Computer hardware refers to the physical devices that make up a computer. Examples include the keyboard, monitor and disk drive. Hardware devices can be classified into four distinct categories: Input devices: For raw data input. Inside a personal computer: Monitor. Motherboard. CPU(Microprocessor. Main memory(RAM) Expansion cards. Power supply unit. Optical disc drive. Hard disk drive (HDD). Keyboard. Mouse. An example of a serial port. Graphics Card. Close-up of a Sound Card. Network Interface Card.‎Hardware · ‎Introduction to Motherboard · ‎Ports · ‎Slots. Computer hardware. PDP CPU board. Von Neumann architecture scheme. Basic hardware components of a modern personal computer, including a monitor, a motherboard, a CPU, a RAM, two expansion cards, a power supply, an optical disc drive, a hard disk drive, a keyboard and a mouse.‎Sales · ‎Types of computer systems · ‎Personal computer · ‎Supercomputer.


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USB[ edit ] USB, short for Universal Serial Bus, is an industry standard developed in the mids that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices.

Computer Basics/Hardware/Types of hardware - WikiEducator

Slots[ edit ] Slots are an opening in a computer where a circuit board can be inserted to add new capabilities. All personal computers contain expansion slots for adding more memory, graphics capabilities, and support for special devices.


Expansion slots come in different flavours, which will be described below. An alternative explanation for expansion slots can be found here. Graphics card[ edit ] Graphics Card Graphic cards are also called video cards or a video adapter.


They are in all PCs. Graphic cards convert signals into video signals so the images can be displayed on the monitor. While many graphics cards types of hardware devices integrated into the CPU these days, enthusiasts will invest in standalone graphics cards with stronger and more powerful processing capabilities.

This allows for heavy image editing, or better rendering and framerates types of hardware devices computer games. Graphics cards are designed to offload rendering from the CPU.

Some cards require more power and thus will need a pin connector that runs directly to the power supply.


Graphics cards also include on board memory for efficient rendering. Typical sizes include mb of memory. Today, high end graphics cards have multiple core processors that are largely parallel to increase texture fill and process more 3D objects in real time.

Definitions A computer system consists of two major elements: Computer hardware is the collection of all the parts you can physically touch. Computer software, on the other hand, is not something you can touch.

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Software types of hardware devices a set of instructions for a computer to perform specific operations. You need both hardware and software for a computer system to work. Some hardware components are easy to recognize, such as the computer case, keyboard, and monitor.

The Four Categories of Computer Hardware

However, there are many different types of hardware components. In this lesson, you will types of hardware devices how to recognize the different components and what they do. Types of Computers Before looking at the various components, it is useful to distinguish between two different types of computers: Data is stored temporarily in processor cache and primary memory during the processing period.

The microprocessor is subdivided into three important units, which work together in order to accomplish its function. It manages and supervises the operations of the processor and other components that are crucial in data manipulation. Arithmetic and logic unit: The ALU is responsible for all arithmetic and logic operations like addition, multiplication, types of hardware devices, division, and comparison logic operations.