Labels:abacus | book | bottle | bulletin board | case | hakham | memory | sky OCR: 486 CHAPTER SECTION Computer History LIKE MOST INVENTIONS throughout history, computer technol- ogy evolved as inventors tinkered with various devices. With so many pioneering efforts historians cannot pinpoint one development and say that t represents the first calculator or the first computer. Keeping that uncer- tainty in mind, it is interesting. nonetheless, to trace the development of computers. Knowing the history computers helps you understand the design and capabilities of today's ever-expanding assort tment of digital devices It also helps you understand how the computer industry of today came into being. MANUAL CALCUL ATORS What came before computers? Even before recorded history, humans used counting aids, such as pebbles and notched sticks, to keep track of quantities -the numb ...
