STD-10 COMPUTER CH-1 QUIZ

STD-10 COMPUTER CH-1 QUIZ

Devices have been used to aid computation for thousands of years, mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres, cones, etc.) which represented counts of items, probably livestock or grains, sealed in hollow unbaked clay containers. The use of counting rods is one example.

The differential analyser, a mechanical analog computer designed to solve differential equations by integration, used wheel-and-disc mechanisms to perform the integration. In 1876, Lord Kelvin had already discussed the possible construction of such calculators, but he had been stymied by the limited output torque of the ball-and-disk integrators. A computer is a machine that can store and process information. Most computers rely on a binary system that uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms, and displaying information. In a differential analyzer, the output of one integrator drove the input of the next integrator, or a graphing output. The torque amplifier was the advance that allowed these machines to work. Starting in the 1920s, Vannevar Bush and others developed mechanical differential analyzers.

A quiz is a unique form of game or mind sport in which players or kids attempt to answer questions correctly or try to be precise .this is a game to challenge ourselves to  test knowledge about a certain subject we learned . In some countries, a quiz is also a brief assessment used in education and similar fields to measure growth in knowledge, abilities, and/or skills.

Quiz help students identify what they know and what they don't know. The students then have a better idea of how well they are grasping the material, hopefully motivating them to study more and helping them allocate their study time effectively by focusing on the information that still needs more practice. 

ADVANTAGES OF DAILY QUIZZES

·        Students tend to actually read the material.

·         Students show up for class on time since the quiz always comes first.

·         Students are placed in the right attitude for learning.

·         Students feel more confident to discuss the material.

·         Students raise their grades by simply reading the material.

·         The start of class is signalled.

·         The quiz provides a good lead-in for either a lecture or discussion of the material.

·         Students grow curious about the answers.  At the end of class (when the suspense is killing them), I usually answer any quiz question that didn't naturally pop up during class.

·         The easy chance to do well gives students a feeling of self-esteem

A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks.

The first mobile computers were heavy and ran from mains power. The 50lb IBM 5100 was an early example. Later portables such as the Osborne 1 and Compaq Portable were considerably lighter but still needed to be plugged in. The first laptops, such as the Grid Compass, removed this requirement by incorporating batteries – and with the continued miniaturization of computing resources and advancements in portable battery life, portable computers grew in popularity in the 2000s.[91] The same developments allowed manufacturers to integrate computing resources into cellular mobile phones by the early 2000s.