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| Foreword | viii |
| Preface | ix |
| Acknowledgments | xii |
| Chapter 1 | Introduction to RS-232 | 1 |
| Buying a Computer |
| Installation Instructions |
| Using the Computer with Serial Ports |
| RS-232 Standard Definition |
| Why a Standard? |
| Railway System Analogy |
| Chapter 2 | Communication Jargon | 5 |
| Simplex |
| Half-Duplex |
| Full-Duplex |
| Private Lines versus Dial-up Lines |
| DTE versus DCE |
| Bits |
| Party Asynchronous Transmission |
| Timing |
| Synchronous Transmission |
| Review Questions |
| Chapter 3 | Asynchronous Modems and RS-232 | 19 |
| Transmitted Data |
| Received Data |
| Ring Indicator |
| Data Terminal Ready |
| Data Set Ready |
| Auto-Answer |
| Auto-Dial |
| Request to Send |
| Clear to Send |
| Data Center Detect |
| Contention |
| Disconnection of Lines |
| Protective Ground |
| Signal Ground |
| Modem Tests |
| Review Questions |
| Chapter 4 | EIA-232-D Operation in a Private Line Environment | 34 |
| Private or Leased Line |
| Data Terminal Ready |
| Ring Indicator |
| Data Leads |
| RTS-CTS-DCD Interaction |
| Data Set Ready |
| Review Questions |
| Chapter 5 | Synchronous Environments | 39 |
| Synchronous Terminal Emulation |
| Buffering Data |
| Bits per Second |
| Timing |
| Synchronization |
| Transmit Timing |
| Internal versus External Timing |
| Receive Timing |
| Slave Timing |
| Review Questions |
| Chapter 6 | Secondary Signals and Flow Control | 47 |
| Secondary Request to Send |
| Secondary Clear to Send |
| Secondary Data Carrier Detect |
| Secondary Transmitted Data |
| Secondary Received Data |
| Reverse Channel |
| Hardware and Software XON/XOFF |
| Review Questions |
| Chapter 7 | Cross Connections | 52 |
| Emulation |
| Null-Modem Cable |
| Synchronous Modem Eliminator |
| Asynchronous Null-Modem Cable |
| Synchronous Null-Modem Cable |
| Review Questions |
| Chapter 8 | Interfacing Equipment | 62 |
| DTE versus DCE |
| Cabling |
| Options Checklist |
| Chapter 9 | Most Frequently asked Questions about Interfacing and Answers to Questions from Chapter 1-8 | 72 |
| Questions Relating to Ports |
| Questions Relating to Serial Cables |
| Questions Relating to Parallel Cables |
| Questions Relating to Printers with Serial Interfaces |
| Questions Relating to Printers with Parallel Interfaces |
| Questions Relating to Modems |
| Questions Relating to Terminal Interfacing |
| Questions Relating to Computers with Serial Interfaces |
| Answers to Review Questions |
| Appendix A | EIA Standard EIA-232-D | 99 |
| Appendix B | EIA Standard EIA-449 | 111 |
| Appendix C | Industrial Electronics Bulletin No. 12 | 117 |
| Appendix D | EIA-232-D Circuit Summary with CCITT Equivalents | 120 |
| Appendix E | Tools of the Trade | 122 |
| Appendix F | Pinouts for Serial Ports of Computers and Peripherals | 127 |
| Computers |
| Modems and Multiplexors |
| Ports Boards and Terminal Servers |
| Buffers and Data Switchers |
| Printers and Plotters |
| Terminals |
| Appendix G | Interconnections between Computers and Peripherals | 258 |
| Appendix H | Industry Standard and Modular Cables | 403 |
| Appendix I | Common Connectors, Pinouts and Numbering Schemes | 415 |
| Appendix J | TRW Modular to DB-2S Adapters | 421 |
| Appendix K | Rules for Cable Design | 424 |
| Appendix L | Interfacing Problems and Remedies | 426 |
| Appendix M | ASCII Character Set | 429 |
| Index | 433 |
VeriFone Omni 3200SE Payment Terminal with Thermal Printer, 128KB, and SoftPay Software
basically I've been appointed damage control and handyman for a restaurant…. it needs a lot of help.
