Computer I THS Test - 01

General Test Information

• Duration: 75 minutes
• Maximum Marks: 75
• Total Questions: 75
• Scoring: 1 mark for each correct answer; 0.25 marks deducted for each incorrect answer
• At the end of the test, correct answers and submitted answers will be displayed

Key Computer Concepts

• Father of Computer: Charles Babbage is recognized as the father of computer science.
• Invention of Electronic Computer: Tommy Flowers invented the electronic computer.
• Function of Assembler: Converts assembly language into machine language.

Communication Modes

• Full Duplex: Allows data communication in both directions simultaneously.
• Half Duplex: Supports communication in both directions but not at the same time.
• Simplex: Permits data flow in one direction only.

Hardware Generations

• First Generation Hardware: Utilized vacuum tubes.
• Transistors: Used in the second generation of computers.

Storage Media

• Sequential Access: Magnetic tape allows only sequential access.
• Permanent vs Temporary Storage: ROM retains information after shutdown; RAM does not.

Computer Operations

• I/O Operations: Involves entering data into a program and receiving output.
• CPU Functions: Often referred to as the brain or processor of the computer, responsible for executing instructions.

Computer Components

• Physical Components: Known as hardware, including CPU, memory units like ALU.
• Device Types: Speakers and headphones are output devices; digital cameras are input devices.

Software and Commands

• Basic Input Devices: Commonly include keyboard and mouse.
• Command Definitions: A command is a set of instructions given to the computer.

Computer Memory

• Smallest Unit: The smallest unit of data in a computer is a bit.
• Temporary Output: Soft copy refers to temporary outputs displayed on screens.

Other Key Terms

• USB: Stands for Universal Serial Bus.
• GNU Operating System: Significant in open-source discussions; details on this need careful review for correctness.

Applications of Computers

• Hospital Usage: Computers are used for diagnosing, admitting, and maintaining patient records.
• Robotics Utilization: Primarily used in manufacturing and related fields for automation.

Additional Computer Science Concepts

• BIOS Role: Critical for initializing hardware during the booting process.
• Storage Devices: Hard Disk Drives exemplify magnetic storage devices.
• Operating Systems: DOS supports only one program at a time.

These notes encapsulate essential facts about computer fundamentals, hardware, software, and applications, catering to students preparing for a computer test.