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Optimizing and Protecting Hard Drives ‐ Chapter # 9
Optimizing and Protecting Hard Drives ‐ Chapter # 9 Amy Hissom Key Terms antivirus (AV) software — Utility programs that prevent infection or scan a system to detect and remove viruses. McAfee Associates’ VirusScan and Norton AntiVirus are two popular AV packages. backup — An extra copy of a file, used in the event that the original becomes damaged or destroyed. boot sector virus — An infectious program that can replace the boot program with a modified, infected version of the boot command utilities, often causing boot and data retrieval problems. buffer — A temporary memory area where data is kept before being written to a hard drive or sent to a printer, thus reducing the number of writes to the devices. chain — A group of clusters used to hold a single file. child, parent, grandparent backup method — A plan for backing up and reusing tapes or removable disks by rotating them each day (child), week (parent), and month (grandparent). cross-linked clusters — Errors caused when more than one file points to a cluster, and the files appear to share the same disk space, according to the file allocation table. defragment — To “optimize” or rewrite a file to a disk in one contiguous chain of clusters, thus speeding up data retrieval. differential backup — Backup method that backs up only files that have changed or have been created since the last full backup. When recovering data, only two backups are needed: the full backup and the last differential backup. disk cache — A method whereby recently retrieved data and adjacent data are read into memory in advance, anticipating the next CPU request. -
Lab 13A: Configuring Disk Compression
Lab 13A: Configuring Disk Compression Objectives After completing this lab, you will be able to: !" Configure an NTFS volume for compression. !" Move files with the compression attribute set. !" Copy files with the compression attribute set. Prerequisites Before working on this lab, you must have: !" Knowledge of the NTFS file system. !" Knowledge of file compression. Estimated time to complete this lab: 15 minutes 2 Lab 13A: Configuring Disk Compression Exercise 1 Configuring Disk Compression In this exercise, you will enable disk compression and view the effects of compression on the Documents and Settings folder and subfolders. Scenario To provide the maximum storage capacity for your client computers, the IT manager has decided that NTFS disk compression will be enabled for folders on client computers that are low on disk space. You have been tasked with enabling disk compression for specified folders on your client computers. Tasks Detailed steps 1. Log on as Administrator a. Log on as Administrator with the password of password. with the password of b. Open Explorer, and then on the Tools menu click Folder Options. password and configure c. In the Folder Options dialog box, on the View tab, select the Show Microsoft® Windows® Explorer to display encrypted or compressed NTFS files in color check box, and then compressed files and folders click OK. in another color. 2. Compress the Documents a. In the left pane, expand Local Disk (C:), right-click Documents and and Settings folder Settings, and then click Properties. hierarchy. What are the Size and Size on disk values for the Documents and Settings folder? Answers will vary. -
Windows Command Prompt Cheatsheet
Windows Command Prompt Cheatsheet - Command line interface (as opposed to a GUI - graphical user interface) - Used to execute programs - Commands are small programs that do something useful - There are many commands already included with Windows, but we will use a few. - A filepath is where you are in the filesystem • C: is the C drive • C:\user\Documents is the Documents folder • C:\user\Documents\hello.c is a file in the Documents folder Command What it Does Usage dir Displays a list of a folder’s files dir (shows current folder) and subfolders dir myfolder cd Displays the name of the current cd filepath chdir directory or changes the current chdir filepath folder. cd .. (goes one directory up) md Creates a folder (directory) md folder-name mkdir mkdir folder-name rm Deletes a folder (directory) rm folder-name rmdir rmdir folder-name rm /s folder-name rmdir /s folder-name Note: if the folder isn’t empty, you must add the /s. copy Copies a file from one location to copy filepath-from filepath-to another move Moves file from one folder to move folder1\file.txt folder2\ another ren Changes the name of a file ren file1 file2 rename del Deletes one or more files del filename exit Exits batch script or current exit command control echo Used to display a message or to echo message turn off/on messages in batch scripts type Displays contents of a text file type myfile.txt fc Compares two files and displays fc file1 file2 the difference between them cls Clears the screen cls help Provides more details about help (lists all commands) DOS/Command Prompt help command commands Source: https://technet.microsoft.com/en-us/library/cc754340.aspx. -
Module Introduction