my main concern right now is to install a network system with input terminals, ticket printers, credit card readers, cabling, and a nice database……
I'm capable of running the network configuration but I'm wonder what kind of software options do we have (besides micros and aloha) and what kind of hardware options (or suppliers) there are….
its a very simple Chinese restaurant.
one of the lowest volume restaurants I've been in. right now they hand write their tickets and do the books manually.
no liquor. no bartender
3 line cooks apps/fry, grill and sautée
1 credit card machine and line,
also with 2 phone lines.
only needs are a router, 1 comp for books and 2 for terminals (maybe 1 server comp?) and about 4 line printers
colinc ——– "approved setup the credit card companies particularly will refuse to deal"
perhaps if you have more info please email me
Do not under any circumstances shackle yourself with Micros, the least function able, piece of garbage on the market. We have it where I am and it just sucks. There is also squirrel, dinerware and another who's name escapes me that was the best I ever worked with. I will let you know the name of the other system tomorrow.
Also what type of restaurant is it, what type of system you will need will depend on what level of restaurant it is.
23. American consumers have the lowest amount of waste per person in the world.
True
False
24. Some examples of biodegradable materials are diapers made of cellulose and plastic bags made from cornstarch.
True
False
25. One of the least difficult wastes to deal with is nuclear waste.
True
False
26. It is estimated that over 80% of all products are thrown away after six weeks of use.
True
False
27. The waste material that comes from discarded computer technology items, peripherals, and electronic information devices, such as computers, printers, software devices, and monitors is known as:
pre-consumer waste
post-consumer waste
E-waste
rucksack
28. ______ is waste that is left after the consumer buys the product. It is usually the packaging the product came in, a byproduct of the original product, or the product itself.
Pre-consumer waste
Post-consumer waste
E-waste
Rucksack
29. _____ is the waste that is created in the process of making products.
(1 point)
pre-consumer waste
post-consumer waste
e-waste
rucksack
30. Compost is a rich soil amendment of organic matter that is made from decomposed plant parts collected from kitchen or yard waste. (1 point)
True
False
31. It is estimated that there are thousands of satellites, pieces of old booster rockets, nuts and bolts, and a long list of scrap material left in orbit above the Earth. (1 point)
True
False
32. The Department of Transportation (DOT) is in charge of all forms of transport systems and vehicles. (1 point)
True
False
33. Modern thermal power plants generate power basically the same way that old steam engines do. (1 point)
True
False
34. The great Trans Alaska Pipeline System (TAPS) began oil transport in 1977 and has maintained the highest flow rates since it began. (1 point)
True
False
35. All of the following power plants are considered thermal power plants because they heat the steam that works the generators, except (1 point)
nuclear power plants
coal burning power plants
fossil fuel power plants
hydroelectric power plants
36. Most crude oil is delivered from terminals to refineries by: (1 point)
tanker jets
cargo trains
underground pipelines
off shore drills
37. "Green Power” clean energy production refers to all of the following new power sources except for : (1 point)
wind generators
geothermal energy
solar energy panels
nuclear fusion
38. All of the following are important integrated pest management (IPM) strategies, except:
(1 point)
using good bugs to kill bad bugs
trimming off infested plant branches
never sterilizing tools
using chemicals only when necessary
39. All of the following statements are true, except: (1 point)
The US is largest producer of corn in the world.
Corn is the main cattle and production animal feed in the US.
Almost all of the corn grown in the US is exported.
Corn alcohol is distilled to make the cleaner fuel called ethanol.
40. All of the following statements are true, except:
(1 point)
Tractors allowed farmers to be more productive and changed human lifestyles.
The US is considered a major agricultural nation.
Agriculture in the US has to follow the strict environmental laws of the US Farm Bill.
