History of Computer - Before the invention of Computer, Calculator was introduced. Main difference between Calculator and computer is that Computer can do logical operations and calculators can't do logical operations. ABACUS - Abacus was developed in china in 2600 B.C. by some Chinese people. The Word Abacus means calculating board. This apparatus used a series of moveable beads or rocks. The po...

Storage Devices How a computer stores information 1. The computer stores information as a string of zeros (0) and ones (1) The standard string length is eight O'sor 1's in a row This standard length is called a byte A byte equals one character • A character is a letter, number, or symbol - it is about any thing that can be typed on a keyboard • There are 256 standard characters used by...

â–º A computer system unit contains many parts. Motherboard - the motherboard is the main circuit board of a microcomputer. It is also known as the mainboard or system board. CPU - The CPU is the central electronic chip that determines the processing power of the computer. Memory - Memory is the part of the computer that temporarily stores applications, documents, and stem operating informa...

â–º Personal computers Personal computers are desktop computers designed for an individual's use. They run programs designed to help individuals accomplish their work more productively. â–º Servers Servers are not designed to be used directly. They make rmgrams and data available for people hooked up to a computer network, a collection of computers connected together so that they can ex...

Fluids and Solids A fluid is a collection of molecules that are randomly arranged and held together by weak cohesive forces and by forces exerted by the walls of the container. A fluid can flow continuously under the application of a force. However, the solid substance does not deform continuously under the application of force. If the solid is deformed then it may come back to its original shape...