Module Introduction PURPOSE: The intent of this module is to provide an overview of the MPC5200. OBJECTIVES: - Identify the MPC5200 Block Diagram - Identify the MPC5200 Target Markets - Describe HiP7 Technology - Describe Core Features - Describe System Level Features CONTENT: - 28 pages - 5 questions LEARNING TIME: - 55 minutes The intent of this module is to provide you with an overview of the MPC5200 microcontroller. You will become familiar with the MPC5200 and its target markets. You will also learn about the composition of the MPC5200 by studying its block diagram. Finally, you will explore the core and system level features of the of the MPC5200. 1 MPC5200 Overview Designed with automotive/telematics applications in mind Runs at higher clock, bus, and CPU speeds Handles a tremendous range of applications Welcome to the MPC5200. This processor provides very high performance in automotive and other embedded environments. This device has been designed with automotive and telematics applications in mind. What is new about the MPC5200? Generally, automotive class processors have not run at the clock speeds seen in the MPC5200. The external bus speeds of this device are up to 132 MHz and the internal execution speed for the CPU is up to 400 MHz. This provides the horsepower to do voice recognition, graphics processing and wireless communications. The MPC5200 is not just for automotive applications. In fact, this device will handle a tremendous range of applications. This is mainly due to the wide range of communications peripherals and timers, as well as the processing power provided by the 603 G2_LE core that uses the PowerPCTM instruction set. -
GBCC-CIS-1 Page 1 Micro-Soft’S Macro-Impact
CIS111 GBCC Renee Dodge CIS111 Mid-Term – Fall 2010 For your mid-term, I would like you to conduct some research on the history of computers. Select a milestone or event that you feel had a significant impact on the overall development of computers and how we use computers today. Be sure you not only provide your opinion as to why you feel this milestone is significant, but also provide historical proof - actual facts as to how this event shaped the development and use of computers. For this assignment, please complete the following: 1. Choose a topic 2. Research your topic and locate at least 5 different sources of information, overall. o At least 3 sources should be Internet websites. o Remember: Wikipedia is NOT an acceptable research source. 3. In addition to the Internet, you should also utilize the library online resources (EBSCO database, e-Books, etc). o At least 2 different sources of information should be online library resources. o If you have never used the library online resources before, you may ask me for a brief overview of how to use them or see Becky Clerkin in the library for help. 4. Include your research findings in a 5-page paper and be sure to properly cite where you found your information. If you are not sure how to cite references check out the following link: How to Cite Books, Magazines, and Web Sites in a Research Paper: http://www.lib.duke.edu/libguide/works_cited.htm 5. Upload your research paper to the Digital Drop BoX no later than Wednesday, October 27th at 11:59pm. -
MX2 Reference Guide, Rev A
MX2 Reference Guide MX2A137REFGD October 2000 E-EQ-MX2RG-A-ARC Copyright © 2000 by LXE Inc. An EMS Technologies Company All Rights Reserved MX2A1 3 7REFGD REV I S I ON A REGULATORY NOTICES Notice: LXE Inc. reserves the right to make improvements or changes in the products described in this manual at any time without notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, LXE assumes no liability resulting from any errors or omissions in this document, or from the use of the information contained herein. Copyright Notice: This manual is copyrighted. All rights are reserved. This document may not, in whole or in part, be copied, photocopied, reproduced, translated or reduced to any electronic medium or machine-readable form without prior consent, in writing, from LXE Inc. Copyright © 2000 by LXE Inc., An EMS Technologies Company 125 Technology Parkway, Norcross, GA 30092, U.S.A. (770) 447-4224 LXE is a registered trademark of LXE Inc. All other brand or product names are trademarks or registered trademarks of their respective companies or organizations. Note: The original equipment’s Reference Manual is copyrighted by PSC® Inc. This manual has been amended by LXE® Inc., for the MX2 and Docking Stations with PSC’s express permission. Notice: The long term characteristics or the possible physiological effects of radio frequency electromagnetic fields have not been investigated by UL. FCC Information: This device complies with FCC Rules, part 15. Operation is subject to the following conditions: 1. This device may not cause harmful interference and 2. -
A Guide to Discuss Ethical Issues in Digital Research Second Edition