There are currently no inspection services for food grown in the US
instead of you making people do your work right now
why dont you use your time to search some of these online
all of these can be found online research. and most are common sense
basically im saying is DO YOUR OWN WORK
this is too much to ask in a question
My school's computer lab is known for being infested with trojans and other viruses. Inserting your USB drive into any terminal almost guarantees infection.
I've taken to unplugging the network cable from the back of PCs and connecting it to my laptop in order to use the printers. It works great, but will this leave me vulnerable to viruses?
I haven't gotten any so far using this technique, but I just want to be sure.
I'm very conscious about having and using antivirus/antispyware/firewall software frequently and properly on my personal machines.
You shouldn't as long as you have a decent AV on your lappy. If you leave your lappy connected to the crippled school network for a while, it very well might happen, but for 2 minutes to print something; I really doubt it.
I made a live CD of ubuntu 7.10 all the basic things worked well. But then when I tried to actually use it you know like game get my all in one printer working I was like h4×0rz pwn j00! Junk.
Im not a fan-boy of apple,microsoft or linux.
But how can they call this superior?
ITS HALFED BAKED lot of good reading online ~positive~ about it lots of hype…..I just dont get it!
Is it suppose to be this complicated. more time in the terminal then actualy using it. Yes got beryl working cube junk!
Why do you like it?
Thanks.
XP easy
Vista easy
OSX easy
ubuntu or any number of the 1000000 different kinds OMFG! like 0.6% users?
I see linux excellent as a server. But not really for the desktop.
I did like open office but I can get that to work in XP and open office wont do any good in linux because of my all in one problem ;-(
Ok you lil noob! linux does get virues trojans and yes it does crash. now get your head out of the penguins bung!
again i fail to see the superior part about linux….1 it lacks support 2 no drivers for NEW things. 3 complicated. I just like one click not ~ lizard-wang dododod pee my pants-sudo. LOL
Versions of linux are based off the unix kernel - which is far more stable than anything Microsoft ever came up with. It is far more expandable and adaptable than Windows. A lot of your small to mid-sized commercial software is written for unix or linux based computers because they don't crash - they're running 24/7 with very little problems. A Windows NT environment had to be re-booted at least once a week to keep them going - not so with the unix/linux platform. This is because Windows doesn't block off memory spaces for sole use of applications - unix does - if an application in unix should crash - it doesn't affect anything else - you can kill that process and restart it - with nothing else bothered, no reboot necessary, etc.
Apple, to me is the best of both worlds - it uses the solid unix core underneath the OS X operating system, which is very user friendly, more so than linux - although once you spend some time with linux and realize it's power, you can have fun with it - it's sort of combination of PC and mainframe - if you will, which is the environment I work in.
I haven't tried the ubuntu version per se, but have used Red Hat and SuSe. I've also used the SCO OpenServer 5.5 Unix Enterprise version which the GUI was ancient-looking, but extremely powerful in its capabilities, for example, it'd run 64 terminal displays just for the console as a default on my system if I allowed it to.
For ease of use, I'd check out the Apple OS X - newest version is Leopard which is more pure in Unix than their previous OS X versions. Of course, you're stuck running it on an Apple - which I've become a convert to and will never buy another Windows PC again for my own use.
http://www.microsoftvolumelicensing.com/userights/Downloader.aspx?DocumentId=1869 - and separately licensed functionality used on a device or by a user. For example, if you use Office on Windows, you need licenses for both Office and Windows. Likewise, to access Terminal Services in Windows Server you need both a Windows Server CAL and a Terminal Services CAL. 13. Font Components. While the software is running, you may use its fonts to display and print content. You may only o embed fonts in content as permitted by the embedding restrictions in the fonts; and o temporarily download them to a printer or other output device to print content. 14. .NET Framework and PowerShell Software. The software for the products listed below contains Microsoft .NET Framework software and may contain PowerShell Software. These software components are part of Microsoft Windows. Except
Duration : 0:1:11
MULTIPLE CHOICES
Identify the choice that best completes the statement or answers the question.
