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
provided by the sensor and sending the barcode’s content to the scanner’s output port. Biometrics Biometrics[1] (or biometric authentication)[note 1] refers to the identification of humans by their characteristics or traits. Biometrics is used in computer science as a form of identification and access control.[2] It is also used to identify individuals in groups that are undersurveillance.[citation needed] Biometric identifiers are the distinctive‚ measurable characteristics used to label and describe
Premium USB flash drive Computer Hard disk drive
and ink usage • Avoids postage and fuel impact • Protects security and privacy • Strengthens legal defensibility Use of Computer Technology in Medicine The Use of Computers in Medicine The use of computer technology has greatly enhanced the medical field. This is particularly so in hospital environments where reliability and quality are critical factors. Many computer applications‚ such as patient information
Premium Cryptography Digital signature Computer
------------------------------------------------- HND Computer and Systems Development ------------------------------------------------- ASSIGNMENT ------------------------------------------------- 2012 – 13 COLLEGE | City of Westminster College | PROGRAMME | HND Computer and Systems Development | MODULE NAME & CODE | Computer Systems Unit 2 (L/601/0446) | STUDENT NAME | | ASSESSOR | Anas Ahmed | ASSIGNMENT NUMBER | ONE | | Tasks | Hand in Dates: | | Task 1 – Report | Friday 14th
Premium Software engineering Operating system Computer
Computer Keyboard (1874 – 1982) Although the first Computer Keyboard came out in 1964‚ it was a long evolution process from 1874-1982‚ to form the modern computer keyboard as we know it... One of the most common electronic input devices available nowadays is the “computer keyboard”. The “keyboard” enters instructions and data into the “memory” of the “computer”. “Keyboards” are used to “program”‚ operate and manage files and programs on a computer “interface”. This is accomplished by users
Premium
Your Registration Now. RESEARCH DOCUMENTS BOOK NOTES AP NOTES StudyMode - Premium and Free Essays‚ Term Papers & Book Notes Home » Chemistry Computer Programming Research Paper By chii2x | March 2013 Zoom InZoom Out Page 1 of 16 Factors Affecting the Performance of the High School Senior Students of St. Peter’s College of Ormoc in Computer Programming A.Y. 2012-2013 A Research Paper Presented to the class of Mr. Francisco V. Calub St. Peter’s College of Ormoc in Partial Fulfillment
Premium Computer Algorithm Computer program
What is a computer: A computer is an electronic device that executes the instructions in a program. A device that accepts data‚ processes the data in accordance with the stored program‚ generates results and usually consists of input‚ output‚ storage‚ Airthmatic logic and control units. A computer has four functions: a. accepts data Input: Data or information written into the computer by user The Information Processing Cycle b.processes data Processing: The calculations performed according
Premium Computer data storage Hard disk drive Computer
Computer Hardware came about when machines needed separate manual actions to be able to perform specific mathematical functions. Luckily in 1941‚ a man by the name of Konrad Zuse invented what was considered the first working‚ fully operable computer. Prior to this‚ most of the calculations were done manually to calculate by people with adding machines. Today these adding machines are better known as calculators. Back then‚ all you had to do is push buttons‚ but in today’s modern software technology
Premium Computer Personal computer Hard disk drive
5 basic operations performed by computer system Inputting Storing Processing Outputting Controlling The internal structure of a computer looks like above: Input unit: Input unit links the external environment with the computer system. Data and instruction must be entered to the computer before performing any competition. Data or instructions can be entered through input devices eg. Key board‚ or any other input devices. Input unit transferred this data into binary coded in short input unit
Premium Input device Computer Arithmetic
Components of a Computer In the realm of modern business‚ computers are essential to success. In this paper‚ I will describe the different hardware (or physical) components of a computer. According to our text “These components include input devices‚ output devices‚ communications devices‚ primary and secondary storage devices‚ and the central processing unit (CPU).” (Stair‚ Reynolds‚ 2003). An input device is any device that transfers information from the outside world to the computer. These can
Premium Computer Computer data storage Integrated circuit