What is an electronic digital computer?
All modern personal computers are today electronic digital computers. The electronic digital computer works using electricity to support digital signals between the processor, random access memory (RAM) and other components of the computer, such as a graphics card and a hard drive. Digital computers can be contrasted with analog computers that were the first versions of what we know today as computers. An analog computer uses a certain physical amount to make calculations - whether it is mechanical or electronic - while the electronic digital computer uses binary digital signals.
The electronic digital computer works by directing the electric current through the power supply. This electricity is directed to a computer motherboard that adds power to the processor device, random access memory and peripheral connection (PCI) connected to the system. Auxiliary components such as DVD-ROM and Hard Drive, accepting the power directly for the RO power supplyHill from the motherboard.
The computer works using a binary language. Electronic digital computers "speak" binary as their native language, which is a language composed of only two characters: "1" and "0." "1" represents the perimeter "ON" while "0" represents the perimeter "off". Any number, letter or other characters can be represented through the combined string of these characters. The electronic digital computer is constantly translating input from the mouse, keyboard and all other peripheral devices into binary.
processor or central processing unit (CPU) is the heart and soul of an electronic digital computer. CPU works by performing arithmetic operations; It is limited to simple multiplication, addition, subtraction and division. Its speed is measured in the number of arithmetic operations that can perform every second. This is indicated in Gigahertz (GHz) for modern processors. Processor speeds ranging from 2.0Up to 3.0 GHz are common for modern processors.
Electronic digital computer stores information in three general locations: within the on -board memory of the processor cache, in the RAM connected to the motherboard and on the hard disk. These options are listed in the descending order of speed and cost - the cache memory is faster and more expensive than RAM, which is faster and more expensive than storage of a hard disk - but in the ascending order of stability. The information stored in the cache is usually rinsed when the processor finishes using the information stored in RAM does not override until another program or computer is turned off. Hard disk storage is the only storage medium on an electronic digital computer that persists after the power is on.