CMPSCI 105

Computer Literacy (University of Massachusetts)

Fall 2014

CMPSCI 105 Image

News & Upcoming Events

Lecture Notes (Only a few will ever be here)


Tuesday, October 28, 2014

All the midterm exams (except for a couple of stragglers) have been graded and entered into our database. Please come pick up your exam, plus other graded work, from LGRT 212 during TA office hours. The average on the exam was 77.6 (yay!), and 24 people scored 90 or above (double yay!). Here is a histogram of how people did overall:

If you scored under 60 you should probably come see me during office hours so that I can make certain you are keeping up with all the rest of the work.

Monday, September 29, 2014

It's official: the midterm will be held the evening of Thursday, October 16, from 7:00pm to 9:00pm, in Totman Gym. The make-up exam for people with legitimate excuses will be held in the evening of Monday, October 20, also from 7:00pm to 9:00pm, in LGRT 121 The form for requesting a make-up exam will activate on October 6.

Monday, September 22, 2014

Lab #1 Due This Week

Remember that lab #1 is due this week. You may turn it in in-class, or bring it by the TA office (LGRT 212) before 5:00pm Friday. Remember as well that there are TAs holding office hours in LGRT 212, and there are evening help-lab sessions in DuBois 1685 (side room) Tuesday through Thursday, 5:45pm-7:15pm. If nobody shows up in the first 15 minutes or so of the lab period the TA is free to leave.

Talking to the Server

For labs #2 and #3 you will need access to our server:

  • The host address is elsrv3.cs.umass.edu
  • Your username is the same as your UMail username
  • Your password will initially be ELxxxaaa, where xxx is the last three digits of your student ID and aaa is the first three letters of your username.

For example, if Fred Smith has username fsmith and student ID number 12345678, then his initial password would be EL678fsm (with uppercase and lowercase as shown). We'll use this username and password in all the following examples.

Telnet for Windows PC users

In the OIT lab in DuBois 1685 use the PuTTY program, which is already installed. Do not attempt to download or install it yourself.

At home, PC users need to download a program called PuTTY to their computer. Go to the main site, click on the Download tab, and download putty.exe to your desktop. It is the upper left link on the download page. There is no installation for this program, but you should scan it for viruses. Run it.

  • In the Host Name box of the opening dialog place the host name: elsrv3.cs.umass.edu
  • Verify that the SSH radio button is set.
  • Click the Open button.
  • When the server responds (black screen) with login as: type in just your username. (Fred Smith would type in fsmith)
  • When the server asks for the password, type it in. THE PASSWORD WILL NOT ECHO TO THE SCREEN. (Fred Smith would type in EL678fsm)
  • You should now be connected to the server and can give it commands.
  • At the end of your session, type logout to drop the connection to the server and close the PuTTY window.

Telnet for Mac users

Mac users do not need to download a program to their computer for this step. Go to Finder-Applications-Utilities and run the Terminal application.

  • At the Terminal command line, type ssh, a space, your username, an at-sign, and the host address. (Fred Smith would type ssh fsmith@elsrv3.cs.umass.edu)
  • When the server responds (white screen) and asks for the password, type it in. THE PASSWORD WILL NOT ECHO TO THE SCREEN. (Fred Smith would type in EL678fsm)
  • You should now be connected to the server and can give it commands.
  • At the end of your session, type logout to close the connection to the server and return to the Terminal command line.
  • Type logout again to close the Terminal program.

Changing Passwords

When you first log in, via PuTTY on the PC or via ssh through Terminal on the Mac, the first thing the server will demand is that you change your password. It will first demand that you enter your OLD password (the one you just used for logging in), before it will ask for the new one, which it will do twice.

Change your password to something containing digits and both upper and lower case letters, with no sequences or dictionary words (for example "frog1234" is a bad password because is contains both a dictionary word and a sequence). If you forget your password I cannot retrieve it for you, but I can set it back to the initial ELxxxaaa default for you if you send me an email asking me to do so.

FTP for Windows PC users

In the OIT lab in DuBois 1685 use the WinSCP program, which should be already installed. (There may be another tool available instead of WinSCP.) Do not attempt to download or install it yourself.

