Computers – An Introduction A computer is defined as an electronic device that accepts input‚ processes it as per the given instructions and produces meaningful output. The term computer is used to describe a device which is combination of electronic and electromechanical devices. It is derived from the word “Compute” which means Calculation. “Charles Babbage” is known as the father of the computer. Data and Information Data refers to raw facts that are gathered and fed to the computer. A computer
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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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3.1 There are different methods for opening cases. To learn how to open a particular computer case‚ consult the user manual or manufacturer’s website. Most computer cases are opened in one of the following ways: The computer case cover can be removed as one piece. The top and side panels of the case can be removed. The top of the case may need to be removed before the side panels can be removed. 3.2 These are the power supply installation steps: Insert the power supply into the case. Align
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stores in RAM to represent the number 123456789? D. Pixel grid 8. Which of the following is not a feature of the file system that might be used with a hard disk drive? A. An actuator arm 9. A student writes a report using a word processor‚ saving the report in a file called my report. The student stores the file on his laptop hard disk drive. Later‚ he posts 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
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installation process is different than it used to be in previous Microsoft operating systems‚ and notably much easier to perform. Using Vista’s installation routine is a major benefit‚ especially for a server OS. Administrators can partition the system’s hard drives during setup. More importantly‚ they can install the necessary AHCI or RAID storage drivers from a CD/DVD or even a USB thumb drive. Thus‚ error-prone floppies can finally be sent to the garbage bin. Windows Server 2008 can also be installed
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2. CPU (Processor) [pic] 3. SMPS (Switched mode Power Supply) [pic] 4. Cabinet [pic] 5. CPU heat Sink and fan [pic] 6. RAM (Random Access Memory) [pic] 7. HDD (Hard Disk Drive) [pic] 8. FDD (Floppy Disk Drive) [pic] 9. CD-ROM Drive [pic] 10. CD Writer [pic] 11. Different Screws Used [pic] 12. AGP (Accelerated Graphics Port) Card [pic] 13. LAN
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oduction CHAPTER 1: INTODUCTION TO COMPUTER AND INFORMATION TECHNOLOGY 2 Computer and Information Literacy Know how to use a computer is a basic skill Purpose : • To succeed in business • To function effectively in society To fulfill the purpose we should be a computer literate and information literate Computer literate • Must be knowledgeable in how to use a computer Information literate • Must be knowledgeable
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It seems that in today ’s world nothing can be done without a computer‚ but upon a closer look‚ you will find that it is the hardware components and input and output devices that make a computer useful. What is it that determines the speed at which a computer can find a file? How do you get a report from your PC to the members of your next Board meeting? It is the hardware that is used with your computer that allows you to accomplish all of your business needs using your computer. Data input
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simulating a hardware platform‚ operating system (OS)‚ storage device‚ or network resources where the framework divides the resource into one or more execution environments. Even partitioning a hard drive is considered virtualization because you take one drive and partition it to create two separate hard drives. It’s defined as “a method of decoupling an application and the resources required to run it — processor‚ memory‚ operating system‚ storage and network access — from the underlying hardware
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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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