23-12-2017, 10:15 AM
COMPUTER
*Computer is an electronic device that receives data, process it and gives meaningful informations.
*The word ‘computer’ is originated from the Latin words ‘Computus’ and ‘computare’ Collection of facts and figures are called
Ans : Data
*Processed data is called
Ans : Information.
*Information conveys a meaningful message
*A set of actions performed by the computer to convert data into information is called
Ans : Data processing
*The word ‘data’ is originated from the Latin word ‘datum’
*The way that computers manipulate data into information is called
Ans : Processing
*A program in execution is called
Ans : Process
*The type of test used in com-puting to check whether or not the password user is a human
(a)Debugging
(b)Cryptanalysis
(c )CAPTCHA
(d) Black Box
Testing Arts : (c ) CAPTCHA
(Sales Asst Gr. II, 2016) CAPTCHA - Completely Automated Public Turing Test to Tell Computers and Humans
Characteristics of computer
*Accuracy * Speed
* Versatility *Automation
*Storage capacity *Reliability
*Diligence
Computer Generation
Generation Examples Year Switching Device
*First - UNIVAC, EDVAC, EDSAC, ENIAC - 1949-55 - Vacuum Tubes (The Vaccum Tube was invented by - John A. Fleming]
*Second - IBM 7000, NCR 304, IBM 650, IBM 1401, ATLAS, MARK 111, IBM 1620, IBM 7094, CDC 1604, CDC 3600, CDC 164 - 1956 - 65 - Transistors
*Third - PDP-8, ICL 2900, IBM 360, IBM 370/168, TDC-316, Honeywell - 6000 series - 1966 - 75 - Integrated circuits
* Fourth - DEC 10, STAR 1000, CRAY-1, CRAY-X-MP - 1975 - 86 - VLSI Micro processor
*Fifth - 1986 - ULSI Micro processor