At home, PC users need to download and install a program called WinSCP. Go to the main site and download the WinSCP 5.5.5 (or later) Installation Package. WARNING: This site has an advertisement linked to a software package with a big DOWNLOAD button -- DO NOT CLICK THE DOWNLOAD BUTTON! Click the link to Installation Package (sponsored) instead. Once the package has been downloaded, install it. Accept all the default settings during the installation that pertain to WinSCP (turn off any options to install other software). Run it. In the WinSCP Login of the opening dialog place the following items:

  • Host name: elsrv3.cs.umass.edu
  • User name: your user name (Fred Smith would type in fsmith)
  • Password: your password (Fred Smith would type in EL678fsm), password will appear as dots.
  • Click the Login button.

FTP for Mac users

Mac users need to download and install a program called Fugu. Go to the main site, and click the Download link. Download and install the latest version Fugu-1.2.1-pre1.zip for Mac OS/X 10.5 (Lion) and later. This package may or may not work with OS/X 10.9 (Mavericks); if that is the case let me know and we'll try to find a more recent program for you.

  • In the Connect to: box put the Host name: elsrv3.cs.umass.edu
  • In the Username: box put your user name (Fred Smith would type fsmith)
  • Leave Port: and Directory: boxes blank.
  • Click the Connect button
  • When the password box appears, type your password (Fred Smith would use EL678fsm), password will appear as dots.
  • Click the Authenticate button.

Warning!

WARNING #1: If you are attempting to log in to the elsrv3.cs.umass.edu server using any of the telnet or FTP tools and FAIL six times, the server will lock out your IP address for at least 24 hours. It thinks you are trying to break in! If this happens to you, you will get a message such as "Server unexpectedly closed connection" or something about "ssh-exchange-identification". You can then attempt to log in from another machine (on a different IP address) or you can wait until the server clears yours to try again.

WARNING #2: If you attempt to log in from a public wireless hotspot such as the Campus Center, please remember to first log in to OIT's wireless through your Web browser BEFORE attempting to connect to our server. If you aren't connected to the OIT wireless network, neither PuTTY nor WinSCP nor ssh nor Fugu will work.

WARNING #3: If you are using a wireless hotspot and close the lid on your laptop, you will be breaking the connection to the wireless access point. If you do this while connected in via PuTTY, Terminal, Fugu, or WinSCP, that connection is also broken. Re-opening the lid, particularly if you move to another hotspot, won't automatically re-establish your telnet or ftp session - you'll have to log back in to the wireless hotspot and connect again.

Thursday, August 29, 2014

Happy New Year! Welcome to all new incoming students, and welcome back to everybody else! This is the main Web page for CMPSCI 105 (Computer Literacy). Check back here throughout the semester for news and updates pertinent to the class. Here are a few tidbits to get you started.

Enrolling

Normally, there are two sections of CMPSCI 105, one at 11:30am and the other at 4:00pm. This semester only (Fall 2014) there will be no 4:00pm section, as I will be co-teaching a new course. I will be going back to two sections of CMPSCI 105 in Spring 2015, so anyone who cannot get a seat now will likely get one next semester.

Anyone looking for another computer class this semester may wish to consider:

  • CMPSCI 120 (Problem Solving with the Internet), which meets at 11:15am on Mondays, Wednesdays, and Fridays in Morrill N375.

  • CMPSCI 119 (Introduction to Programming in Python), which meets at 1:25pm on Mondays, Wednesdays, and Fridays in Lederle Tower LGRT 123.

  • CMPSCI 190IN (Introduction to Informatics), which meets at 4:00pm on Tuesdays and Thursdays in ELAB 323. There is still lots of space in that course. This is part of the new Informatics major! Ask me for more information!

In the Spring 2015 semester I will teach both 105 and 119, but CMPSCI 145 instead of 120.

CMPSCI 105, CMPSCI 119, CMPSCI 120, and CMPSCI 145 all fulfill requirements for the IT (Information Technology) minor. If you are interested in the minor, please see me for more information.

Books

The books, available in the Textbook Annex or directly from Kendall/Hunt Publishing, Co., are:

  • Computer Literacy Workbook, 21ST edition, 2014-2015 printing, (RED cover).
  • Computer Science Companion, 1ST edition, 2014 printing, (CYAN cover).

