What was the Antikythera used to predict?
The ancient Greek astronomical calculating machine, known as the Antikythera Mechanism, predicted eclipses, based on the 223-lunar month Saros cycle. It also implies the existence of lost lunar eclipse inscriptions. The second model closely matches the glyph times and explains the four-turn spiral of the Saros Dial.
How big is the Antikythera mechanism?
approximately 13 centimetres
Where is the Antikythera mechanism?
National Archaeological Museum of Athens
Who made Antikythera mechanism?
Hipparchos
Where was the first computer found?
Antikythera
What are the ancient and mechanical computer?
A mechanical computer is built from mechanical components such as levers and gears, rather than electronic components. Mechanical computers continued to be used into the 1960s, but were quickly replaced by electronic calculators, which—with cathode-ray tube output—emerged in the mid-1960s.
When was 1st computer invented?
1943
What are the classification of computer based on size?
On the basis of size there are four types of computer. They are minicomputer, micro computer, mainframe computer and super computer. Super computer is the fastest, most expensive, big in size, and most powerful computer that can perform multiple tasks within no second.
What are the classification of computer based on size and capability?
Computers are classified on different parameters, such as, storage capacity, processing speed and component (CPU) used in computers. Depending upon the components used and features of different computers, they are classified into four groups, Microcomputers, Minicomputers, Mainframe computers and Supercomputers.
Why are laptop computers called so?
The device derives its name from being able to be used by resting on a person’s lap without the need for a desk or other surface. Laptop computers may also be referred to as notebook computers, though a notebook computer usually describes a computer that is smaller and lighter than a laptop computer.
What is a small computer called?
Notebook or laptop computers are small and lightweight enough to be carried around with the user. They run on battery power, but can also be plugged into a wall outlet. There are also less-powerful versions of notebook computers called subnotebooks, and netbooks that are used mainly to access the Internet.
Is laptop a microcomputer?
Modern desktop computers, video game consoles, laptops, tablet PCs, and many types of handheld devices, including mobile phones, pocket calculators, and industrial embedded systems, may all be considered examples of microcomputers according to the definition given above.
Is laptop a mainframe computer?
Explanation: Mainframe Computers and Minicomputers are the categories of a laptop wherever mainframe computers give rather more options than minicomputer and high capability for memory and process speed.
What are the small laptops called?
That’s changing quickly as a new generation of small laptops — variously called mini-notebooks, ultrasmall laptops, subnotebooks, ultraportables, netbooks and probably something else tomorrow — that weigh less than 3 pounds and often cost less than $500 come to market.