Self-assessment quiz

--- secondary_color: lightgray --- # What is a computer? What is a computer? - [ ] A device that performs only arithmetic operations. - [x] An electronic device that can be programmed to carry out sequences of arithmetic or logical operations. - [x] A machine that follows a set of instructions (program) stored in its memory. - [ ] A mechanical device that was used in the 19th century. # What is a computer? What are the main components of a CPU? - [x] Control Unit (CU). - [x] Arithmetic Logic Unit (ALU). - [ ] Random Access Memory (RAM). - [x] Registers. # What is a computer? Which of the following are characteristics of RAM? - [x] Volatile memory. - [x] Fast access speed. - [x] Temporary storage for data and instructions. - [ ] Persistent storage like HDD/SSD. # What is a computer? Which of the following architectures store instructions and data in the same memory? - [x] von Neumann architecture. - [ ] Harvard architecture. - [ ] Modified Harvard architecture. # What is a computer? What are the benefits of multi-core processors? - [x] Improved performance through parallel processing. - [x] Enhanced multitasking capabilities. - [ ] Simplified programming and software development. - [x] Increased energy efficiency.

--- secondary_color: lightgray --- # The operating system What was one of the main innovations in early operating systems during the 1960s? - [ ] Batch processing. - [x] Time-sharing systems. - [ ] Multithreading. - [x] Multi-user environments. # The operating system Which of the following are key features of the Unix operating system developed in the 1970s? - [x] Portability. - [x] Multiuser and Multitasking. - [ ] Graphical User Interface (GUI). - [ ] Integrated Web Browser. # The operating system What is the role of the kernel in an operating system? - [x] Managing system resources like CPU and memory. - [ ] Providing a graphical user interface. - [x] Handling process management and inter-process communication. - [ ] Facilitating user interaction through command-line or GUI. # The operating system Which components are commonly found in modern operating systems? - [x] Kernel. - [x] Shells (command-line or graphical). - [ ] Integrated Development Environment (IDE). - [x] Daemons or Services. # The operating system Which of the following accurately describe the function of a bootloader in the operating system's boot sequence? - [ ] Checks the system's hardware components for errors. - [x] Loads the operating system kernel into memory. - [x] May provide a menu for selecting different operating systems. - [ ] Manages user authentication.

--- secondary_color: lightgray --- # The terminal What is the primary function of a terminal? - [x] To interact with the operating system using commands. - [ ] To display graphical user interfaces. - [x] To execute command-line instructions. - [ ] To run graphical applications directly. # The terminal Which of the following commands are used to navigate directories in a terminal? - [x] `cd`. - [ ] `ls`. - [ ] `pwd`. - [ ] `mkdir`. # The terminal What is the role of the `ls` or `dir` command in a terminal? - [x] To list the contents of a directory. - [ ] To change the current directory. - [ ] To remove a directory. - [x] To view files in the current directory. # The terminal Which of the following are correct uses of pipes (`|`) in a terminal? - [x] To send the output of one command as input to another command. - [ ] To copy files between directories. - [x] To chain multiple commands together. - [ ] To navigate between directories. # The terminal Which commands are commonly used to manage files and directories in a terminal? - [x] `cp`. - [x] `mv`. - [ ] `echo`. - [x] `rm`.