π» Hardware refers to the physical components of a computer that can be touched.
β‘οΈ Hardware uses electrical signals to carry out instructions given by programs.
π’ Binary is the language of computers, representing numbers using only zeros and ones.
π» Computers manipulate numbers using binary representation.
π’ Binary instructions are used for computer operations.
π Bytes store digital data, including letters and songs.
π’ All hardware is built using logic gates, which process binary signals and emit electrical signals based on logical operations.
β‘οΈ Logic gates, such as AND gates, can combine binary signals to simulate addition, subtraction, and multiplication.
π» Computers perform operations on binary data using logic gates to carry out mathematical computations.
π‘ Binary information is represented using electrical signals: high voltage for one, low voltage for zero.
π₯οΈ Three main hardware components in a computer: memory, motherboard, and central processing unit (CPU).
π There are two types of memory: main memory and external memory, with different functions and speeds.
π‘ RAM stores the currently running applications and their data, while read-only memory holds important information and the BIOS.
πΎ External memory, such as CDs, USB drives, hard drives, and floppy disks, is used for long-term storage.
π The motherboard is the main component that connects all the hardware components of a computer.
π» The motherboard is responsible for connecting all the different parts of a computer, including the processor, memory, input, output, and storage.
β° Computers have an internal clock that is constantly cycling, and the motherboard generates the clock signal for the CPU.
π§ The CPU, or central processing unit, executes the instructions of the program and performs the number crunching.
π₯οΈ Hardware is an input device that sends electrical signals to the CPU, allowing the computer to perform calculations and execute commands.
π¨οΈ The CPU accesses the printer's device driver to prepare the printer for printing, and then sends an electrical signal containing the necessary information to the printer.
π» This example highlights how hardware components work together to carry out tasks, such as printing a document.
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