what follows‚ the different types of personal computers are discussed. Desktop It is a computer system that is used at home‚ at work‚ in schools‚ universities... It consists of a monitor and a casing inside which the power supply‚ the CPU‚ the motherboard and many other devices are located. These computers may be used for creating‚ editing‚ printing and sending documents. They are also used to communicate using the vast network of computers spread all over the world called the internet. They are
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Importance of Computer Literacy Computer literacy is having up to date knowledge of computers and their capabilities. One of the more popular aspects of the computer is the use of the internet. The internet is a worldwide collection of networks that links millions of businesses‚ government agencies‚ educational institutions‚ and individuals. It was originally started by the Pentagon for scientists and military to put information and their studies on a network that was easily shared with one another
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1. Processor (CPU) Processor refers to CPU (Central Processing Unit) which is the brains of the computer where most calculations take place. In terms of computing power‚ processor is the most important element of a computer system. Without it‚ a computer cannot even boot up or running. The performance of processors determines the speed and the performance of the notebook as well. Whether a computer system can run smooth or not is also depend on the performance of processor. Most of the processors
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PRELIM COMPUTER What is a Computer? A computer is an electronic machine that can be programmed to accept data (input)‚ process it into useful information (output)‚ and store it in a storage device for future use Characteristics of a Computer •It’s a machine. •It is electronic. •It is automatic. •It can manipulate data. •It has memory •It has logical function Capabilities of a Computer • Speed • Accuracy • Repetitiveness • Storage • Programmable Limitations of a Computer • Cannot operate without
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INTRODUCTION TO COMPUTERS Our lifestyles have undergone a sea change with the advancement in technology especially in the field of computers. Computers are an integral part of our lifestyles today and are found at offices‚ homes‚ schools‚ colleges‚ hotels‚ shops etc. This advance in technology has made our lives easy and comfortable. For instance‚ we can execute a number of activities using computer based systems- we can write a draft on word processor and email it‚ make calculations using an
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Blog Manage My Certifications Help About Contact | | * Get Certified Your browser does not support inline frames or is currently configured not to display inline frames. * * CompTIA Certifications * CompTIA Advanced Security Practitioner (CASP) * CompTIA A+ * CompTIA CDIA+ * CompTIA CTP+ * CompTIA CTT+ * CompTIA Linux+ Powered by LPI * CompTIA Network+ * CompTIA PDI+
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| Name Of Twenty Software And Hardware And Their Uses | SOFTWARE Software consists of a series of instructions that tells the computer what to do and how to do. It is also called a program. In other words‚ software is a conceptual entity which is a set of computer programs‚ procedures‚ and associated documentation concerned with the operation of a data processing system. There are mainly two categories of software- * System software * Operating system * Utility program *
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Part A (20 marks) Choose the BEST answers. Write your answer into the Answer Sheet provided. 1. Computer ____ entails having the knowledge and understanding of computers and their uses. a. literacy c. legitimacy b. intimacy d. infancy 2. A(n) ____ is an electronic device‚ operating under the control of instructions stored in its own memory‚ that can accept data‚ process the data according to specified rules‚ produce results‚ and store the results for future use. a. input device c
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What is the difference of Microsoft and Mac? Windows computers are preferred by many because of how easy they can be to customize. Because of the way their hardware is designed‚ users can replace graphics cards‚ RAM chips‚ CD drives‚ motherboards and other internal hardware at their discretion. Most Mac models‚ on the other hand‚ are difficult to upgrade apart from RAM and a few other basic components. Most changes require a visit to an Apple store. Windows computers are
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controller venders‚ over 1000 vendors offering PLC add-in boards and other peripherals‚ and over 2000 companies developing PLC solutions. 4. Some similarities between PLC and PC are that they both have a similar architecture‚ with both having a motherboard‚ processor‚ memory‚ and expansion slots. Some differences between PLC and PC is that a PLC has no removable or fixed storage media such as floppy or hard disk drives and PLCs do not have a monitor‚ but often use a human machine interface (HMI) flat
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