Ethical challenges in digital research 2nd edition ETHICAL CHALLENGES IN DIGITAL RESEARCH A guide to discuss ethical issues in digital research Second edition Ethical challenges in digital research 2nd edition Ethical challenges in digital research – A guide to discuss ethical issues in digital research Second edition January 2020 Developed by DIGETIK at Aalborg University as part of DIGHUMLAB Authors Line Lisberg Christensen, Research Assistant Malene Charlotte Larsen, Associate Professor Layout Steffen Madsen, DIGHUMLAB i Ethical challenges in digital research 2nd edition I. Introduction to document The ever-changing development of digital technologies and digital infrastructure makes it necessary for us as researchers to change approaches to digital research within the humanities. In terms of research ethics, we can no longer use traditional laws and guidelines that only match the non-digital world. In a time where it is necessary to change and re-think our ways of doing research, we bring to you this second version of Ethical Challenges in Digital Research to initiate discussions about ethical research and to help guide you in your digital research. The compound may serve you as a guideline to ethical research, a helpful tool to those in need of inspiration or merely as a list of literature that is relevant to your field, whether that is: big data, surveillance, privacy, games and gamification, ethics in studies with children and adolescents, health research, journalism, ethnographic studies, visual methods, vulnerable groups, web archives, economy, risky business for researchers or one of the many other categories in this collection of ethical digital research. We initially created this document with the intention of helping scholars reflect and discuss the ethical dimensions of their digital research, whilst providing guidance and insight about how to deal with these issues. -
Ebook - Informations About Operating Systems Version: August 15, 2006 | Download
eBook - Informations about Operating Systems Version: August 15, 2006 | Download: www.operating-system.org AIX Internet: AIX AmigaOS Internet: AmigaOS AtheOS Internet: AtheOS BeIA Internet: BeIA BeOS Internet: BeOS BSDi Internet: BSDi CP/M Internet: CP/M Darwin Internet: Darwin EPOC Internet: EPOC FreeBSD Internet: FreeBSD HP-UX Internet: HP-UX Hurd Internet: Hurd Inferno Internet: Inferno IRIX Internet: IRIX JavaOS Internet: JavaOS LFS Internet: LFS Linspire Internet: Linspire Linux Internet: Linux MacOS Internet: MacOS Minix Internet: Minix MorphOS Internet: MorphOS MS-DOS Internet: MS-DOS MVS Internet: MVS NetBSD Internet: NetBSD NetWare Internet: NetWare Newdeal Internet: Newdeal NEXTSTEP Internet: NEXTSTEP OpenBSD Internet: OpenBSD OS/2 Internet: OS/2 Further operating systems Internet: Further operating systems PalmOS Internet: PalmOS Plan9 Internet: Plan9 QNX Internet: QNX RiscOS Internet: RiscOS Solaris Internet: Solaris SuSE Linux Internet: SuSE Linux Unicos Internet: Unicos Unix Internet: Unix Unixware Internet: Unixware Windows 2000 Internet: Windows 2000 Windows 3.11 Internet: Windows 3.11 Windows 95 Internet: Windows 95 Windows 98 Internet: Windows 98 Windows CE Internet: Windows CE Windows Family Internet: Windows Family Windows ME Internet: Windows ME Seite 1 von 138 eBook - Informations about Operating Systems Version: August 15, 2006 | Download: www.operating-system.org Windows NT 3.1 Internet: Windows NT 3.1 Windows NT 4.0 Internet: Windows NT 4.0 Windows Server 2003 Internet: Windows Server 2003 Windows Vista Internet: Windows Vista Windows XP Internet: Windows XP Apple - Company Internet: Apple - Company AT&T - Company Internet: AT&T - Company Be Inc. - Company Internet: Be Inc. - Company BSD Family Internet: BSD Family Cray Inc. -
Chapter 3. Booting Operating Systems
Chapter 3. Booting Operating Systems Abstract: Chapter 3 provides a complete coverage on operating systems booting. It explains the booting principle and the booting sequence of various kinds of bootable devices. These include booting from floppy disk, hard disk, CDROM and USB drives. Instead of writing a customized booter to boot up only MTX, it shows how to develop booter programs to boot up real operating systems, such as Linux, from a variety of bootable devices. In particular, it shows how to boot up generic Linux bzImage kernels with initial ramdisk support. It is shown that the hard disk and CDROM booters developed in this book are comparable to GRUB and isolinux in performance. In addition, it demonstrates the booter programs by sample systems. 3.1. Booting Booting, which is short for bootstrap, refers to the process of loading an operating system image into computer memory and starting up the operating system. As such, it is the first step to run an operating system. Despite its importance and widespread interests among computer users, the subject of booting is rarely discussed in operating system books. Information on booting are usually scattered and, in most cases, incomplete. A systematic treatment of the booting process has been lacking. The purpose of this chapter is to try to fill this void. In this chapter, we shall discuss the booting principle and show how to write booter programs to boot up real operating systems. As one might expect, the booting process is highly machine dependent. To be more specific, we shall only consider the booting process of Intel x86 based PCs. -
