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2. Computer hardware - Wikipedia

   en.wikipedia.org/wiki/Computer_hardware

   Computer hardware includes the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case. It includes external devices such as a monitor, mouse, keyboard, and speakers. [1] [2]

3. Peripheral - Wikipedia

   en.wikipedia.org/wiki/Peripheral

   A peripheral device, or simply peripheral, is an auxiliary hardware device that a computer uses to transfer information externally. [1] A peripheral is a hardware component that is accessible to and controlled by a computer but is not a core component of the computer.

4. External storage - Wikipedia

   en.wikipedia.org/wiki/External_storage

   Today the term external storage most commonly applies to those storage devices external to a personal computer. [5] The terms refer to any storage external to the computer. Storage as distinct from memory in the early days of computing was always external to the computer as for example in the punched card devices and media. Today storage ...

5. Computer data storage - Wikipedia

   en.wikipedia.org/wiki/Computer_data_storage

   Device mirroring (replication) – A common solution to the problem is constantly maintaining an identical copy of device content on another device (typically of the same type). The downside is that this doubles the storage, and both devices (copies) need to be updated simultaneously with some overhead and possibly some delays.

6. Computer port (hardware) - Wikipedia

   en.wikipedia.org/wiki/Computer_port_(hardware)

   Examples of computer connector sockets on various laptops Ports on the back of the Apple Mac Mini (2005) A computer port is a hardware piece on a computer where an electrical connector can be plugged to link the device to external devices, such as another computer, a peripheral device or network equipment. [1] This is a non-standard term.

7. Interface (computing) - Wikipedia

   en.wikipedia.org/wiki/Interface_(computing)

   The exchange can be between software, computer hardware, peripheral devices, humans, and combinations of these. [1] Some computer hardware devices, such as a touchscreen, can both send and receive data through the interface, while others such as a mouse or microphone may only provide an interface to send data to a given system. [2]