access time is required for accessing information from any storage location Suitable for direct processing applications such as on-line ticket booking systems‚ on-line banking systems Magnetic‚ optical‚ and magneto-optical disks are typical examples of such a storage device Best example to differentiate b/w sequential and direct access is the audio cassette and compact
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CHAPTER III Analysis and Plan Enhancing Stage Design Method In planning for enhancement of the cybercafé server and system cloning the researcher use star topology for the networking‚ handy café for the new client-server software and tune up utility. Table 1. Developing process for the proposed enhancement Process | Task | 1. Network topology | In this point the researchers will search about the accurate network topology that can use in this study | 2. Server and Client Computer
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refers to the physical components of your computer such as the system unit‚ mouse‚ keyboard‚ monitor‚ etc. The software is the instruction that makes the computer work. Software is held either on your computer hard disk‚ CD-ROM‚ DVD or on a diskette (floppy disk) and is loaded from the disk into the computers RAM (Random Access Memory)‚ as and when required. Two Types of Computer 1. Mini and Mainframe Computers Very powerful‚ used by large organizations such as banks to control the
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Types of Computer * Analog Computers -most extinct today -can perform several mathematical operations simultaneously -uses continuous variables for mathematical operation -utilizes mechanical or electrical energy * Hybrid Computers -combination of digital and analog computers -digital segments perform process control by conversion of analog signals to digital ones * Mainframe Computers -have the capacities to host multiple operating systems and operate as a number of virtual
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COMPONENTS OF A PERSONAL COMPUTER Can you imagine a world without computers? Computers have changed everyday life in infinite ways that we would have never imagined 50 years ago. Long ago‚ computers were primarily used to compute numbers and to do word processing. As times have changed‚ computers have also evolved to help us with our everyday tasks. Nowadays we even use our computers for personal enjoyment by using them for games and finding information on the Internet. One way computers
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PARTS OF THE COMPUTER All computer systems need two types of parts that work together to make them run. These parts are: 1. Hardware - The hardware is the part of the computer you can touch and see. Eg: Keyboard‚ Mouse‚ Hard disk etc. 2. Software - The software is a part of the computer you cannot touch but is very important. The software is all the programming that makes the computer run; controlling everything that the computer does.
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Communication Technologies (ICT). The market today is divided between Flash memories and hard disk drive. While both currently undergo tremendous increases in performance‚ they also face severe limitations for the mid term future (2015). Beyond the technological barrier Several physical factors related to the magnetic medium that stores the data bits are limiting the increase of density for hard disk drive technology but also for Magnetic Random Access Memory (MRAM) that shows great promise in
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For this assignment I will discuss and evaluate the improvements to computer systems achieved by routine housekeeping procedures and the benefits. Listed below is what I shall be discussing. - Physical cleaning - Disk Defragment - Virus Scanning - Disk Clean up - Disk Checker - Windows updates Physical Cleaning Physical cleaning means that you will clean the keyboard‚ mouse‚ computer screen and check for any errors such as stuck or missing keys on the PCs keyboard. This process involves
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Chapter 1 010100 The Web is just another name for the Internet. (Answer: False) 010200 A computer’s operating system is a type of application software. (Answer: False) 010300 Microcontrollers are special purpose microprocessors that can be embedded in devices such as refrigerators‚ cars‚ and washing machines. (Answer: True) 010400 A bit is a binary digit‚ such as a 1 or 0. (Answer: True) 010500 ASCII‚ EBCDIC‚ and Unicode are used to represent character data. (Answer: True) 010600
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of the following is not a feature of a file system that might be used with a hard disk dirve? A.An actuator arm 9. A student writes a report using a word processor‚ saving the repot in a file called my_report. The student stores the file on his laptop hard disk drive. Later‚ he pasts the file on a file-sharing site for a classmate to review the report. Then‚ he copies an updated version of the file to a flash drive to submit it to his instructor. Which of the following are some of the important
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