8/29/2018 5:31:55 PM +00:00
Digital River
The Digital Building Telecommunications Access Guideline Foreword Scope and Purpose Digital River The Process More information and comments Principle 1: Spatial Access and Design 1.1 Introduction 1.2 Communications Network Architectures 1.3 Telecommunications Service Entrance 1.4 Equipment Room 1.5 Backbone Pathways or Riser Shafts 1.6 Telecommunications closets (TC) 1.7 Horizontal pathways 1.8 Radio (Wireless) Facilities Provision 1.9 Standards & References Principle 2: Diversity 2.1 Building Entry Point (BEP) 2.2 Equipment Room 2.3 Riser Shafts 2.4 Radio (Wireless) services Principle 3: Building Services 3.1 Air-conditioning (HVAC) 3.2 Primary Power supply 3.3 Fire protection 3.4 Electro-Magnetic Radiation 3.5 Electro-Magnetic Interference...
8/29/2018 5:31:55 PM +00:00
KRONE10GigaBit Over Copper!
10Gigabit Ethernet is an emerging technology offering data speeds up to 10 billion bits per second. This latest standard has been driven not only by the increase in normal data traffic but also by the proliferation of new, bandwidth-intensive applications. At the recent IEEE 10Gigabit/s Ethernet standard working group meeting it was announced that international structured cabling company KRONE had made a breakthrough. The company has demonstrated the first augmented Category 6 cable in the world with the necessary characteristics to enable 10Gigabit/s Ethernet to be implemented over unshielded twisted pair (UTP) to the full 100 meters required for structured...
8/29/2018 5:31:55 PM +00:00
Ethernet Signal PreservationIn Factory-Terminated Patch Cords for Local Area Networks
An electrical impulse takes the shape of a sine wave. A wave has two components: the amplitude and the frequency (frequency can also be called wavelength). The amplitude is the “height” of the wave. The frequency, or wavelength, is the number of peaks in a given timeframe (see Figure 2). And the simple answer is: certain patch cord lengths cause unacceptable signal reflection and distortion to Ethernet signals, leading to errors and poor network throughput. Factory-terminated 4, 7, 10 and 15 foot TrueNet cords prevent this distortion, preserving the integrity of 10/100Base-T Ethernet signals....
8/29/2018 5:31:55 PM +00:00
Is Your Structured Cabling Power Over Ethernet Compliant?
Is Your Structured Cabling Power Over Ethernet Compliant? KRONE, Exceeding International Standards, Confirms Power over Ethernet Compliance of Products KRONE Australia is proud to advise all PremisNET® solutions are fully compliant with the IEEE 802.3af standard for DTE power over structured cabling ratified on 12th June 2003. As a member of the ISO/IEC, CENELEC and TIA working groups specifying the structured cabling channel and component requirements that support the 802.3af standard, KRONE was able to ensure all products were fully compliant as the IEEE and cabling standards progressed. “KRONE have been able to stay ahead of the game due to our commitment...
8/29/2018 5:31:55 PM +00:00
Will Your Structured Cabling be Suitable for IP Telephony?
Will Your Structured Cabling be Suitable for IP Telephony? Discussions on the impact that a network's structured cabling system has on VoIP operation. Introduction IP Telephony, which includes the commonly known Voice over Internet Protocol (VoIP), is usually introduced into an enterprise as a cost saving measure. This is part of the convergence of data and voice (and video) on the local network so that it is under the control of the enterprise rather than relying on outside specialists. To implement this successfully all components including the network cabling infrastructure, need to be evaluated to ensure the voice quality of the 'telephone'...
