Assalam Alaikum, how are you? I hope you are all well. Let me tell you about the computer and its hardware.
Explain the purpose of joystick? Joystick. Q is a pointing device consisting of a base and a stick. The stick can be moved in any direction to move an object around the computer screen. It also has some buttons. Buttons are used to perform various actions in games like jumping or shooting. A joystick is commonly used to play computer games.
Q. What is a mouse? Describe its functions. Mouse The mouse is the most commonly used pointing device. It is a small and lightweight input device. It is used to enter instructions with a pointer on the screen. The mouse is moved on a flat surface to control the movement of the cursor or pointer. It is connected to the computer through a cable or wireless connection. The mouse is very easy to use. It is mostly used in graphics applications. A mouse usually has two or three buttons. These buttons are used to perform various tasks such as selecting an item or opening a program. It may also include a scroll wheel for scrolling long documents. A traditional mouse has a small ball on the bottom. The movement of the cursor depends on the movement of the ball. An optical mouse uses light reflection instead of a ball to control pointer movement.
- Input Devices Anything given to the computer such as data or instructions is called input. Input devices are used to enter data and instructions into a computer. These devices send this data to the processing unit. The most commonly used input devices are keyboard and mouse.
Processing Device A processor is used to process data. It is also called Central Processing Unit (CPU). It is the brain of the computer. It consists of an electronic circuit. CPU interprets and executes program instructions. All computers must have a central processing unit. Main memory is used to store data and instructions that are executed by the CPU. It also keeps the processing results. It stores data and instructions temporarily. Main memory is closely related to the CPU but is separate from it. Storage Devices Storage generally refers to secondary storage. Storage devices are used to permanently store data, programs and information. The most common storage devices are hard disk drives, USB flash drives and optical discs such as CDs and DVDs.
@ All the pictures are capture by me
@ Allah Hafiz