Purpose of motherboard: It is called the main board of a computer. All devices are connecting with it. We cannot build a full computer without it. These buses allow data to travel between the various components that comprise a computer. A motherboard is also known as the system board, the backplane, or the main board. The motherboard accommodates the central processing unit (CPU), RAM, expansion slots, heat sink/fan assembly, BIOS chip, chip set, and the embedded wires that interconnect the motherboard components. Sockets, internal and external connectors, and various ports are also placed on the motherboard.
Characteristics:
Intel DG41RQ :
DG 41 41 RQ 41RQ 41RQ,Intel G41, DDR2 RAM, Micro ATX, Graphics card, Sound card, Network card, Cash memory.
MSI G31M3-L V2: G 31, 31 M, 31M, Intel G31 / Intel ICH7, DDR2 RAM, Micro ATX, Graphics card, Sound card, Network card, Cash memory.
Power Supply
Names of Power Supply
Uninterruptible Power Supply
Fig: Powersupply
Purpose:
A power supply unit (PSU) is the component that supplies power to the other components in a computer. More specifically, a power supply unit is typically designed to convert general-purpose alternating current (AC) electric power from the mains to usable low-voltage direct current (DC) power for the internal components of the computer.
CPU
Names of CPU:
Intel Duel core 2.7GH.
Intel Core2 Duo.
Purpose of CPU: A Central Processing Unit is the main processor in a computer that processes all the logic statements put to it. It is responsible for all the processing of the computer unless there is another process that does the job like a Graphics Processing Unit or Physics Processing Unit.
Fig: CPU
Characteristics of CPU: Clock Speed2.7 GHz.L2 Cache2 MB.Bus/Core Ratio13.5.FSB Speed800 MHz Instruction Set64-bit.Embedded Options Not Available. Supplemental not available .SKUNoLithography45 nm.Max. TDP65W.VID Voltage Range0.8500V-1.3625V
Memory Module
Names of Memory Module:
240pin Unbuffered DDR3 DIMM.
Fig: 240pin Fully Unbuffered DDR2 DIMM
Purpose and characteristics:
240-pin DDR2 Unbuffered DIMMs are used to provide DDR3 SDRAM memory for the next generation of new servers and motherboards that use DDR3 technology. DDR3 is a leading-edge generation of memory with an improved architecture that allows it to transmit data very fast. .
Names of Memory Module:
240pin Fully Buffered DDR2 DIMM
Fig: 240pin Fully Buffered DDR2 DIMM
Purpose and characteristics:
240-pin fully buffered DIMMs (FBDIMMs) are used to provide DDR2 SDRAM memory for servers and motherboards that use FBDIMM technology. DDR2 is a leading-edge generation of memory with an improved architecture that allows it to transmit data very fast.
Storage devices
Names of Storage devices:
Primary storage.
Secondary storage.
Fig: Storage Devices
Purpose and characteristics:
Primary storage.
Primary storage is a storage location that holds memory for short periods of times while the computer is on. Also known as main memory For example, computer RAM and cache are both examples of a primary storage device. This type of storage is the fastest type of memory in our computer and is used to store data while it's being used. For example, when we open a program data is moved from the secondary storage into the primary storage.
Secondary storage
Secondary storage is difference from primary storage it cannot directly access by the CPU. The computer usually uses its input/output channels for access secondary storage and transfers the desired data using intermediate area in primary storage. Secondary storage does not lose the data when the device is powered down-it is non-volatile. Data is kept for a longer time there.
Names of adapter card:
USB Adapter Card
Network adapter card.
Purpose and characteristics:
USB Adapter Card
An USB adapter card is an internal card that enables a computer to connect a keyboard, Mouse, Printer etc.By An USB adapter card we can connect a external devices with our computer easily. We also transfer data in a faster way help of it.
Network adapter card.
A network adapter card is an internal card that enables a computer to connect in a network. By A network adapter card we can connect our machine with internet or a LAN/WAN. Especially this adapter card is for network.
Name of some display devices:
LED text displays.
LCD text displays.
Purpose of display devices:
A light-emitting diode (LED) (pronounced is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.
Fig: Display Devices
B)
Purpose of Serial ports:
In computing, a serial port is a serial communication physical interface through which information transfers in or out one bit at a time (contrast parallel port). Throughout most of the history of personal computers, data transfer through serial ports connected the computer to devices such as terminals and various peripherals.
Characteristics of Serial ports:
A serial cable is a cable that can be used to transfer information between two devices using serial communication. The form of connectors depends on the particular PHY used. A cable wired for connecting two DTEs directly is known as a null modem cable.
