A computer system consists of mainly four basic units; namely input unit‚ storage unit‚ central processing unit and output unit. Central Processing unit further includes Arithmetic logic unit and control unit‚ as shown in the figure:. A computer performs five major operations or functions irrespective of its size and make. These are • it accepts data or instructions as input‚ • it stores data and instruction • it processes data as per the instructions‚ • it controls all operations inside a computer
Premium Computer Computer data storage Personal computer
Uses of Computers in different Fields Our daily encounters with and dependence upon technology is almost invisible as it takes the shape of electronic climate control system‚ wireless communication systems such as phones and pagers‚ automatic tellers to dispense money. Magnetically striped cards to facilitate consumer transactions‚ cable and satellite television‚ auto mobiles and mass transit. Free trade agreements have led to globalization of commerce and scientific debate about global
Premium Computer Computer science
Applications of Silicon Silicon is one of man’s most useful elements. In the form of sand and clay it is used to make concrete and brick; it is a useful refractory material for high-temperature work‚ and in the form of silicates it is used in making enamels‚ pottery‚ etc. Silica‚ as sand‚ is a principal ingredient of glass‚ one of the most inexpensive of materials with excellent mechanical‚ optical‚ thermal and electrical properties. Hyperpure silicon can be doped with boron‚ gallium‚ phosphorus
Premium Silicon
STATISTICAL APPLICATIONS Hsiao Chun Teng HCS/438 July 15‚ 2013 Stephen Young STATISTICAL APPLICATIONS The pie chart shows percentage among adults with diagnosed diabetes receiving treatment of insulin or oral medication. It is normally used to present the data. I believe that this was a proper graph used to present the data. The information is clear. The data was presented in a good visual that I could recognize the patterns and trends. The colors used to differentiate type of treatment
Premium Diabetes mellitus type 1 Chart Bar chart
parents recognized his intelligence and decided to enroll him in Lakeside‚ a private school known for its intense academic environment. This decision had far reaching effects on Bill Gate’s life. For at Lakeside‚ Bill Gates was first introduced to computers. BILL GATES: CHAIRMAN William (Bill) H. Gates is chairman of Microsoft Corporation‚ the worldwide leader in software‚ services and solutions that help people and businesses realize their full potential. On June 27‚ 2008‚ Gates transitioned
Premium Microsoft Office Microsoft
Grace Loraine M. Borres BSCOE II-3 Assignment No. 1 An internal bus serves as the communication highway of the motherboard. It links the different parts of the computer to the CPU and the main memory. Its primary task is to send data and instructions to the different parts within the motherboard‚ including the external bus. The external type of motherboard bus‚ which is also known as the expansion bus‚ serves as the interface for peripheral devices like hard disks‚ CD-ROM drives‚ and flash
Premium Computer Motherboard PCI Express
Computer Security Many commercial software packages are designed with computer security features that control who can access the computer. These types of access controls use a process called identification and authentication. Identification verifies that the user is a valid user‚ and authentication verifies that the user is who he or she claims to be. Three common methods of authentication are remembered information‚ possessed objects‚ and biometric devices. With remembered information‚ a
Free Authentication Password Computer security
c) None of these Q6. A CD-ROM is a) An optical ROM b) A magnetic ROM c) An erasable ROM c) None of these Q7. Software designed for a specific purpose is called as a) System software b) Compiler c) Specific software d) Application software Q8. One of the is not an output device a) Plotter b) Printer c) MICR d) Smart and intelligent terminal Q9. A floppy disk translator is best describe as a) Tracks b) Sectors c) Track and Sectors c) Heads and
Premium Floppy disk Hard disk drive Computer
Computer graphics are graphics created using computers and‚ more generally‚ the representation and manipulation of image data by a computer. The development of computer graphics has made computers easier to interact with‚ and better for understanding and interpreting many types of data. Developments in computer graphics have had a profound impact on many types of media and have revolutionized animation‚ movies and the video game industry. Overview The term computer graphics has been used in a broad
Premium Computer graphics
As we all know‚ computers can be found everywhere these days. They have changed the way we think‚ live and study‚ etc. The fact that computers have made incredible changes to our society‚ makes them very special invention. Although they might be only as important as other inventions such as electricity‚ airplanes‚ etc‚ it is their ability to be programmed to perform an amazing variety of tasks distinguishes computers from all the other inventions. Computers are playing an effective role in different
Premium Computer Personal computer Computer software