8/29/2018 5:31:55 PM +00:00
How to Insure Your Network Against Acts of God
Hundreds of Thousands of $$$ Worth of Network Equipment can be Rendered Junk in a Flash! The issue of protecting networks from security breaches has attracted considerable attention but organisations also need to guard against environmental risks such as lightning. Damaged or destroyed equipment, which is integrated into manufacturing or data storage processes, can cause physical damage, as well as high consequential losses due to downtime. Lightning strikes can also delay production due to data loss and damage process control computers or computer-based warehouse and storage systems. Such delays usually cost many times the amount of the direct damage. While it...
8/29/2018 5:31:55 PM +00:00
PERFORMANCE TESTING OF COPPER PERMANENT LINKS AND CHANNEL
Performance Testing of Permanent Links and Channels Testing of telecommunications Permanent Links and Channels to determine performance compliance to Class D (using Cat 5 components) and Class E (using Cat 6 components) is an issue that that is vital to the application for a KRONE Warranty. AS/NZS 3080:2002 (and ISO 11801 Ed 2) has lifted the Class D performance pass mark from Cat 5 to Cat 5E level. This document therefore correctly refers to the component category as Cat 5 for Class D performance in accordance with the International Standard....
8/29/2018 5:31:55 PM +00:00
TrueNet Installation Guidelines C5eT & C6T
TrueNet Installation Guidelines C5eT & C6T Parameter Horizontal Run Distance Patch Cable Lengths Current Standards 90 Metres Total of all patch cables less than 10 Metres Unspecified, but do not allow specific components
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Improving Bit by Bit
To move signals of that frequency around efficiently within my transmitting station needed what can only be described as plumbing transmission lines made out of thin copper pipes and ceramic insulators—the alternative being expensive, specially constructed, but very high loss, coaxial cable. Yet here we are twenty years later happily shoving similar frequencies down twisted pairs without really thinking about the physics involved! Three factors about radio frequency signals are very important in understanding our problem:...
8/29/2018 5:31:55 PM +00:00
On Data Throughput in Structured Cabling Systems
Cabling infrastructure providers are following KRONE’s lead regarding the importance of having the lowest bit error rate possible. This white paper confirms that zero bit error rate is a practical reality that Network managers can rely on. More and more network managers are demanding that their networks operate to their maximum potential, rather than merely operate as a standardscompliant solution. Downtime or a slowdown in network performance can be crippling to an organisation in today’s global e-commerce environment. The network cabling infrastructure must be able to support an enterprise’s increasing rates of data transmission now and in the future....
8/29/2018 5:31:55 PM +00:00
PERFORMANCE TESTING OF OPTICAL FIBRE LINKS
PERFORMANCE TESTING OF OPTICAL FIBRE LINKS FOR COMPLIANCE TO ISO/IEC 11801 Using the test methods set out in ISO/IEC 14763-3 - Testing of optical fibre cabling Main changes from previous Version 6; Item 8 3-Test Cord Method for Reference Setting is default method Item 10 Field Calibration Cord, Launch & Tail Cords shall all have Reference Connectors Item 11 Method of Removal of Field Calibration Cord Adaptors for Link Testing Item 14 Insertion Loss for Reference and Non-Reference Connectors Item 15 Example of Loss Budget Calculation Updated for Reference Connectors Item 16 Links of 1/10GBE or any Channel to be Tested in 2...
8/29/2018 5:31:54 PM +00:00
Laser-Optimized Fiber
Laser-Optimized Fiber: Built for Price, Bandwidth, and Distance to Make the Most of Your Investment Over the past 25 years, Ethernet standards have evolved from 10 Mbps and 100 Mbps to Gigabit and now 10 Gigabit. The rapid growth of Internet use and bandwidth-intensive applications combined with routine transmission of large files is driving the need for 10 Gigabit Ethernet (10GbE) in many network backbone and data center connections. Implementation is happening all around us. Sales of 10GbE switch ports are increasing dramatically, and will continue to grow over the next decade. With increased network speeds comes a rise in the significance...
