What Is the Importance and Functions of Bios?

The BIOS is at the start of the pc you can hit F10 on my pc it will bring BIOS up. In the BIOS menu if gives you options to give what order you would like hard drives of disk drives to boot up first when turning on your pc. It is also used to control the keyboard. This is a chip that is standard on all motherboards .

Although DRAMs become less reliable when they are not refreshed, they are not immediately erased, and their contents persist sufficiently for malicious (or forensic) acquisition of usable full-system memory images

What is a boot loader? == A boot loader is a very small program that the bootstrap process uses as it brings a computer up from off or reset to a fully functional state. The boot loader frequently resides on the starting sectors of a hard disk called the MBR (master boot record).

Motherboard: The motherboard is where many components such as the CPU, GPU, RAMetc.are connected. The motherboard does not hold any data itself. It also holds ports for input and output devices to be connected, such as a monitor, mouse, keyboard etc.

RAM (Random Accesses Memory): RAM is used by CPU when a computer is running to store the information that it needs to be used very quickly but it does not store any information permanently.

19. Some hardware can be added to the computer without having to restart or power down the computer. After a short period of time the device driver automatically loads and the hardware is available to applications and the user. This type of hardware is considered compatible with what type of technology?

Random Access Memory (RAM) - the storage of data and instructions inside the primary storage is temporary. It disappears from the RAM as soon as the power to the computer is

a) The control signal and the address location in the memory chip are verified and registered using the TDI pin, then the first test vector is turned on. The processor will work in the Selected mode.

CPU stands for Central Processing Unit and it’s the brain of the computer. CPU executes instructions that enable the operating system and application software to run on a system. Inside the CPU we can find three main components which are the ALU, Control Unit and memory unit. ALU stands for Arithmetic and Logic Unit and performs calculations like addition, multiplication, division and subtraction. It also compares results using “greater than”, “less than” or “equal to”. Control Unit controls the operation of the memory unit, processor and input/output units. Memory unit is where all data that the CPU may need to process is stored. The data is stored in the memory in binary form.

5. This chapter describes the concepts behind how a CPU reads the contents from RAM. Which of

29. A term used throughout the world of computing to refer to a basic hardware function that occurs when a computer (or router or switch) is powered on. When a computer\'s power is first turned on, the hardware performs self-diagnostic testing of the hardware before it can load the OS into memory. This term

Bdinfo:The bdinfo command prints the information about the processor board that runs under U-boot as shown in the figure . U-boot pass information such as memory addresses and sizes, clock

Lenovo has a Transition service that saves its customers valuable time and resources, its hardware refreshes, and purchase through deployment to aged asset recovery. According to research, Lenovo’s PC management tools help users reduce costs that capture 80% of a PCs full lifecycle beyond the hardware price. Its ThinkVantage technologies reduce machine downtime and provide data security and their PC lifecycle analysis helps reduce the running and ownership costs. Lenovo helps customers manage the complete PC lifecycle and maximize the productivity and usefulness of devices;

Determining what hardware underlies applications and data – to identify servers (both physical and virtual), web based applications, and data storage devices that hold critical and sensitive data.

This information and instructions for the CPU are stored in Random Access Memory (RAM). This memory is the next hardware component for a bare bones PC referred to as the main memory. The CPU has direct access to any instructions for programs to be executed that are in the main memory and only in the main memory. The main memory is volatile which means it can only store data or instructions when the computer is powered on. The device that stores data when the PC is powered off is the hard drive. It is the computers primary method of storage. Another way it stores memory is through the floppy drive. This form of memory is removable.