DO NOT buy any older edition of the Workbook with any other color cover! The Workbook is in three volumes and has had updates to the material from last year, especially the lab assignments. All lab assignments are compatible with Office 2007-2013 for Windows and Office 2011 for the Mac, with two exceptions that must be performed on Windows (Neither Office for Mac 2008 nor Office for Windows 2010 Starter Edition will work for this course).

YOU CANNOT USE LAST YEAR'S BOOK!!


If you take any of my other classes, I strongly recommend that you hang onto these books. There is some overlap, and I think you will find it helpful in these other classes. In particular, the Computer Science Companion is required for my other classes.

Lecture #1

For any student who cannot attend the first class, here is a direct link to a .PDF file of the Syllabus (see also the link to the Syllabus at the bottom of this page), and here is a link to a .PDF file of the first lecture. It is an expanded outline version of the first lecture, with enhancements not covered in class but important nonetheless, in Adobe Acrobat .PDF format. If you do not have Acrobat Reader installed on your computer, go here.

Assignments

Day-to-day work falls into three categories: quizzes, homeworks, and labs:

Quizzes are held in-class at the beginning of lectures. The schedule for when quizzes will happen is on the syllabus, but I reserve the right to throw a pop-quiz from time to time. You are allowed to bring your books, notes, computer, and calculator to the quizzes (but no electronics are allowed at the midterm and final exams). You keep all the points you earn from all the quizzes you take, but I compute the quiz score as if there were two fewer quizzes. This way you can miss up to two quizzes without penalty, and it is possible to get extra credit if you take all quizzes. Quizzes may not be made up, but the "miss two" rule is there to absorb circumstances where you must be away from campus (illness, travel, etc.).

Homeworks are performed on-line from any machine connected to the Web, at your convenience (subject to due dates, of course). Paper copies of most homeworks are found in volume 3 of the Workbook, so you can get an idea of what is coming, but all homeworks are submitted electronically. Homeworks may be submitted as many times as you wish - if you do not like your score on a particular homework, back up and try again.

Lab assignments are in volume 3 of the Workbook, and are to be performed on your own equipment at your own speed, subject to the due dates. Lab reports are turned in on paper, either to me in class or to the TAs in LGRT 212 . If you do not have the proper hardware or software to do a particular assignment, you may use any Windows PC lab on campus run by OIT. All necessary software is already installed. Our TAs will be in DuBois Library 1685 (side room) Monday-Thursday, 5:45pm-7:15pm, to help with lab assignments. (Do NOT use lab times to ask for help with homeworks - use TA office hours for that.)

Midterm Exam

The midterm exam will likely be scheduled for the evening of Thursday, October 16TH from 7:00pm to 9:00pm. THIS DATE MAY CHANGE. The rooms will be announced as the date gets closer. For people with a legitimate reason for missing the regular exam time, there will be a form to fill out to request taking the make-up exam on Monday, October 20TH at the same times in the evening. That make-up request form will be available on-line in late September or early October.

Academic Honesty

Do your own work, including homework and lab work. You may discuss homework and lab assignments with other students, but you may not share files or disks. Term papers must not be plagiarized, and will be scanned using on-line software to detect duplication. Upon discovery of any infraction, I will contact you for a conference, as required in the guidelines set out by the University of Massachusetts Academic Honesty Policy, and we will resolve the issue according to those guidelines.

Pictures of Important Stuff

Previous Semester's Scores

To see how previous classes fared, here are histograms from previous semesters:

Previous Semester's Exams

For reference, here are some links to previous semesters' midterms and final exams, all in Adobe Acrobat (.PDF format):

Social Networking

While I have a Facebook account, I reserve its use strictly to personal friends (high-school comrades, hiking buddies, etc.). Please DO NOT "friend" me on Facebook or Linked-In; all such requests will be ignored.

You may, however, follow me on Twitter if you wish. My posts, although infrequent, will be primarily math and science based.






On-Line Quizzes, Forms, and Homeworks Data for lab assignments
Dr. Bill's Office Hours Teaching Assistants Office Hours
Description of CMPSCI 105 (1.2 Meg) Some fun (free) PC software I wrote
Syllabus and Handbook General Education Statement
Send Email to Dr. Bill Running Windows Software on a Mac
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