Before computers there were not telephone answering machines‚ handheld calculators‚ fax machines‚ personal computers. People did what they had to do without these things. People wrote letter by hand or with a typewriter‚ they also kept track of data and numbers in ledgers. They were not texting each other‚ there was either in person or over the phone. . Computers are integral to our daily lives and there are millions used daily. Computers are used at home‚ work‚ and school. They are also embedded
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UNESCO-NIGERIA TECHNICAL & VOCATIONAL EDUCATION REVITALISATION PROJECT-PHASE II NATIONAL DIPLOMA IN COMPUTER TECHNOLOGY Computer System Troubleshooting1 COURSE CODE: COM 216 YEAR 2 SEMESTER 1 THEORETICAL BOOK Version 1: December 2008 Table Of Content Opening the Display Properties Panel ....................................................................... 107 The Layout of the Panel ............................................................................................. 108
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• The amount of RAM can be one of the largest factors in your overall computer performance. • For the processor to communicate with the rest of the system‚ the processor plugs in or connects to a large circuit board called the motherboard or system board. The motherboard allows the processor to branch out and communicate with all of the other computer components. • Instructions that control most of the computer’s input/output functions‚ such as communicating with disks‚ RAM‚ and the monitor kept
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the access time on a disk is defined ? Explain each of the component of access time with the help of an example. Explain the basic structure of a computer system ? With the help of a diagram . A personal computer has a component called motherboard. How is motherboard related to the basic computer structure ? (c) 6 BCS-011 1 P.T.O. List five facilities that are provided by an operating system to a user or to a program. Draw a flow chart to add integer between 2 to (n+1) where n>2
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chassis What are common components inside the system unit? • Processor • Memory module • Expansion cards o Sound card o Modem card o Video card o Network interface card • Ports and Connectors What is the motherboard? • Main circuit board in system unit • Contains chips‚ integrated circuits‚ and transistors • Also called system board What chip packages are available? • single edge contact (SEC) cartridge • dual inline package (DIP) • flip chip-PGA
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59 PREVENTIVE MAINTENANCE CONTENTS AT A GLANCE Protecting Your Data Step 1: File backups Step 2: CMOS backups Cleaning Step 3: Clean the case Step 4: Clean the air intake Step 5: Clean the speakers Step 6: Clean the keyboard Step 7: Clean the monitor Step 8: Clean the mouse Step 9: Check external cables Step 10: Clean the floppy drive Step 11: Clean the tape drive Step 12: Check the CD tray Step 13: Check the sound system Step 14: Check color purity Step 15: Check the
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size because it has many parts. The upper part is the screen which is equivalent to a desktop’s monitor. In newer models‚ a webcam is incorporated in the upper part of the laptop. The lower part is where most of the other parts are. It has the motherboard‚ microprocessor‚ the hard disk‚ a CD drive‚ the keyboard‚ a touchpad used for navigation and a substitute for the mouse and the speakers. This is also where the ports are located. You can choose to add other parts to your laptop aside from the "main"
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The Power On Self Test When the system is powered on‚ the BIOS will perform diagnostics and initialize system components‚ including the video system. (This is self-evident when the screen first flicks before the Video Card header is displayed). This is commonly referred as POST (Power-On Self Test). Afterwards‚ the computer will proceed its final boot-up stage by calling the operating system. Just before that‚ the user may interrupt to have access to SETUP. To allow the user to alter the CMOS
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ECO FRIENDLY DATABASE Varun Chauhan MBA Student‚ Delhi Institute of Advanced Studies Pranav Kharbanda MBA Student‚ Delhi Institute of Advanced Studies Vindhya Chhabra B.Tech Student‚ Delhi Technical University (IT) Sumit Jain MBA Student‚ Delhi Institute of Advanced Studies ECO FRIENDLY DATABASE ABSTRACT 2. GREEN DATABASE Database should utilize several modern hardware capabilities. The purpose
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a backup of all your information you need. 5. If a person does not have his/her flash-drive‚ how can a student still save and retrieve his/her assignments? –Email. 6. A. Can a CPU (Central Processing Unit) on a motherboard be replaced? –No it’s a part of the motherboard. B. What does CPU stand for? –Central Processing Unit. 7. What is the name of the operating system installed on all new PCs? –Windows 7. 8. Approximately‚ what percentage of all the PC computers in the world use
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