Links to topics on this page:
The term peripheral is used to describe those devices that are optional in nature, as opposed to hardware that is either demanded or always required in principle. There are all different kinds of peripherals you can add your computer.
The main disctinction among peripherals is the way they are connected to your computer. They can be connected internally or externally. Unlike a point-to-point connection, a bus can logically connect several peripherals over the same set of wires.
Each bus defines its set of connectors to physically plug devices, cards or cables together. There are two types of buses: Internal buses are connections to various internal components. External buses are connections to various external components. There are different kinds of slots that internal and external devices can connect to.
Different computers come with different kinds and number of slots.
This kind of bus is being succeeded by PCI Express. Video cards have outgrown the capabilities of PCI because of their higher bandwidth requirements.
PCI express is not a bus but instead a point-to-point conection of serial links called lanes. PCMCIA was originally designed for computer memory expansion, but the existence of a usable general standard for notbeook peripherals led to many kinds of devices being made available in this form.
Typical devices include network cards, modems, and hard disks. AGP cards and motherboards are still available to buy, but they are becoming less common. Some video cards offer added functions, such as video capture, TV tuner adapter, ability to connect multiple monitors, and others.
Most video cards all share similar components. They include a graphics processing unit GPU which is a dedicated microprocessor optimized for 3D graphics rendering.
If the video card is integrated in the motherboard, it may use the computer RAM memory. If it is not it will have its own video memory called Video RAM. This kind of memory can range from MB to 2GB. A video card also has a RAMDAC Random Access Memory Digital-to-Analog Converter which takes responsibility for turning the digital signals produced by the computer processor into an analog signal which can be understood by the computer display.
Lastly, they all have outputs such as an HD connector standard monitor cableDVI connector, S-Video, composite video or component video. Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability.
It allows users to connect to each other either by using cables or wirelessly. Although other network technologies exist, Ethernet has achieved near-ubiquity for a while now. You can learn more about networking in the introduction to networking lesson. USB was designed to allow many peripherals to be connected using a single standardized interface socket and to improve the plug-and-play capabilities by allowing devices to be connected and disconnected without rebooting the computer.
Other convient features include providing power to low-consumption devices without the need for an external power supply and allowing many devices to be used without requiring manufacturer specific, individual device drivers to be installed. USB is by far the dominating bus for connecting external devices to your computer.
LINK for Sony is a serial bus interface standard for high-speed communications and isochronous real-time data transfer, frequently used in a personal computer.Apr 12, · Free Computer Skills Course: Learn about the different types of ports and connectors on a computer.
Transcript: All of these peripherals need a way to connect to the CPU, so let’s take a look . Examples of peripheral devices include the keyboard, mouse, monitor, printer, scanner, USB drive, webcam and headphones.
Peripheral devices connect to the central processing unit of a computer and provide the it with input, output and storage capabilities. A keyboard, scanner and webcam provide. Computer Peripherals School of Computer Engineering Nanyang Technological University technology involved in most computer peripherals has caused the devices to be omitted from these courses.
If you look at a PC that you can get for slightly above $1,, you will get a list. A peripheral device connects to a computer system to add functionality. Examples are a mouse, keyboard, monitor, printer and scanner. Learn about the different types of peripheral devices and how.
PERIPHERAL DEVICES OF COMPUTER. 1. Magnetic Disk Drives: Hard disk Drive organization: The modern hard disk drive is a system in itself.
It contains not only the disks. that are used as the storage medium and the read write heads that access the raw data. encoded on them, but also the signal conditioning circuitry and the interface. Below we discuss the variety of peripheral devices used for computer input and output.
Input Devices Keyboard: Input Devices Keyboard Mouse (newer). Older Macintosh computers used an ABD connector, but for several years now all Mac keyboards have connected using USB. (you have one in front of you that you can see for a closer look).