and quite literally destroy your computer. 3. Depending on the OS and software/hardware installed‚ they can be difficult to maintain. 4. If you have the internet and don’t have an Anti-Virus program‚ or at least an Anti-Spyware program‚ surfing the web can ruin your day. 5. Nothing lasts forever. 6‚ computers are taking places of labours and 1 computer can do a work of almost 100 acountents at 1 time and all pplz whos’ job is acountacy are job less coz of computer. 7‚ hackers can interfare in
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Computer Organization with Assembly Language Digital Computer: A digital computer is a fast electronic calculating machine that accepts digitized input information‚ processes it according to a list of internally stored instructions‚ and produces the resulting output information. Types of Computers: 1. Personal Computers 2. Workstations 3. Mainframes 4. Supercomputers Basic Operation of a Computer 1. The computer accepts information in the form of programs and data through an
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Computer Security Student Name University Abstract James works for a bank‚ and he spends most of his attending to bank clients and travelling. He always carries with him a laptop that contains confidential bank information. The Operating System of the laptop was last updated in May 2011. Some of the programs James uses are MS word 2007‚ MS Access and MS Excel. James’ computer is‚ however‚ not well secured. It does not have a firewall or an antivirus. In addition‚ the data in the laptop are
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known and popularly used types of computer software. These software come in the form of tools that assist a programmer in writing computer programs. Computer programs are sets of logical instructions that make a computer system perform certain tasks. The tools that help programmers in instructing a computer system include text editors‚ compilers and interpreters. Compilers translate source code written in a programming language into the language which a computer understands (mostly the binary form)
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PART 1 : WORK PATTERNS Lesson 1: Computers on the Job: How Workers use computers The companies that use large computer system today are mostly the same companies that used them 30 to 40 years ago: corporations that have the big budget. These organizations – typically banks; insurance firms and aerospace companies – were the pioneers. The computers used were potent by then-current standards‚ even though today’s personal computers would provide a competitive edge. This turned out to be
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ASSEMBLY Definition of Terms Program - a set of instructions that tells the computer to perform a particular task. Programming – refers to the process of designing and creating computer programs. Programming Language - a software tool that facilitates the translation of human instructions to a form that computers can understand. Programmer - a person who can design‚ create‚ and maintain computer programs. Algorithm - a step by step solution of a problem. Levels of Programming
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A computer is one of the most brilliant inventions of mankind. Thanks to computer technology‚ we were able to achieve storage and processing of huge amounts of data; we could rest our brains by employing computer memory capacities for storage of information. Owing to computers‚ we have been able speed up daily work‚ carry out critical transactions and achieve accuracy and precision at work. Computers of the earlier times were of the size of a large room and were required to consume huge amounts of
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size[edit] Microcomputers (personal computers)[edit] Microcomputers are the most common type of computers used by people today‚ whether in a workplace‚ at school or on the desk at home. The term “microcomputer” was introduced with the advent of single chip microprocessors. The term "microcomputer" itself is now practically an anachronism. These computers include: * Desktop computers – A case and a display‚ put under and on a desk. * In-car computers (“carputers”) – Built into a car‚ for
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of the military and industry in the development of electronics‚ computers‚ and information theory. After the 1940s‚ the military remained the major source of research and development funding for the expansion of automation to replace manpower with machine power. Since the 1950s‚ four generations of computers have evolved. Each generation reflected a change to hardware of decreased size but increased capabilities to control computer operations. The first generation used vacuum tubes‚ the second used
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UNIT - I BASIC STRUCTURE OF COMPUTERS FUNCTIONAL UNITS A computer consists of five functionally independent main parts. They are‚ ➢ Input ➢ Memory ➢ Arithmetic and logic ➢ Output ➢ Control unit Basic functional units of a computer [pic] The operation of a computer can be summarized as follows The computer accepts programs and the data through an input and stores them in the memory.The stored data
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