UNIX and the Internet

1. 2-3 sentences, define each of the following terms as they relate to UNIX and the Internet: a) Port b) Client c) IP address d) Server e) Protocol f) Nslookup g) Usenet h) Traceroute i) lynx j) ftp 2. What is the importance and/or use of the program Telnet? 3. My co-worker Mark and I both regularly use our mainframe UNIX system. I've fingered him, and know that he's logged on. While I do not want to have a conversation with him, instant messenger with him, or send him an email, I would like to send him a short message to meet for a break at 2:00. From within the UNIX system, and without using the mail command, is there a utility that would allow me to do this? ... click for more

Mainframe UNIX system

4. I was recently working on our mainframe UNIX system, and suddenly I received a message that the server needed to be rebooted on my screen. I asked around and everyone in my department got the same message. How did our UNIX administrator distribute this message to all of people logged into the system at the time, without using the mail command or another email program? 5. My roommate and I were working on a big assignment for our programming class. He was in the library, and I was across campus in our room. We're both working off of the campus UNIX server. Is there a UNIX utility we could use, besides email or IRC, to chat back and forth? How does it work? 6. Use the web browser ly... click for more

Operating Systems

What are the fundamental differences between Windows, Mac OS, UNIX, and Linux operating systems for personal computers? What unique characteristics do mainframe operating systems have? Post 200-300 word. Thanks.

Bead Bar Consultant

Imagine that you acting as an IT consultant for them. What software solutions would you recommend to your executives based on their needs? Explain your answer. Meredith (President and Owner) “My main concern is understanding how software will help the company so that I can make an informed investment decision. In addition, I want to be sure my company does not commit software piracy.” Mitch (VP of Bead Bar on Board) “I need software I can use on my handheld computer. I think that contact management software would help me keep track of my sales prospects.” Just 50 to 75 words per solutions. Thanks for your help!

Binary and general semaphores

What is the difference between binary and general semaphores? Stallings