Pamphlet of Computer System Architecture (LO3) KEY SYSTEM COMPONENTS: Von Neumann architecture- Model for designing and building computers‚ based on the following three characteristics: * The computer’s four main sub-systems: * Memory * ALU (Arithmetic/Logic Unit) * Control Unit * Input/output System (I/O) * Program is stored in memory during execution. * Program instructions are executed sequentially. VON NEUMANN ARCHITECTURE MEMORY SUBSYSTEM: *
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Performance Operating System Windows Server 2003‚2008‚ or 2012 Standard or Small Business (SBS) Windows Server 2008R2 Standard Recommend Windows SBS Server 2011 Hard Drive 10GB Available after install 500GB 7.2K RPM SATA 3Gbps 3.5in Cabled Hard Drive Exceeds specs Backup Backup disk‚tape‚ orCD-RW drive External USB 2.0TB Hard Drive Exceeds specs Protocol TCP/IP TCP/IP Hub or Switch 10/100 Ethernet hub‚ for up to 10 users 1000 Ethernet Switch Exceeds specs
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unit‚ laptop‚ netbook‚ PDA‚ mobile phone‚ games consoles‚ tablet‚ server‚ embedded devices (inside phones‚ domestic appliances‚ cars) Hardware components: processor speed and type; memory eg RAM‚ cache; storage devices‚ eg hard disk drive‚ memory stick‚ CD ROM‚ flash drive‚ DVD; input devices eg touch screen‚ graphics tablet‚ gaming controller‚ microphone‚ mouse‚ keyboard; output devices eg printer‚ monitor‚ sound; computer network connectivity eg 3G‚ Wireless‚ Bluetooth‚ NIC; costs Software
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Which of the following is not a feature of a file system that might be used with a hard disk drive? () 9. A student writes a report using a word processor‚ saving the report in a file called my_report. The student stores the file on his laptop hard disk drive. Later‚ he posts the file on a file-sharing site for a classmate to review the report. Then‚ he copies an updated version of the file to a flash drive to submit it to his instructor. Which of the following are some of the important features
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Computers (PCs) or Desktop Computers. These are relatively small and inexpensive. They consist of a single processor or a chip The system is normally made up of the microprocessor‚ keyboard‚ VDU one or two floppy disk drives‚ a printer and a hard disk drive. It has a hard disk capacity of 20Mb to 520Mb May use a colour or monochrome cathode ray tube (CRT) Have capabilities for networking. They are single user. They occupy little space. They are capable of multiprogramming.
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Touch screen Touch pad Joystick Multimedia devices Pc camera Digital camera Microphone Web cam Automated input devices (devices that capture data directly from source) Optical Mark Reader Magnetic ink Character Reader Bar Code Reader Scanner STUDY HARD AND MAKE YOURSELF PROUD 1 Information Technology CXC notes Optical Character Reader RFID (radio frequency identification) Magnetic Stripe Card Reader Keyboard devices TUTOR: MR. G JAMES Keyboard-: This is an input device that is used
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marketplace they will need to be replaced. These three computers all have internal hard disks with 50GB of storage capacity or less‚ have processors running at speeds of less than 2GHz‚ have less than 2GB of RAM‚ have CD drives‚ and n more than 2 USB ports. I want each to have at least 100GB of storage capacity‚ run at speeds of more than 2GHz‚ have at least 3GB of RAM‚ have at least one of the laptops with a DVD drive‚ and at least 3 USB ports each. I would also like our new computers to all have a
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Lab 1-2 70-643 Worksheet Preparing an Application Server This lab contains the following exercises: Exercise 1-2-1 Performing Initial Configuration Tasks Exercise 1-2-2 Working with Disks Exercise 1-2-3 Using Server Manager Exercise 1-2-4 Adding the File Services Role Lab Review: Questions Lab Challenge: Using Diskpart.exe Estimated lab time: 70 minutes BEFORE YOU BEGIN The classroom network consists of Windows Server 2008 student servers and the ServerDC connected to a local
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storage. If your computer’s CPU had to constantly access the hard drive to retrieve every piece of data it needs‚ it would operate very slowly. When the information is kept in memory‚ the CPU can access it much more quickly. Most forms of memory are intended to store data temporarily. As you can see in the diagram above‚ the CPU accesses memory according to a distinct hierarchy. Whether it comes from permanent storage (the hard drive) or input (the keyboard)‚ most data goes in random access memory
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board inside a computer that connects the different parts of a computer together. It has sockets for the CPU‚ RAM and expansion cards (e.g. discrete graphics cards‚ sound cards‚ network cards‚ storage cards etc)... and it also hooks up to hard drives‚ disc drives and front panel ports with cables and wires. - See more at: 1. Back Panel Connectors & Ports Connectors and ports for connecting the computer to external devices such as display ports‚ audio ports‚ USB ports‚ Ethernet ports‚ PS/2 ports
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