Lab 1 INTRO TO LINUX

                                                        Lab2 ->

Windows :

Microsoft Windows is a graphical operating system developed and published by Microsoft. It provide a way to store files, run softwares, play games, watch videos, and connect to the internet. Windows is the most common in operating system and user-friendly with interacting icons.

MacOS :

MacOS is the operating system developed by Apple Inc. The MacOS contains graphical user interface GUI system and used in apple products. MacOS feature in security and expensive in product.

Linux :

Linux is a open source operating system created by Unix. Linux is software that sits underneath all of the other software on a computer, receiving requests from programs and relaying request to the computer's hardware. Linux is popular for programming-based users.

4. Nazri is a technical officer of All Technologies SDN BHD, he suspected someone has been used his computer and he want to check whether true or not. He using windows 7 Ultimate Edition. How can you help him? Please give detail step.

    Step 1 : Search for Event Viewer in window search bar

 

   

            Step 2 : Under the dropdown menu, press Windows Logs -> System

    

    Step3 : Sort the Date and Time by newest to oldest, then press ctrl + F and Find for winlogon

    *For example, the lastest window log on is 10:40AM, press Find Next to next older log on until found suspicious log on time.

5. Azam using UniMAP computer library. Suddenly, he get this error. What are he trying to do? Any idea to solve this problem? 

(Resource and Performance Monitor prompt "The requested operation requires elevation")

-He is trying to look into the activities on the computer such as CPU or memory usage.

    First solution is to Sign In to the windows with Administrator account to gain full access to the Resource and Performance Monitor.

    Second solution is to Run the Resource and Performance Monitor with administrator or as a root user.

6. “top” is not recognized as an internal or external command, operable program or batch file.” Zafirah try to get show process on terminal but get an error message. Why this happen? How to use this command?

Solution : Zafirah has use Linux OS code and run it on Windows, so it prompt “top” is not recognized as an internal or external command, operable program or batch file.” on window command prompt.

To get "top" in window, Zafirah can use command "tasklist" in window command prompt.

7. Iskandar is a Windows system administrator sent print screen from his computer. What are information he provided. What type of operating system that he used? What type of command line he used?

Solution: He is using Window PowerShell with command line "Get-Service | Get-Member"

8. Suhaila are Ubuntu user. However he can’t explain information given from gnome-terminal. Please brief detail about the information given.

-Command line : "free -m"

-For memory, the system has a total memory of 3822mb: used up 1999mb and has 1822mb free. 

- There are also 0mb shared memory used by tmpfs and 146mb kernel buffers and 1004mb for cached memory used for page cache and slabs .

- The -/+ buffers/cahce show the sum of buffers and cache

- The Swap memory has total 2001mb: 0 mb used + 2001mb Free. Swap memory only used when lack of memory avaliable.

9. Open terminal and type command line "less /proc/cpuinfo" 

        Output :

- FPU is "Floating Point Unit" which is a part of processor that perform floating point calculation.

- PAE is "Physical Address Extension" which is part of processor that enable x86 processors to access more than 4 GB of physical memory.

10.  Lisa open terminal and type “lscpu”. That actually she what to do?

- lscpu is used to display all the CPU architecture information from stsfs and /proc/cpuubdi that are readable by the users.
 - So, she is trying to check the CPU architecture of the computer like information about number of CPUs, threads, cores and etc.

11.  “dmesg grep | -i usb”. Please brief detail about the information given.(answer with screenshots).

        - actual command is "dmesg | grep -i usb"

*since I am using VMware for linuxmint, the USB shows VMware virtual ports

- This interface shows that my computer has USBcore, USB1 and USB2. It also show what is that product and manufacture name of that USB port. It show mostly all the detail of the USB ports in my computer and their status.

12) Which is the core of the operating system? 

        a) Shell b) Kernel c) Commands d) Scrip

 Answer : b) Kernel

- Kernel is a computer program at the core of a computer's operating system that has complete control over everything in the system. It is the "portion of the operating system code that is always resident in memory", and facilitates interaction between hardware and software components.

- END OF LAB 1 -