Installation of drivers
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Ports enable connection of hardware devices like keyboards, mice and printers to a computer system. Different port types - serial, parallel, PS/2, USB, infrared, Bluetooth, DVI and HDMI - are used to connect various devices and transfer data or power. Ports are located on the back or front of the system case and devices must match the correct port type to connect without damage.
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input output ports
I/O ports allow connection between computers and peripheral devices like keyboards, mice and monitors. There are two main types of ports: serial ports which transmit data one bit at a time, and parallel ports which allow simultaneous transmission of multiple bits of data. Common ports include VGA, DVI, HDMI and USB. Device drivers act as an interface between the operating system and device controllers to allow communication between I/O devices and the CPU. There are three main I/O mechanisms: programmed I/O where the CPU directly controls I/O, interrupts where devices signal the CPU when ready, and DMA which allows hardware subsystems to access memory independently of the CPU.
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A motherboard is the main circuit board that holds and connects all the components of a computer system. It contains the CPU socket, memory slots, expansion slots, connectors for peripherals and power supply. Key components include the northbridge and southbridge chips, BIOS chip, and connectors for devices like graphics cards, hard drives, and expansion cards.
pc hw.pdf
Computer hardware consists of three main components: input devices, output devices, and the system unit. Input devices such as keyboards, mice, and scanners allow users to enter data. Output devices like monitors, printers, and speakers display or present information to users. The system unit contains the central processing unit, memory, hard drive, power supply, and motherboard which process data and run programs.
16 supporting io devices
This document discusses supporting input/output devices. It covers installing both hardware and software, including device drivers. It describes various port types like serial, parallel, USB, IEEE 1394, and expansion slots. It provides details on using and troubleshooting keyboards, mice, and other common peripheral devices.
Computer Term
The document defines and describes common computer hardware components and related terms. It explains that the CPU processes all information in a computer and is often called the "brain". RAM allows temporary storage and immediate access to required data, while ROM retains its contents when the computer is turned off. Other components described include the cache, hard drive, motherboard, power supply, video/graphics card, sound card, and devices for measuring speed and storage such as kilohertz, megabytes, and gigabytes. Interface types like USB, VGA, HDMI, DVI, and audio jacks are also outlined. Finally, common peripheral devices such as printers, monitors, scanners, keyboards, mice, speakers, and USB flash drives are
DESKTOP PC INTERFACE.pptx
1. The document provides instructions for connecting basic components and peripherals to a desktop computer, including mice, keyboards, speakers, monitors, printers, and external storage devices.
2. It describes various connector types like USB, HDMI, VGA and their uses for connecting external devices to computers. USB is commonly used to connect peripherals while VGA and HDMI are used for analog and digital monitors, respectively.
3. Step-by-step instructions are provided for setting up a computer with all its components, including connecting the monitor, keyboard, mouse, speakers and power and turning the computer and monitor on.
A+ certification (Core hardware) Pc Maintenance
What does A+ Certification mean?
The A+ certification is a basic certification that demonstrates proficiency with computer hardware and operating systems (OS). It is governed by nonprofit trade association CompTIA. The A+ certification helps prove the recipient's proficiency with the use of computers and related devices.
Techopedia explains A+ Certification
Core elements of A+ certification criteria include knowledge of computer anatomy, which is why many experts suggest that those pursuing this credential practice assembling and disassembling a physical computer. Other areas involve operating systems (OS) and knowledge of Microsoft products. Those seeking A+ certification also should be knowledgeable about certain tasks, like booting up a computer with various installed operating systems (OS).
In addition to hardware configuration aspects, the A+ test also covers computer data usage elements, such as the basic structure of binary data and various aspects of file input/output (I/O). Test prep materials and other resources showing specific A+ certification test topics are available.
PPT ON HARDWARE AND CONCEPT
subject : informatics practice.
chapter 1 hardware and concept .
school type : cbse (central board of secondary education.)
Computer hardware
The document provides an overview of computer hardware components and their functions. It discusses the major internal components of a computer system including the central processing unit (CPU), motherboard, memory, expansion bus, power supply, hard drive, and optical drive. It also describes common input devices like keyboards and mice, output devices like monitors and printers, and port types including USB, serial, and video ports. The document provides definitions and examples of these various computer hardware components and their roles in processing and transferring digital information.
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Installation of drivers
- 1. Installation of drivers (I/O devices) Input/output(I/O) portenables you to connect hardwaredevices such as the keyboard flash drives, mouse, printer and scanners to the system. Itis the entry and point for data from the system. Introducing ports: a port is used to connect the systemand a device together, using a connecting cable, so that they can communicate together. The different ports available are usually located at the back of the systemcaseor they may also be located at the frontside of the system case Types of ports: the ports have differentshapes and size.thus beforepurchasing aDevice you must check if you can attach the device to the systemusing the port available on the system.you mustnotforce a device plug into a portor you may bed the pins.somedevicesuch as the keyboard and mouseport on mewer system use the PS/2 port that looks the sane but can be differentiated using the port color. Serial ports: a serialport is like a single lane road that sends and receives one bit Of data at a time.thus,eight bits of data in one byte travel one bit at a time,one behind the other. The serial portconnector is also known as the communication or comport and can have9 or 25 pins. Parallel ports: the parallel portis like an eight lane road that transmits eight bits ofData at a time.it is like eight cars moving on a wideroad side by side the paraller portconnector has 25 pins to connect devices such as printers,scanners
- 2. external hard drives and tape drive backup devices computer’s motherboard usually includes one parallel port. PS/2 port: the portis used to connect the keyboard and mouseto the system The ports are available in a color that matches the color of the plug connecting the mouseand keyboard. Universal serial bus (USB) ports: the usb ports is a rectangular port that is used to connect a variety of devices to the system. The usb ports also supplies power yo the device such as the web camera if the device does not use an external power source.you mustinstall the usb driver before using the usb ports. Infraredports: devices usethe infrared ports to communicate with the system without using wires. The devices send out infrared signals that enter the system through this ports.
- 3. Bluetoothports: bluetooth is a technology which allows wireless communications between devices within a ranged distance.a bluetooth adapter is required for the computer and a bluetooth compatible device to communicate through bluetooth. DVI monitor port: shortfor digital visualinterface adigital interface standard created by the digital display working group(DDWG) to convertanalog signals into digital signals to accommodate both analog and digital monitors. data transmitted using the transition minimized differential signaling (TMDS)protocolThepc’s graphics subsystemto the display. Highdefinitionmultimediainterface (HDMI): is an interface standard used for audiovisualequipment such as high-definition television and home theater systems. With 19 wires wrapped in a single cable that resembles a usb wire,hdmi is able to carry a bandwidth of 5gbps(gigabits per second).