Basic of UNIX & File System Quiz

Purpose of Operating Systems

• Primary function is to manage computer hardware and software resources.
• Provides a user interface for interaction between the user and the computer.

Historical Systems

• Single-user, single-process systems were used primarily in early computing, allowing only one user to run one process at a time.

Multi-User Systems

• Commonly utilized in organizational settings to support multiple concurrent users accessing resources and applications.

User Functionality

• Operating systems enable users to run applications, manage files, and perform various tasks efficiently.

UNIX Command History

• The command !! can be used to recall the last executed command in UNIX.

Windows 95

• Examples of a single-user, multi-tasking system designed for personal computing.

Multi-User Capability in UNIX

• Multi-user systems in UNIX allow multiple users to access the system simultaneously, sharing resources and processes.

UNIX Programming Language

• Primarily written in the C programming language, offering portability and efficiency.

Role of the UNIX Shell

• Acts as a command-line interface, interpreting user commands and managing system interactions.

SSH Functionality

• Secure Shell (SSH) provides encrypted communication for remote login and command execution on UNIX/Linux systems.

Use of PuTTY

• A terminal emulator used to remotely connect to UNIX systems, enabling secure communication via SSH.

Logging onto a UNIX System

• The primary purpose is to authenticate users, allowing access to system resources and personal files.

C Language Benefits for UNIX

• The C language enhances system performance, facilitates easier modifications, and supports low-level programming needs.

IP Address Purpose

• In UNIX, an IP address identifies a device on a network, enabling communication between different systems and services.