8/29/2018 5:31:54 PM +00:00
Performance testing of optical fibre links
Tài liệu tham khảo về Performance testing of optical fibre links
8/29/2018 5:31:54 PM +00:00
Fiber Cable ManagementThe Key to Unlocking Fiber’s Competitive Advantages
The Key to Unlocking Fiber’s Competitive Advantages Lower cost of operations, greater reliability and flexibility in service offerings, quicker deployment of new and upgraded services—these are the characteristics of a successful service provider in a competitive global market. Service providers continue to build out high-bandwidth networks around the world. These networks use a great deal of fiber— all fiber in many cases—the medium that meets both their bandwidth and cost requirements. But just deploying the fiber is not enough; successful fiber network also requires a strong fiber cable management system. Management of the fiber cables has a direct impact on network...
8/29/2018 5:31:54 PM +00:00
Infrastructure Solutions for High-Performance Data Networks
Welcome to The Planning Guide for Network Managers Your data center is a critical resource within the enterprise, and the decisions you make in regards to infrastructure have implications now and in the future. To allow you to fully assess and document the physical aspects of your data center, and gain insight into how it can be optimized, ADC has created this Planning Guide for Network Managers. Within the guide, we’ll address several key questions: What is the ideal layout and how does that compare to your current setup? What about cable management? How can you better manage cabling to maximize...
8/29/2018 5:31:54 PM +00:00
Mitigation Techniques To Reduce Alien Crosstalk Noise In 10GBE Channels Using UTP Cabling
Mitigation Techniques To Reduce Alien Crosstalk Noise In 10GBE Channels Using UTP Cabling These mitigation techniques are good installation practices that will benefit both Class E and Class EA performance. Always use the Random Lay mantra; “Random lay in the bundle and tray For Cat 6 cable and Cat 6A “ © P. Meijer An existing Class E channel using Category 6 components will have its performance improved to a level where it may comfortably carry 10GBE applications by applying where possible a combination of some of the following; At the Floor Distributor Remove cable ties from bundles in the...
8/29/2018 5:31:54 PM +00:00
Navigating Circuit to Packet Network Migration
Navigating the migration of circuit switched to packet switched networks is a complex affair. In pursuit of improving overall network efficiency and making advanced data services available, service providers must simultaneously protect existing TDM revenue while investing in new packet-based technologies. The good news is that the circuit switched architecture, which accounts for the bulk of service provider revenues, is highly reliable. The bad news is that this massive centralized processing network is neither fully depreciated nor built for packet switching. Taken together, the migration to a more efficient, distributed packet switched network will be an evolutionary process that will...
8/29/2018 5:31:54 PM +00:00
Planning for 10Gbps Ethernet over UTP
Planning a copper cabling plant to support 10Gbps transmission is complicated today by the absence of ratified standards. There are, however, some questions you can ask that can help you navigate promises and claims in the market place and, ultimately, help you select the proper infrastructure to support future 10Gbps UTP applications. Do you really need a cabling plant that can support 10Gbps Ethernet over UTP? Historically speaking, cabling installed has always led the primary data rate. For example, over 90% of switch port sales in 1995 were for the 10Mbps Ethernet protocol. Yet in that same year, the primary...
8/29/2018 5:31:54 PM +00:00
Ethernet Connectivity Selection Tutorial
Category 5, 5e or 6? 110 punchdown, or RJ to RJ? T568A or T568B? Shielded or unshielded? Will I choose the right Ethernet patch panel for my application? Will this choice work with future applications? Am I getting the best overall value? With all the choices you face as you design your network and select equipment, including available Ethernet patch panels, it’s easy to become confused and frustrated. Ultimately your choice of Ethernet panels should fit the applications you plan to run. ADC wrote this short tutorial to guide you through these decisions, to make them as painless as possible...
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Phần 1 - Các thiết bị phần cứng mạng
Tham khảo tài liệu 'phần 1 - các thiết bị phần cứng mạng', công nghệ thông tin, phần cứng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
8/29/2018 5:31:51 PM +00:00