CWV – Computer

Connector, BIOS And CMOS – Motherboard Component

The connector has been stuck on the motherboard.

A device that connects motherboards to chassis. In general, the connector is soldered to the motherboard, so external components such as keyboards, printers, speakers, etc. can be connected directly to the motherboard.
. And all connectors connected to the motherboard always follow the standards set. For example, the power supply connector in the cabinet will match the connector on the motherboard. The connector itself is divided into three types:

Connector, BIOS & CMOS - Motherboard Component

a. Power Connector
The power connector is a pin that connects the motherboard to power
supply on the chassis of a computer. On AT type motherboards, the casing needed is AT type too. AT type power connector consists of two parts, where two cables from the power supply will stick there. On the ATX type, the power supply cable integrates in one header intact, so you just plug it in on the motherboard. This cable consists of two columns according to the pins on the motherboard that comprise
above two pin arrays too. There are several motherboards that provide two
type of power connector, AT and ATX. Most of the latest motherboards are already
ATX type.
Power supply is connected to the motherboard through colorful cables and large plastic connectors.

b. Floppy and IDE connectors
This connector connects a motherboard with a permanent storage device such as a floppy disk or hard disk. The IDE connector in a motherboard usually consists of two, one is the primary IDE and the other is the secondary IDE. The Primary IDE connector connects the motherboard to the primary master drive and the secondary master device. Meanwhile, the secondary IDE connector is usually connected with a device for slaves such as CDROM and slave hard drive. how to connect pin with cable? So easy. The IDE cable ribbon has a red stripe on one side. The red strip marks, the side of the red berstrip cable is pinned to the number 1 pin on the connector. When stuck in reverse, installed devices will not be recognized by the computer. The same applies to connecting a floppy cable with a pin on the motherboard.

c. Keyboard Connector
There are two types of connectors that connect the motherboard to the keyboard. One is a serial connector, while the other is a PS / 2 connector. The serial connector or type AT is round, larger than the PS / 2 model, with 5 pin holes. Meanwhile, the PS / 2 connector has a 6 pin pin hole and is half the diameter compared to the AT model.


BIOS (basic input output system) is a collection of programs found in EPROM (Eraseble Programmable Read-Only Memory) or EEPROM (Electrically Eraseable PROM) which are also recognized as Flash ROM chips. The BIOS functions to initialize and configure peripherals primarily in the input and output processes. BIOS position is between hardware and computer operating systems (Windows, DOS, Linux, OS / 2, etc.). Besides that bios also functions to control the interaction between hardware and software. Without this BIOS, any computer as good as it will remain stupid.

CMOS is a tool that will help bios in carrying out their work. So, to run the work, the BIOS needs to be informed about the hardware in a computer system. This notice is stored in CMOS (Complementary Metal Oxide Semiconductor), an important chip that has its own battery to function. If there are additions in the system, for example we add memory, we need to set the record on CMOS. In addition, CMOS serves to energize the motherboard in recognizing the installed configuration, when it has not received power from the power supply.