Fig: Serial ports
Connector:
Fig: Connector for Serial ports
Purpose of parallel ports:
A parallel port is a type of interface found on computers for connecting various peripherals. In computing, a parallel port is a parallel communication physical interface. It is also known as a printer port or Centronics port.
Characteristics of parallel ports:
The PC parallel port usually consists of 25 pins in a DB-25 connector. These pins can interface to the TTL logic of an external device, either as inputs or outputs. Some pins can be used as inputs only, while some can be switched in software, on-the-fly, between input mode and output mode.
Fig: parallel ports
Connector:
Fig: parallel ports connector
Purpose of USB:
USB has effectively replaced a variety of interfaces such as serial and parallel ports. USB can connect computer peripherals such as mice, keyboards, digital cameras, printers, personal media players, flash drives, Network Adapters, and external hard drives. For many of those devices, USB has become the standard connection method.
Characteristics of USB ports:
The popularity of the Universal Serial Bus (USB) in the consumer electronic space is unquestionable. Most of today's computer and other peripherals can be connected to a USB port for data transfer, including flash cards, digital cameras, printers, mice, keyboards and others. The USB 2.0 specification has expanded market opportunities since data transfer rates can reach up to 480Mbps while maintaining the attractive plug-and-play characteristics of this interface.
Fig: USB port
Connector:
Fig: USB connector
Purpose of fire wire ports:
FireWire a port for high-speed communications and isochronous real-time data transfer, frequently used by personal computers, as well as in digital audio, digital video, automotive, and aeronautics applications
Characteristics of fire wire ports:
Personal computers used to come with a bewildering array of connection ports, each necessary to connect a particular kind of peripheral. One kind of port was for printers, another kind for keyboards, another for the mouse, yet another for scanners and still a different one for modems
.
Fig: wire ports
Connector:
Fig: wire connector
Purpose of RJ45 ports:
The RJ-45 connector pin out matches the conductor pairing scheme used by Category 5 (Cat5) twisted pair patch cables. The avoidance of pins 4 and 5 helps to prevent equipment damage, if the cabling is accidentally plugged into a single-line public switched telephone network phone jack.
Characteristics of RJ45 ports:
RJ-45 port is a port by which we can connect our computer with Internet, In a WAN, a LAN. It's also called Ethernet port. The RJ-45 connector pin out matches used by Category 5 (Cat5) twisted pair patch cables. It also use telephone jack.
Fig: RJ-45 port
Connector:
Fig: Connector for RJ-45
Feature of DIN port:
JVC KW-XR610 Double DIN CD, MP3, WMA Receiver with AUX and USB Inputs.2 Sets of 2.5 volt preamp outputs (front and rear/subwoofer switchable).SIRIUS or XM Satellite Radio Ready - requires tuner, antenna, and subscription.HD Radio Ready Bluetooth Ready
Characteristics of DIN ports:
The mini-DIN connectors are a family of multi-pin electrical connectors used in a variety of applications. Mini-DIN is similar to the larger, older DIN connector. Both are standards of the Detaches Institute fur Normung, the German standards body.
Fig: DIN port
Connector:
Fig: Connector for DIN port
Feature of Mini-Din port:
It allows you to connect a PS2 mouse and keyboard through the USB port on any computer Features. USB Connector: Type A; PS/2 Connector: Keyboard - 6-pin Mini Din Female (purple); Mouse - 6-pin Mini Din Female (green). Requirements . The BV9974B features a USB port and SD Card jack, so you can instantly .The convenient front-panel auxiliary input (3.5mm mini jack) is a great way to 1.5-Din AM/FM Receiver / CD/DVD/MP3/AM-FM Marine Grade Player.
Characteristics of Mini-DIN ports:
The mini-DIN connectors are a family of multi-pin electrical connectors used in a variety of applications. Mini-DIN is similar to the larger, older DIN connector. Both are standards of the Deutsches Institut fur Normung, the German standards body.
Fig: Mini-Din port
Connector:
Fig: Mini-Din Connector
Feature of Centronics port:
A parallel port is a type of interface found on computers (personal and otherwise) for connecting various peripherals. In computing, a parallel port is a parallel communication physical interface. It is also known as a printer port or Centronics port. The IEEE 1284 standard defines the bi-directional version of the port, which allows the transmission and reception of data bits at the same time.
Characteristics of Centronics ports:
Centronics connectors are standard parallel interface devices for connecting printers and other peripherals such as portable disc drives, tape backup drives, and CD-ROM players to computers.
Fig: centronics port
Connector:
Fig: Centronics port connector
