Outline the history of Information sattorov abror 5-m.i. ingliz tili — копия 2. Мавзу Ижтимоий психологиянинг асосий замонавий йўналишлари
INFORMATION TECHNOLOGY KHARSHI BRANCH OF TASHKENT UNIVERSITY OF INFORMATION TECHNOLOGIES NAMED AFTER MUHAMMAD AL-KHARAZMI Sattorov abror TT and KT faculty AX 11-21 OBJECTIVE Technology. - Brief history of computer hardware and software, Internet and telecommunications; categories by size, cost, and processing ability. Introduction Information technology has been around for a long, long time. Basically as long as people have been around, information technology has been around because there were always ways of communicating through technology available at that point in time. There are 4 main ages that divide up the history of information technology. Only the latest age (electronic) and some of the electromechanical age really affects us today, but it is important to learn about how we got to the point we are at with technology today. COMPUTER HARDWARE Computer hardware refers to all the physical components of the computer.
Some examples are motherboard, keyboard, mouse, speakers etc. EXAMPLES OF COMPUTER HARDWARE
Brief History of Computer Hardware There are five different generations of computers. The five generations are: First Generation Second Generation Third Generation Fourth Generation Fifth Generation 1946-1959 Large and limited to basic calculation Punch cards, paper tape, and magnetic tape were used to enter data into these computers. Computers back then were rented for around $16,000/month. These computers were unreliable because they would always heat up and shut down SECOND GENERATION COMPUTERS 1959-1965 They used transistors instead of vacuum tubes. It made the computers more compact. Primary memory was stored on magnetic tape and magnetic disks were used as secondary storage It has a slightly faster core memory Cost around $85,000 Third Generation Computers 1965 – 1971 Integrated circuits was introduced by Jack Kilby. The size of computers were now decreased by a lot. The input language for these types of computers were PASCAL and BASIC. This enabled the computers to perform more complex calculations. The rental price for a machine was around $5000 and to purchase a machine around this time was around $253,000. Processors Over the Years Computer software is a set of instructions and associated documentation that tells a computer what to do or how to perform a task. They can be categorized into: Application Software Programs that are developed to carry out specific tasks or solve particular tasks. Application software can be categorized as followed: General-Purpose Software Integrated Software Specialized Software Customized software Custom-written (tailor-made) Software Dostları ilə paylaş: