Free Essay

Computer

In: Computers and Technology

Submitted By ap19901201
Words 1991
Pages 8
|COLUMN |
|Unit/Item No. | |
|Service | |
|Licensor | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check column for safe entry – Oxygen ………….% | | | | |
|2. Check per vendor’s drawing, specification and instructions: | | | | |
|A) Internals installation completed | | | | |
|B) Internal pipes installed with correct bolts and gaskets | | | | |
|C) Instrument nozzles at right location, clear no obstructions | | | | |
|D) All column nozzles at right location, clear no obstructions | | | | |
|3. Tray orientation, supporting & installation, correct and secure | | | | |
|4. Levelness/Flatness of Trays correct | | | | |
|5. Leak test draw-off pan completed | | | | |
|6. Seal pans, drain holes provided as per drawing | | | | |
|7. Tray elevation against column nozzles checked | | | | |
|8. Distribution spargers, vent holes provided as per drawing | | | | |
|9. Tray manways boxed up and secure | | | | |
|10. Inspect inside column and internals for cleanliness, accepted | | | | |
|11. Final box-up man-ways (inspect man-way flanges for damage) | | | | |
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|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|PACKED COLUMN |
|Unit/Item No. | |
|Service | |
|Licensor | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check column for safe entry – Oxygen ……………% | | | | |
|2. Check per vendor’s drawing, specification and instructions: | | | | |
|A) Internals installation completed | | | | |
|B) Internal pipes installed with correct bolts and gaskets | | | | |
|C) Instrument nozzles at right location, clear no obstructions | | | | |
|D) All column nozzles at right location, clear no obstructions | | | | |
|3. Packed bed supporting and elevation checked and secure | | | | |
|4. Packed bed material checked against specification | | | | |
|5. Distribution spargers, vent holes provided as per drawing | | | | |
|6. Inspect inside column and internals for cleanliness, accepted | | | | |
|7. Final box-up man-ways (inspect man-way flanges for damage) | | | | |
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| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|DRUM / VESSEL |
|Unit/Item No. | |
|Service | |
|Licensor | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check drum/vessel for safe entry – Oxygen ………..% | | | | |
|2. Check per vendor’s drawing, specification and instructions: | | | | |
|A) Internals installation completed, lining not damaged | | | | |
|B) Internal pipes installed with correct bolts and gaskets | | | | |
|C) Instrument nozzles at right location, clear no obstructions | | | | |
|D) All vessel nozzles at right location, clear no obstructions | | | | |
|3. Demister pad correctly installed, secure & no bypassing | | | | |
|4. Vortex breakers in pump suctions installed | | | | |
|5. Vessel Weir height checked | | | | |
|6. Inlet pipes & distribution pipes built/installed as per design intent | | | | |
|7. Inspect inside vessel and internals for cleanliness, accepted | | | | |
|8. Final box-up man-ways (inspect man-way flanges for damage) | | | | |
| | | | | |
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|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|REACTOR |
|Unit/Item No. | |
|Service | |
|Licensor | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check reactor for safe entry – Oxygen ………% | | | | |
|2. Check per vendor’s drawing, specification and instructions: | | | | |
|A) Internals installation completed | | | | |
|B) Internal pipes installed with correct bolts and gaskets | | | | |
|C) Instrument nozzles at right location, clear no obstructions | | | | |
|D) All reactor nozzles at right location, clear no obstructions | | | | |
|3. All millscale removed, accepted | | | | |
|4. Catalyst bed supporting and elevation checked and secure | | | | |
|5. Catalyst checked against specification | | | | |
|6. Catalyst loaded as per licensor procedure | | | | |
|7. Distribution spargers built/installed as per design intent | | | | |
|8. Inspect inside reactor and internals for cleanliness, accepted | | | | |
|9. Final box-up man-ways (inspect man-way flanges for damage) | | | | |
| | | | | |
|Note: Catalyst loading report Sub-contractor to be included! | | | | |
|Save Catalyst and Catalyst Support Samples! | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|FIRED HEATER |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check the fired heater as per vendor’s drawing, specification and instructions | | | | |
|2. Make sure the following is complete: | | | | |
|A) Structure and casing installation – free thermal expansion | | | | |
|B) Instrument nozzles at right location, clear no obstructions | | | | |
|C) Peep doors / access doors / explosion doors / operational | | | | |
|D) Expansion joints heat insulation installation – no air leaks | | | | |
|E) Stack or duct dampers proper functioning & position indicators checked; | | | | |
|Stack transportation blinds removed | | | | |
|F) Tube anchors | | | | |
|G) Tube expansion clearance | | | | |
|H) Refractory, visual inspection | | | | |
|I) Tube supports and guides | | | | |
|J) Convection bank – no air leaks | | | | |
|K) External insulation | | | | |
|L) Burners / Igniters / Flame Detectors installation - clean | | | | |
|M) Spring hangers/ spring supports – cold/hot setting | | | | |
|N) Tube skin temperature indicators, fixation secure | | | | |
|O) All nozzles at right location, clear no obstructions | | | | |
|Correct Installation of temperature elements and oxygen | | | | |
|analyzer elements, insertion length, etc. | | | | |
|Q) Inspect inside Heater & internals for cleanliness, accepted | | | | |
|R) Final box-up | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|STEAM TURBINE |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check the equipment as per vendor’s drawing, specification and instructions | | | | |
|2. Make sure the following are complete: | | | | |
|A) All bolts fastened | | | | |
|B) Direction of rotation check | | | | |
|C) Check free rotation of turbine rotor | | | | |
|D) Governor and trip system checked – Trip & Throttle valve | | | | |
|E) Cold and 2nd hot alignment as per manufacturer’s tolerance | | | | |
|F) Overspeed trip setting check | | | | |
|G) Instruments on turbine installed | | | | |
|H) Turbine mechanical run-in test, accepted (inlet steam piping, target blown) | | | | |
|I) Hot alignment done, coupling & coupling guard installed | | | | |
|J) Lubricant system cleaned, filled and operable | | | | |
|K) Steam and cooling water piping cleaned and operable | | | | |
|L) RPM speed indicator operable | | | | |
|M) Turbine safety valve set/calibrated | | | | |
|N) Thermal insulation complete | | | | |
|O) Bearing temperature & vibration checks done, accepted | | | | |
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| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

|AIR COOLED FD FAN |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate details against data sheets | | | | |
|2. Check for any installation damage, specially to fins and louvers | | | | |
|3. Check that equipment is installed in accordance with drawings & specifications, | | | | |
|with shipping bolts removed. | | | | |
|4. Check expansion slots on sliding feet, free expansion | | | | |
|5. Check earthing | | | | |
|6. Check fan, driver and louvers for freedom of movement | | | | |
|7. Confirm driver/fan checked for correct rotation (airflow up / down) | | | | |
|8. Lubrication system cleaned and operable | | | | |
|9. Check driver bearing lubrication | | | | |
|10. Cold/hot alignment as per manufacturer’s tolerance done | | | | |
|11. Driver mechanical run-in test, accepted | | | | |
|12. Drive belt tension correct, safety guard in place and secured | | | | |
|13. Check installation of fan guard, secure | | | | |
|14. Fan blade angle set for maximum amperage, check vibration | | | | |
|15. Variable speed/pitch checked for rpm, amperage & vibration | | | | |
|16. Motor/driver bearing temperatures and vibration checked | | | | |
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|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

|BLOWER |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate details against data sheets | | | | |
|2. Excess piping strain alleviated | | | | |
|3. Final cold alignment to manufacturer’s tolerance | | | | |
|4. Check blower and driver for freedom of movement | | | | |
|5. Driver mechanical run-in test, accepted | | | | |
|6. Driver checked for correct rotation (uncoupled) | | | | |
|7. Gear unit checked per gear unit check list (when applicable) | | | | |
|8. Bearing lube system clean and operable | | | | |
|9. Final hot 2nd alignment as per manufacturer’s tolerance | | | | |
|10. Belt or coupling guard in place and secured | | | | |
|11. Vibration, amperage & bearing temperatures checked with damper at 100 % open | | | | |
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|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

|PROPORTIONAL/METERING/RECIPROCATING PUMP |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate details against data sheets | | | | |
|2. Check for any installation damage | | | | |
|3. Check that pump, gearbox, coupling, and baseplate are installed in accordance | | | | |
|with specifications and approved drawings | | | | |
|4. Verify that all internals are properly installed | | | | |
|5. Check that temporary strainer, with a finer mesh than job strainer, has been | | | | |
|installed (if required) | | | | |
|6. Check suction and discharge piping is clean and supported | | | | |
|7. Check that coupling and coupling guard have been installed | | | | |
|8. Bearing house flushed & lubricated, lubricator filled (if required) | | | | |
|9. Motor rotation checked, accepted | | | | |
|10. Verify internal leakage of discharge to suction Safety Relief Valve (PSV) and | | | | |
|calibration setting | | | | |
|11. Check manually adjusted stroke control is lubricated and moving freely | | | | |
|12. Fully open suction/discharge valves (never run a reciprocating pump with a | | | | |
|closed discharge or primed suction valve) | | | | |
|13. Check volumetric capacity against data sheet & pump curve | | | | |
|14. Check vibration, temperature, head, noise and amperage | | | | |
| | | | | |
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| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

|STORAGE TANK / TANK |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check tank for safe entry – Oxygen .…….% | | | | |
|2. Check nameplate details against data sheets | | | | |
|3. Check location, elevation, orientation of nozzles, as per drawing. | | | | |
|4. Check for any transportation or installation damage | | | | |
|5. Check that vessel and internals are installed in accordance with approved | | | | |
|drawings and secured ( including heating coils, if any) | | | | |
|6. Clean, remove mill scale and scale flakes | | | | |
|7. Check visual appearance of linings and coatings (if any) | | | | |
|8. Check all nozzles are free and clear of obstructions | | | | |
|9. Check vessel internally for cleanliness | | | | |
|10. Check earthing strap fixation | | | | |
|11. Check all platforms and ladders are in accordance with approved drawing and that| | | | |
|man-ways are accessible and suitable for operation | | | | |
|12. Check proper functioning of tank PVRV breathing valves | | | | |
|13. Final box-up man-way (inspect man-way flange for damage) | | | | |
| | | | | |
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| | | | | |
| | | | | |
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| | | | | |
| | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

|AGITATOR |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate details against data sheets | | | | |
|2. Check location, elevation, orientation and that shaft is correctly installed | | | | |
|3. Check for any installation and transportation damage | | | | |
|4. Check that equipment is installed in accordance with specification and approved | | | | |
|drawings | | | | |
|5. Check equipment cleanliness | | | | |
|6. Check and clean mechanical seal system and fill with barrier fluid, if required. | | | | |
|7. Check free rotation of shaft in correct direction, check concentricity and that | | | | |
|rotor does not foul with tank internals | | | | |
|8. Check that there is adequate space to withdraw agitator with suitable lifting | | | | |
|gear – maintainability. | | | | |
|9. Check that bolting is suitably lubricated | | | | |
|10. Motor run-in, 4 hours, accepted (if required) | | | | |
|11. Motor rotation checked, accepted | | | | |
|12. Check lubrication (if any) | | | | |
|13. Check bearing temperatures, vibration and amperage | | | | |
| | | | | |
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| | | | | |
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| | | | | |
| | | | | |
| | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |
|SAND FILTER |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate details against data sheets | | | | |
|2. Check nozzle elevation, location and orientation | | | | |
|3. Vessel internally clean, millscale removed, accepted | | | | |
|4. Check all nozzles are clear; install final specification gaskets | | | | |
|5. Sand bed supporting and elevation checked and secure | | | | |
|6. Sand & supports checked against specifications | | | | |
|7. Check that the holding down sand supporting is as per drawing | | | | |
|8. Check that ladders, platforms and handrails are in accordance with approved | | | | |
|drawings and are suitable for normal operation of the filter package – | | | | |
|unloading/reloading | | | | |
|9. Sand loading completed as per procedure | | | | |
|10. Final box-up man-ways (inspect man-way flanges for damage) | | | | |
| | | | | |
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| | | | | |
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| | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|LICENSOR | | | |
|COMPANY | | | |

|CENTRIFUGAL PUMP |
|Unit/Item No. | |
|Service | |
|Reference Doc. (QA/QC) | |
|Reference Drawings | |
|ACTIVITIES |CHECKED |BY |DATE |REMARKS |
| |OK | | | |
|1. Check nameplate against data sheets | | | | |
|2. Base-plate properly grouted to foundation, drain-line provided | | | | |
|3. Check-valves, drain-, vent, slops and flare-lines installed as per manufacturer | | | | |
|drawings, PID and seal drawings | | | | |
|4. Multi-stage pumps housing vent provided to flare/slop as per Drw | | | | |
|5. Suction & Discharge valves operational | | | | |
|6. Suction strainer accessible for cleaning | | | | |
|7. Driver 4-hr no load test, done | | | | |
|8. Driver checked for correct rotation (uncoupled) | | | | |
|9. Temporary suction screen installed, after flushing | | | | |
|10. Hot 2nd alignment to manufacturer’s tolerance | | | | |
|11. Check pump and driver for freedom of movement | | | | |
|12. Bearing housing flushed and re-lubricated, lubricator filled | | | | |
|13. Check motor bearing lubrication (if required) | | | | |
|9. Mechanical seal or packing installed, cleaned, filled with barrier fluid and | | | | |
|fully operational as per design intent manufacturer | | | | |
|10. Coupling guard in place and secured | | | | |
|11. Mechanical seal alarms checked and operational | | | | |
|12. Check instrument alarms/shutdown settings, where provided | | | | |
|13. Check cooling water supply to bearings, cooler, stuffing box, etc. | | | | |
| | | | | |
| | | | | |
|ATTESTED BY |NAME |DATE |SIGNATURE |
|YOUR COMPANY NAME | | | |
|VENDOR (if required) | | | |
|COMPANY | | | |

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...ile Format: PDF/Adobe Acrobat - Quick View by G Vink - 1998 - Cited by 1 - Related articles software-hardware interface debugging in an embedded environment. ... materials and processes used in manufacturing semiconductors, through to electronic design tools, packaging .... Next to this, for him, peripheral simulation is ... www.tasking.com/resources/debugtechn-trends.pdf ► The Technology Of Hims: Hardware, Software, Peripheral And ... Nov 9, 2010 ... The Technology of HIMS: Hardware, Software, Peripheral and Processes. Healthcare Information Management Systems (abbreviated as HIMS) are ... www.termpaperwarehouse.com/...Technology-Of-Hims-Hardware-Software/ 25880 - Cached About: Macs - Macintosh Hardware & Software Reviews, Tips, Guides ... Jan 9, 2011 ... Get the inside scoop on Macintosh hardware and software, plus tips ... Take a look at the process my wife and I experienced when we took the ... macs.about.com/ - Cached - Similar Motion Computing - Tablet PCs and Peripherals - Alliance Partners ... Sharing databases and processes, they'll help you improve communication and ... B Sharp Technologies is a software and services company providing web-based healthcare ... medical record) and HIM (health information management) software to .... in software licenses, software upgrades, hardware, and IT support. ... www.motioncomputing.com/partner/alliance.asp - Cached - Similar Critical Success Factors in Establishing the Electronic Health ... The electronic health record...

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...What is Computer : Computer is an electronic device that is designed to work with Information.The term computer is derived from the Latin term ‘computare’, this means to calculate.Computer can not do anything without a Program.it represents the decimal numbers through a string of binary digits. The Word 'Computer'usually refers to the Center Processor Unit plus Internal memory. Computer is an advanced electronic device that takes raw data as input from the user and processes these data under the control of set of instructions (called program) and gives the result (output) and saves output for the future use. It can process both numerical and non-numerical (arithmetic and logical) calculations.The basic components of a modern digital computer are: Input Device,Output Device,Central Processor. A Typical modern computer uses LSI Chips. Charles Babbage is called the "Grand Father" of the computer.The First mechanical computer designed by charles Babbage was called Analytical Engine. It uses read-only memory in the form of punch cards. Four Functions about computer are: accepts data | Input | processes data | Processing | produces output | Output | stores results | Storage | Input (Data): Input is the raw information entered into a computer from the input devices. It is the collection of letters, numbers, images etc. Process: Process is the operation of data as per given instruction. It is totally internal process of the computer system. Output: Output...

