CET Graduation Level 2024 | CET Computer | CET Computer MCQs #1 | By Deepraj Sir

Utkarsh Classes・2 minutes read

The CET exam for graduation in 2024 will consist of MCQs only, and the CPU's functions include data processing, storage, and logical operations. SATA slots on the motherboard connect the HDD, with SCSI being a type of connection for the HDD.

Insights

  • The CPU, or central processing unit, is a crucial component of a computer, consisting of the ALU, CU, and Register. The ALU performs arithmetic and logic calculations, the CU manages data movement, and the Register serves as temporary memory.
  • Various types of memory exist in computers, including volatile (like RAM) and non-volatile (like ROM, hard disks, CDs, DVDs, and pen drives), with firmware being a set of programs for read-only purposes. This distinction is essential for understanding how data is stored and accessed in computing systems.

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Recent questions

  • What are the main functions of a computer?

    Data collection, storage, output, and publishing.

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Summary

00:00

Computer Basics: CPU, HDD, and Connections

  • The CET exam for graduation in 2024 will consist of MCQs only, and preparation should focus on mastering MCQ-solving techniques.
  • The computer's main functions include data collection, storage, output, and publishing, with the CPU performing logical operations.
  • The CPU comprises three parts: ALU, CU, and Register, with ALU handling arithmetic and logic calculations, and the Register serving as temporary memory.
  • The CPU's control unit manages data movement, while the ALU executes logical calculations, and the Register stores data temporarily.
  • The world's first computer, ENIAC, was created in 1946, marking the beginning of computer generations, with the CPU's ALU performing logical calculations.
  • ENIAC stands for Electronics Numerical Integrator and Computer, and the hard disk drive (HDD) connects to the motherboard via SATA slots.
  • SATA slots on the motherboard are used to connect the HDD, with four slots available for connection.
  • The full form of SCSI, a type of connection for the HDD, is Small Computer System Interface, and the new version is Serial Attached SCSI (SAS).
  • To connect the HDD to the motherboard, SATA slots are used, with the answer being SATA for the question posed.
  • The USB port is where the pen drive is inserted for connection to the computer.

15:03

Computer Hardware Components and Data Exchange Basics

  • The slot on the motherboard where the pin is inserted is the same.
  • The slot on the board that holds the hard disk is identified.
  • Data exchange between memory and memory is directed.
  • The structure of the computer, explained by Newman, focuses on the CPU, ALU, and registers.
  • The different types of wires on the motherboard are address, data, and control buses.
  • The wires between the CPU and RAM are specifically for addressing.
  • The data bus connects the CPU to other hardware like keyboards and monitors.
  • The control bus is also linked to the CPU and other hardware components.
  • Integrated circuits (IC) chips in computers are made from semiconductors like silicon.
  • Text and other data are temporarily stored in the clipboard before being pasted elsewhere.

30:28

Computer Shortcuts, Voltage Conversion, and Microprocessors

  • Shortcuts for writing and deleting text are Shift and Control Insert, respectively.
  • Few people know the shortcut for inserting text with Shift.
  • Verifying the practicality of these shortcuts is recommended.
  • Two shortcuts exist for each function, providing options for users.
  • The need for DC voltage in electronic devices is highlighted.
  • AC voltage in homes necessitates the conversion to DC for electronics.
  • Rectifier filtering, commonly known as an adapter or charger, converts AC to DC.
  • Mobile and laptop chargers exemplify the conversion of AC to DC for devices.
  • SMPS stands for Switched Mode Power Supply, converting AC to DC for computers.
  • Supercomputers' processing speed is measured in flops, with ISRO's Saga 220 being an example.
  • WYSIWYG refers to the accurate representation of printed documents on screen.
  • The five generations of computers are detailed, with the current fifth generation utilizing UL SI.
  • Errors in software are termed bugs, with debugging being the process of rectifying them.
  • Grace Hopper's contributions to computer science, including COBOL and bug terminology, are highlighted.
  • The GIGO principle emphasizes the importance of accurate input for correct output in computing.
  • Microprocessors, also known as CPUs, are crucial components in computers, with various companies producing them, such as Intel.

46:58

"CPU Companies, Supercomputers, and Programming Basics"

  • Intel is a company known for its CPUs, with the MD also being the MD of the CPU.
  • The name of the CPU company in question is Ryzen.
  • Intel's full form is Integrated Electronics, which stands for Integrated Learning.
  • India's fastest supercomputer is Airavat, powered by a CPU from Advanced Micro Devices.
  • When buying a mobile, it's recommended to opt for a Snapdragon CPU.
  • India's first CPU, Shaktiman, was created by IIT Madras.
  • The basic programming language is used to teach software creation.
  • ASCII is a method that converts keyboard inputs into binary signals.
  • ASCII stands for American Standard Code for Information Interchange.
  • Jack Kilby discovered the Integrated Circuit (IC), leading to the creation of the first mini computer and supercomputer.

01:02:26

"Musical instruments, MIDI, memory, software, printers explained"

  • Different types of musical instruments like guitar, tabla, and drums are mentioned, including electronic versions.
  • MIDI devices and slots, referred to as MIDI ports, are crucial for connecting musical instruments.
  • The full form of MIDI is Musical Instrument Digital Interface, which is essential for connecting electronic instruments.
  • The process of copying files to CDs is explained, known as burning, involving aluminum layers and laser lights to write data.
  • CDs and DVDs have a diameter of 12 centimeters and are made of plastic with aluminum layers for data storage.
  • Permanent memory in computers is discussed, distinguishing between temporary and permanent memory types.
  • Volatile and non-volatile memory types are explained, with examples like ROM, hard disks, CDs, DVDs, and pen drives.
  • Firmware is defined as a set of programs entered into a computer during construction for read-only purposes.
  • System software, utility software, and application software are differentiated, with examples like Android operating system and Excel.
  • Printer quality is measured in DPI (dots per inch), with higher DPI indicating better quality, while speed is measured in PPM (pages per minute), determining the number of pages printed in a minute.

01:20:23

Evolution of Printers and Excel Functions

  • Impact printers have been phased out, with modern printers being non-impact. An example is the dot matrix printer, which can be used to display cell contents in MS Excel, where columns are represented by alphabets and rows by numbers, with their intersection being a cell.
  • In Excel, the name of a cell is displayed in the name box, while its value is shown in the formula bar. The cursor in Excel, known as the Big Plus or Doctor Plus, is used to select cells, with the Big Plus indicating the ability to select cells.
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