Computer Basics Quiz

The primary function of a computer mouse is to move the mouse pointer on the screen.

A mouse can select multiple files by highlighting them and using the drag-and-drop method.

The drag-and-drop method involves selecting an object and moving it to a different location using the mouse.

<p>Clicking or double-clicking an icon opens a document or executes a program.</p> Signup and view all the answers

<p>The mouse wheel is used to scroll through long documents or web pages.</p> Signup and view all the answers

<p>A touchpad can serve the same function as a computer mouse on laptops.</p> Signup and view all the answers

<p>A scanner optically reads an image and converts it into a digital signal.</p> Signup and view all the answers

<p>'Hovering' allows the user to discover the function of an object by moving the cursor over it without clicking.</p> Signup and view all the answers

<p>Output devices convert binary code into human-readable form.</p> Signup and view all the answers

<p>The CPU is called a microprocessor because it is an electronic device built on a microchip, which is a tiny silicon-based chip.</p> Signup and view all the answers

<p>The CU fetches, decodes, and executes instructions while issuing control signals.</p> Signup and view all the answers

<p>The ALU performs arithmetic operations and logical operations.</p> Signup and view all the answers

<p>Registers store small amounts of high-speed data needed during processing.</p> Signup and view all the answers

<p>The program counter keeps the address of the next command to be processed.</p> Signup and view all the answers

<p>The ALU acts as a gateway because it handles data transfers between primary memory and secondary storage.</p> Signup and view all the answers

<p>The MAR maintains the address of items going to be written to or read from memory.</p> Signup and view all the answers

<p>To retrieve information from a magnetic card.</p> Signup and view all the answers

<p>It converts hand drawings into digital images using a stylus.</p> Signup and view all the answers

<p>Sound input, which is then stored digitally.</p> Signup and view all the answers

<p>It interprets spoken commands and dictation instead of manual input.</p> Signup and view all the answers

<p>They offer greater control and flexibility in the drawing process.</p> Signup and view all the answers

<p>A magnetic card must be physically close to or swiped through it.</p> Signup and view all the answers

<p>It allows machines to understand and execute spoken instructions.</p> Signup and view all the answers

<p>It displays the drawing on a computer screen.</p> Signup and view all the answers

<p>The control unit requests instructions from the main memory based on the current location indicated by the program counter.</p> Signup and view all the answers

<p>In the decode stage, received instructions are broken down into components based on the operation code (opcode) in the instruction register.</p> Signup and view all the answers

<p>The program counter indicates the next instruction to be executed and increments after each instruction is processed.</p> Signup and view all the answers

<p>Storing the result in main memory allows it to be accessed later by other instructions or processes.</p> Signup and view all the answers

<p>The motherboard connects the CPU, memory, storage drives, and other components, serving as the backbone of the computer.</p> Signup and view all the answers

<p>A metallic electrically conductive and resistive layer.</p> Signup and view all the answers

<p>The address bus is used by the CPU to send memory addresses or I/O port locations, operating in a unidirectional manner from CPU to the specified location.</p> Signup and view all the answers

<p>It can be damaged by sharp objects touching the screen.</p> Signup and view all the answers

<p>The maximum number of accessible memory locations is determined by the number of lines in the address bus.</p> Signup and view all the answers

<p>It uses ultrasonic waves to detect touches.</p> Signup and view all the answers

<p>Executing instructions in sequence as indicated by the program counter ensures that programs run correctly and logically.</p> Signup and view all the answers

<p>It is more advanced and can detect lighter touches.</p> Signup and view all the answers

<p>It generally has lower manufacturing costs compared to capacitive touch screens.</p> Signup and view all the answers

<p>Outside elements, such as dust or water.</p> Signup and view all the answers

<p>It detects the pressure of a finger or object on the screen surface.</p> Signup and view all the answers

<p>It does not work well with hard materials.</p> Signup and view all the answers

<p>The data bus carries data and instructions between the CPU, memory, and peripheral devices.</p> Signup and view all the answers

<p>The size of the data bus influences parameters such as word size and the amount of data that can be processed.</p> Signup and view all the answers

<p>The control bus carries synchronizing signals for operations like memory read, memory write, and I/O operations.</p> Signup and view all the answers

<p>A keyboard allows users to input letters, numbers, and symbols into a computer, functioning similarly to an electric typewriter.</p> Signup and view all the answers

<p>The QWERTY layout, designed by Christopher Sholes, became the official standard for computer keyboards and is named after the first six letters in the top row.</p> Signup and view all the answers

<p>Before USB, keyboards commonly used PS/2, serial port, or AT (Din5) interfaces.</p> Signup and view all the answers

<p>A keyboard comprises buttons for letters, numbers, symbols, and additional function keys.</p> Signup and view all the answers

<p>Different microprocessors have distinct control signals designed to meet the requirements of their specific architectures and connected devices.</p> Signup and view all the answers