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...The History of Computers From primitive abaci to lab tops and calculators, the computer has evolved through time to become the essential part of our technocratic society. The development of the computer has shaped the way technology and science is viewed in different cultures around the world. The connotation of what a computer is nowadays brings to mind a monitor, keyboard, processor and its other electronic components; however, that is not how things have always been. From the Chinese using abaci to count, to the Druids' usage of stones to follow the seasonal changes, to the Europeans using Pascalines and calculators to work out mathematical problems the concept of the computer has been around for hundreds of years (Hoyle). Therefore, the history of computers is important to observe not only for the influence it brought to our culture, but the progress it has made through time. The history of modern computers has been influenced by the earlier advancement of primordial technology. The abacus developed in circa 500 B.C for example, used pebbles, rocks, beads, or shells to keep track of the counters numbers. Furthermore, "the abacus was man's first attempt at automating the counting process" (Hoyle). In addition, the Pascaline, invented and built by a French philosopher and mathematician Blaise Pascal, was the first mathematical adding machine (Long 54). The Pascaline was a gear-driven machine that allowed the user to calculate answers without doing arithmetic (Hoyle). In...

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...Computer A computer is a programmable machine that receives input, stores and manipulates data, and provides output in a useful format. A computer can process data, pictures, sound and graphics. They can solve highly complicated problems quickly and accurately. Block Diagram Input Unit: Computers need to receive data and instruction in order to solve any problem. Therefore we need to input the data and instructions into the computers. The input unit consists of one or more input devices. Keyboard is the one of the most commonly used input device. Other commonly used input devices are the mouse, floppy disk drive, magnetic tape, etc. All the input devices perform the following functions.  Accept the data and instructions from the outside world.  Convert it to a form that the computer can understand.  Supply the converted data to the computer system for further processing. Storage Unit: The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed. It preserves the intermediate and final results before these are sent to the output devices. It also saves the data for the later use. Memory Size: All digital computers use the binary system, i.e. 0’s and 1’s. Each character or a number is represented by an 8 bit code. The set of 8 bits is called a byte. A character occupies 1 byte space. A numeric occupies 2 byte space. Byte is the space occupied in the memory. The size of the primary storage...

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...COMPUTER HARDWARE AND COMPONENTS COMPUTER HARDWARE AND COMPONENTS Computer Basics     Equipment (Hardware) COMPUTER | A machine that processes information and performs computations. | Tower or Desktop | The "box" or case that holds the parts that make up a computer:  CPU, hard disk drive, floppy drive, memory chips, power supply, interface cards, etc. Click here to learn more. | |      CPU | Central Processing Unit, or "brains" of the computer | Monitor | An output display device (looks similar to a TV) in a computer system.  You see information on the monitor's screen. | |      Screen | The viewing area on a monitor or the information or image displayed. | | | | Disk Drive | A device that reads data from (input) or records data onto a disk for storage (output). |     Floppy  | Floppy Drive | . 3-1/2" Floppy Disk |     Hard Drive | The main device that a computer uses to store information. Most computers come with a hard drive, called drive C, located inside the computer case. |     CD-ROM | ROM means Read-Only-Memory - you can only "read" information, not save. A CD can store a large amount of data including documents,  photographs, software, and music (about 20 songs) | | CD Drive | Compact Disk | | CD-R A CD-Recordable drive can put data onto a disk in just one session, and then is "closed" - one "burn" only - you can't add to it after you create it.  | CD-RW A CD-ReWritable drive can be written onto more than once - similar...