_A__1. Which of the following is a personal computer?
a. Desktop c. Terminal b. Mainframe d. All of the above
B_2. The physical components of a computer are referred to as ____.
a. software c. configurations b. hardware d. specifications
___3. Which of the following is the largest unit of measurement?
a. Terabyte c. Megabyte b. Gigabyte d. Kilobyte
_B__4. Dragging with the mouse enables you to ____.
a. Shift from one program to another. b. Move an icon or window to another location on the desktop. c. Select an item from a menu. d. Display a shortcut menu for an item.
___5. To start a program from the Windows XP desktop, you first ____.
a. Right click the Start button c. Select Open from the Start menu b. Click the Application button d. Click the Start button
___6. Which of the following appears on the Accessories submenu?
a. Start button c. Recycle Bin b. System Tools d. My Computer
_B__7.If you open a file, make changes to it, and save the file with the same file name, what happens to the original file?
a. It remains unchanged. b. It reflects the changes made to the original file. c. It is temporarily stored on the Clipboard. d. It moves up in the file hierarchy.
_A__8. .A browser is ____.
a. A program you use to access the Internet b. A program for organizing the files and folders on a computer c. A program for searching for information on your computer d. All of the above
___9. The hard drive is most often disk drive ____.
a. A c. C b. B d. G
__C_10. When two or more computers are connected locally, such as in an office, the network is called a(n) ____.
a. Internet c. Intranet b. Telecommunications network d. None of the above
___11. A hyperlink on a Web page can ____.
a. Open a graphics file c. Play a video file b. Play a sound file d. All of the above
_A__12. To view the previous page, click the ____ on the toolbar.
a. Back button c. Hyperlink b. URL d. scroll arrow
___13____ is the perfect solution when you need to work with numeric values and make calculations.
a. Word c. Access b. PowerPoint d. Excel
__A_14. When working in a program, one of the first things you need to do is to create and save a ____.
a. file c. Group b. cluster d. Record
___15. By opening an existing Office file and saving it with the ____ command, you create a duplicate that you can modify, while the original file remains intact.
a. Save c. Save As b. Open d. New
__B_16. Which element of the Word program window indicates where text will appear when you type?
a. ScreenTip c. Zoom list arrow b. Click and Type pointer d. Insertion point
___17. What is the default file format for Word 2007 documents?
a. .docx c. .dotx b. .doc d. .wd
___18. What is the temporary filename Word assigns a new blank document?
a. File1 c. New File b. Document1 d. New Document
___19. Which command is used to create a new file that is a copy of the original?
a. Save c. More Documents b. Save As d. New From Existing
__A_20. “Cut and paste” describes what operation?
a. Copying text c. Replacing text b. Deleting text d. Moving text
__A_21. What is the keyboard shortcut for copying text?
a. [Ctrl][C] c. [Ctrl][Q] b. [Ctrl][A] d. [Ctrl][V]
___22. Which tool would you use to change the format of text to 20 points?
a. Font list arrow c. Font color list arrow b. Font size list arrow d. Style list arrow
_B__23. Bold and italics are examples of what?
a. Fonts c. Font effects b. Font styles d. Character-spacing effects
___24. In which group do you find the command used to change the line spacing in a document?
a. Font c. Borders and Shading b. Paragraph d. Style
__C_25. What are the default page settings for a Word document?
a. 11″ x 14″ paper, landscape orientation. c. 8.5″ x 11″ paper, landscape orientation. b. 11″ x 14″ paper, portrait orientation. d. 8.5″ x 11″ paper, portrait orientation.
___26. Which tab is used to change document margins?
a. Page Layout c. Insert b. Home d. View
___27. Which tab in the Page Setup dialog box is used to change the orientation of pages?
a. Margins c. Layout b. Page d. Paper
True/False
Indicate whether the statement is true or false.
___28. Each of the items labeled “workstation” in the above figure must have a network interface card installed.
___29. The printer in the above figure is considered a node.
___30. The operating system is the set of instructions that direct the computer to accomplish specific tasks
such as document production and spreadsheet calculations.
___31. A browser allows you to search for files that are saved on your computer.
___32. The mouse pointer changes shape when you are manually resizing a window.
___33. To access t
no way