Softnas Deployment Guide for High- Performance SQL Storage
SoftNAS Deployment Guide for High- Performance SQL Storage Introduction SoftNAS cloud NAS systems are based on an innovative, memory-centric storage architecture that delivers unparalleled NAS performance, efficiency, and value. They incorporate a hybrid disk storage technology that tailors the usage of data disks, log solid- state cache drives (SSDs), and read cache SSDs to the data share's specific needs. Additional features include variable storage record size, data compression, and multiple connectivity options. As a Cloud NAS solution, SoftNAS cloud NAS systems provide an excellent base for Microsoft Windows Server deployments by providing iSCSI or Fibre Channel block storage for Microsoft SQL Server, and network file system (NFS) or server message block (SMB) file storage for Microsoft Windows client access. This document covers the best practices to follow when deploying Microsoft SQL Server on a SoftNAS cloud NAS system. The intended audience is storage administrators and Microsoft SQL Server database administrators. Maintaining High Availability As with any business-critical application, high availability is a crucial design criterion to be considered when deploying a Microsoft SQL Server installation. Microsoft SQL Server 2016 can be installed on local and/or shared file systems, and SoftNAS cloud NAS systems can satisfy both of these options. Local file systems (from the Microsoft Windows Server perspective) are hosted as block volumes—iSCSI and/or Fibre-Channel-connected LUNs and file systems as SMB and/or NFS volumes. High availability starts with the network connectivity supporting the storage and server interconnectivity. Any design for the storage infrastructure should avoid single points of failure. Because many white papers and publications cover storage-area networking and network-attached storage resilience, those topics are not covered in detail in this paper. -
Concurrent CP/M-86 User's Guide 1.1 What Concurrent CP/M-86 Is
Concurrent CP/M-86™ Operating System Concurrent CP/M-86™ Operating System User's Guide Copyright © 1982 Digital Research P.O. Box -579 160 Central Avenue Pacific Grove, CA 93950 (408) 649-3896 TWX 910 360 5001 All Rights Reserved COPYRIGHT Copyr ight © 1982 by Digi tal Research. All r igh ts reserved. No part of this pUblication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or compu ter language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permiss ion of Digital Research, Post Off ice Box 579, Pacific Grove, California, 93950. This manual is, however, tutorial in nature. Thus, the reader is granted permission to include the example programs, either in whole or in part, in his own programs. DISCLAIMER Digital Research makes no representations or warranties with respect to the contents hereof and specifically disclaims any ,implied warranties of merchantabil i ty or fitness for any particular purpose. Further, Digital Research reserves the right to revise this publication and to make changes f rom time to time in the content hereof wi thou t obligation of Digital Research to notify any person of such revision or changes. TRADEMARKS CP/M is a registered trademark of Digital Research. ASM-86, CP/M-86, Concurrent CP/M-86 and DDT-86 are trademarks of Digital Research. ED and TEX are utilities of Digital Research. Intel is a registered trademark of Intel Corporation. The IBM Personal Computer is a trade name of International Business Machines. -
Introduction to MS-DOS
1.Introduction to MS-DOS : MS-DOS (Microsoft Disk Operating System) was the Microsoft-marketed version of the first widely-installed operating system in personal computers. It was essentially the same operating system that (Bill Gates's) young company developed for IBM as Personal Computer - Disk Operating System in 1981. Most users of either DOS system simply referred to their system as Disk Operating System. Like PC-DOS, MS-DOS was (and still is) a non-graphical line-oriented command- driven operating system, with a relatively simple interface but not overly "friendly" user interface. Its prompt to enter a command looks like this: C:\> MS-DOS does not care about anything called an icon, wallpaper or screen saver. Rather than being considered as a Graphical User Interface (GUI) MS-DOS is what is known as a command-line interface. You type commands on what is called the command line. MS-DOS is a single-user, single-tasking computer operating system. In spite of its very small size and relative simplicity, it is one of the most successful operating systems that has been developed to date. In DOS, a file name consists of eight character followed by a 3 character file extension. The size of a file is restricted to a 4 byte file descriptor, which limits a file’s maximum size to approximately 4 billion characters. The first release of DOS could not read or write to disk drives so users could only read and write to a floppy disc. DOS was not a state of the art operating system, even for its time.