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...(introduction) What is a Computer? B. History of computers C. (thesis) Types of computer 4.1 Supercomputer 4.2 Mainframe 4.3 Workstation 4.4 The Personal Computer or PC 4.5 Microcontroller 4.6 Server D. Hardware & software 5.7 hardware 5.8 software 5.9 firmware E. Basic operations 6.10 input 6.11 output 6.12 processing 6.13 storage F. Names for different sizes of data 7.14 Bit 7.15 Byte 7.16 kB 7.17 MB 7.18 GB 7.19 TB 7.20 PB G. Measurement of data speed 8.21 Mbps 8.22 Gbps H. Purpose of computer 9.23 performing calculations 9.24 storing data 9.25 retrieving data 9.26 processing data INTRODUCTION: WHAT COMPUTER IS? I. What is computer? A computer is a "box" that you put some "stuff" in, the box does "stuff" with it, and then the box has some way of showing the world what it's done. The stuff you put into a computer is called data, and gets into the computer using the input. Data is simply a form of information. You can put data into a computer by your keyboard, a mouse, a trackpad, a camera, an infrared sensor; anything that will give the computer more information about the world around it. Based on what information the computer has gotten, it can decide to do stuff with it. What the computer does with information is known as processing. A computer will process information...

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...types of computers, the computers are classified according to their functions and capabilities, as: Sample essay analysis ... Types of Computers - College Essay - Scodger - StudyMode.com www.studymode.com › ... › Computers & Internet › Computer Hardware‎ Types of computers. Firstly, what is a computer? Well, a modern computer is typically an electronic or digital device that manipulates data. Computers can ... Types of Computers - Term Papers - Maliktaimurarif www.termpaperwarehouse.com › Computers and Technology‎ May 9, 2012 - Read this essay on Types of Computers . Come browse our large digital warehouse of free sample essays. Get the knowledge you need in ... History of Computers Essay - Custom Writing Service www.customwritings.com/blog/...essays/history-computers-essay.html‎ You can order a custom essay, term paper, research paper, thesis or dissertation on History of Computers topics at our professional custom essay writing service ... Computer Technology Essay - Custom Writing Service www.customwritings.com/blog/...essays/computer-technology-essay.html‎ Free sample essay on Computer Technology: Since the beginning of time ... Computers play a significant role in the school system as well. ... Categories. Essay of computer and its uses - WikiAnswers wiki.answers.com › ... › Categories › Technology › Computers‎ ... Categories > Technology > Computers > Essay of computer and its uses? ... computer is a...

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...Computers Today’s generation could never ever imagine in their wildest dreams about the world, ages before, when there were no computers or any other technologies. So much we have advanced that now every information is just a click away and is in your hands 24/7. All this advancement was possible only with the introduction of a small device called the “Computer”. Basically, computer is a device that accepts the message by the imputer and processes this message and stores the information at the storage devices and later gives an output of the message through the output devices. A simple explanation of the computer. Normally, a computer consists of a processing unit called the Central Processing Unit or the CPU and a form of memory. In the years between 1940 and 1945 were the first electronic digital computers developed. The initial sizes were as big as a room and consumed power as much as today’s personal computers. Initially, computer was related to a person who carries out calculations or computations and as such the word computer was evolved in 1613 and continued till the end of 19thcentury. Later it as re-described as a machine that carries computations. The early computers were limited in their functions. It was the fusion of automatic calculation and programmability that produced the first computers that were recognized in 1837. Charles Babbage in 1837 was the first to introduce and design a fully programmed mechanical computer, his analytical engine. Due to limited finances...

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...The computer is the most wonderful gift of science to the modern man. The computer can do all the works of man. Thus, after the invention of computer, the gap between man and machine has been bridged up. The dictionary meaning of the word "Computer" is an electronic calculating machine. It is derived from the word compute which means to reckon. But the function of the computer has expanded beyond the act of reckoning. Though a machine, it contains and provides innumerable information's and artificial intelligence of a very high order. It may seem strange, but it is true that the memory and intelligence of a computer can surpass those of a living human being. The mechanism of the computer is very simple. Information processing is the essence of computing. It is a data based machine. The data is fed into the machine. The machine is manipulated and then the due information is retrieved. Computer was invented due to the pressures of World War-II which witnessed the use of such sophisticated weapons as night bombers, submarines, and long range guns on ships and tanks, etc. The defenders have to fight back by shooting at targets and those targets of the enemy can be located by radar. Radar can inform not only about the location of the enemy but also about the direction and the speed of the enemy weapons. Detailed mathematical calculations are necessary to find out these things accurately. Firing tables are required by the front line soldiers. Thus the necessity of calculations...

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