CMOS is a short form of the complementary metal-oxide-semiconductor which is a small amount of memory generally used in computer motherboard, mainboard in order to store BIOS settings. CMOS can also be named as Real-Time Clock(RTC), CMOS RAM, Non-Volatile RAM(NVRAM), Non-Volatile BIOS Memory and COS-MOS. CMOS History First CMOS chip was used in early IBM computers. This CMOS chip was two main components RTC and CMOS RAM. This CMOS also...
Basic Input and Output System simply know as BIOS is the first thing which is loaded by the computer. BIOS is designed to initialize a computer properly and load the real full features operation system like Windows, Linux, etc. BIOS is a low-level software where it provides very little but crucial features for its users. BIOS Functions BIOS has some basic functions in order to start the computer and load...
WMIC or Windows Management Interface Command is a simple command line tool used to issue WMI commands. WMI command generally used to query all of the system related information like Computer Name, BIOS Serial Number, Mac Address etc. Batch WMIC WMIC provides two type of usage. Batch usage is the most popular where we can issue WMI commands into MS-DOS or PowerShell like below.
1 | > wmic /? |
Interactive WMIC Command Line WMIC also...
Hardware manufacturers produces a lot of hardware. Some of these manufacturers like Dell, Hp, Huawei, Toshiba etc. sell these products to the corporations. So we can call these products as enterprise products. These products generally provides extra warranty for enterprises. So They need to track the hardware they produced. What Is Service Key or Tag? Service key is some alphanumeric values used to uniquely identify the hardware. It is similar...
The first Personal Computer or PC is designed in 1980’s by IBM. This computer has different components and design from previously designed computers. This design is cloned by a lot of manufacturers. This computer boot sequence was like below.
1 | BIOS -> Operating System |
BIOS was the first component that runs when computer starts. BIOS initialization hardware and make some checks and then start operating system resides in disk or network. UEFI is next...
