baad mein, nirvaat tube ka istemaal kiya gaya. ye bahut tej the, lekin garmi utpann karte the aur filaameints ke jal jaane ke kaaran avishvasaneeya the. fainaaaut aam taur par paanch se saat the, jo tube ke vidyut se heeting dvaara seemit the. 1950 ke dashak mein, filaameint ke saath vishesh "computer tube" viksit kiye gaye jo silikaun ki tarah asthir tatvon ko nikaal dete the. ye kai hajaaron ghante tak chalte hain.
lekha-pareekshak aksar kaate gaye chekon ke samarthan mein anumodit beejakon, vyaya riporton aur anya samarthak pralekhanon ki maujoodagi par dhyaan keindrit karte hain. aapoortikrta se pushtikran ya bayaan ka hona, khaate ke astitv ka samuchit pramaan hai. yeh asaamaanya naheen hai ki lekha-pareeksha ke chaaloo hone tak, inmein se kuchh pralekhan kho jaaen ya glat faailon mein rakhe jaaen. aisi sthitiyon mein lekha-pareekshak namoone ke aakaar ko badhaane ka faisala kar sakte hain.
iski tulana mein atulyakaalik system ka design bahut kathin hota hai kyonki sabhi sambhav samay mein bhi sambhaavit state ka vichaar kiya jaana chaahiye. nyoonatam aur adhiktam samay ke table ke nirmaan ke sabse saamaanya vidhi ke anusaar ismein saare state vidyamaan ho aur vaise state ke mineemaaij ke liye sarkit ko samaayojit kiya jaata hai aur jo iske sabhi hisson ke susangat state mein samay-samay par jaane ke liye sarkit ko baadhya kare. (ise "self-reesinkronaaijeshan" kaha jaata hai.) aise saavdhaan design ke bina sanyogavash atulyakaalik laujik ka utpaadan karna aasaan hai jo "asthir" hai aur vaastavik electronics hai jismein apratyaashit parinaam hote hain kyonki electronic upakaranon ke moolyon mein chhote badlaavon ki vajah se sanchit vilamb hota hai. kuchh sarkit (jaise sinkronaaijr-flip flop, svich debaaunsar aur jo baahari anasinkronaaijd ko atulyakaalik laujik sarkit mein pravesh karne ki anumati deta hai) sahaj roop se apne design mein antarnihit atulyakaalik rahe hain aur is tarah hi vishleshan kiya jaana chaahiye.
EPCglobal - yeh maanakeekaran rooparekha hai jiske ISO niyamon ke anusaar antarraashtreeya maanakeekaran mein jaane ki sabse jyaada sambhaavana hai jaisa ki duniya ke sabhi dhvani maanakon ke saath hai, basharte seemit daayare ke saath na rah rahe hon, seema shulk niyam, havaai yaataayaat ke niyamon aur anya ke roop mein. vartamaan mein bade vitrak aur sarkaari graahak, EPC ko apne samudaaya mein achhi tarah sveekaar kiye jaane vaale ek maanak ke roop mein badhaava de rahe hain, lekin baaki duniya ke liye abhi mukti ke roop mein maanya naheen.
aam taur par teen prakaar ke RFID taig hote hain: sakriya RFID taig, jismein ek baitari hoti hai aur ye sanketon ko svatantr roop se sanchaarit kar sakte hain, nishkriya RFID taig, jismein baitari naheen hoti aur sanket sancharan prerit karne ke liye ek baahari srot ki jaroorat hoti hai aur baitari samarthit nishkriya (BAP) jise jaagane ke liye baahari srot ki aavashyakta hai lekin ismein mahatvapoorn uchch fauravard link kshamata hai jo atyadhik pathan seema pradaan karta hai.
Parakala was appointed to the NSUI central committee as All India Vice President in 1984. It was almost like a token of appreciation by the Congress High Command of his performance as President of the JNU unit and his contribution to the establishment of the organisation in the citadel of left wing student politics. As an office bearer of the central committee of NSUI, he toured several states and universities to organise the activities of the students' wing of the Congress Party. He took up a massive campaign against drug abuse in the university campuses all over the country. With his departure for United Kingdom in October 1986 to pursue his higher studies at the London School of Economics (LSE), there was a break to his political activity. On his return to India in May 1991 he resumed political activity in his native place Narasapuram in West Godavari District. Tragic political events in the country resulted in dramatic political developments. Rajiv Gandhi was assassinated in Sriperumbudur, Tamil Nadu, in the midst of the election campaign and P V Narasimha Rao was elected to lead the Congress Party. After the elections, Narasimha Rao became Prime Minister at the head of a minority government. Parakala family was closely associated with P V Narasimha Rao for a long time, Parakala Seshavataram, Prabhakar's father, being a close political associate of Rao. Narasimha Rao assigned the task of conceiving, designing and building a grand institution to perpetuate the memory of Rajiv Gandhi. He made Parakala as Officer on Special Duty to oversee the implementation of the project 'Rajiv Gandhi National Institute for Youth Development (RGNIYD). It is conceived as an institution to train the youth of India and impart to them skills that are necessary to them to play a vital role in building a modern nation in the 21st century, a theme that was dear to the heart of Rajiv Gandhi. Parakala went around the country to study various institutions, their constitutions, structures, course content etc., and designed the Institute which is functional now under the aegis of Ministry of Human Resource Development. Around this time Parakala was nominated by the Congress High Command to represent the Congress Party at the French Communist Party's Plenary in Paris.

iski tulana mein atulyakaalik system ka design bahut kathin hota hai kyonki sabhi sambhav samay mein bhi sambhaavit state ka vichaar kiya jaana chaahiye. nyoonatam aur adhiktam samay ke table ke nirmaan ke sabse saamaanya vidhi ke anusaar ismein saare state vidyamaan ho aur vaise state ke mineemaaij ke liye sarkit ko samaayojit kiya jaata hai aur jo iske sabhi hisson ke susangat state mein samay-samay par jaane ke liye sarkit ko baadhya kare. (ise "self-reesinkronaaijeshan" kaha jaata hai.) aise saavdhaan design ke bina sanyogavash atulyakaalik laujik ka utpaadan karna aasaan hai jo "asthir" hai aur vaastavik electronics hai jismein apratyaashit parinaam hote hain kyonki electronic upakaranon ke moolyon mein chhote badlaavon ki vajah se sanchit vilamb hota hai. kuchh sarkit (jaise sinkronaaijr-flip flop, svich debaaunsar aur jo baahari anasinkronaaijd ko atulyakaalik laujik sarkit mein pravesh karne ki anumati deta hai) sahaj roop se apne design mein antarnihit atulyakaalik rahe hain aur is tarah hi vishleshan kiya jaana chaahiye.

agar system vaanchhit degree ki vishvastata ke pratinidhitv karne ke liye paryaapt digital deta ka bhandaaran karta hai to parimaaneekaran truti ko kam kiya ja sakta hai. ek nirdhaarit enaalaug sanket ko theek-theek prastut karne ke liye kitni digital data ki aavashyakta hoti hai usaki jaankaari naaikvist-shaannon namoona prameya ek mahatvapoorn nirdesh pradaan karta hai.
New York shahar mahanagar parivhan praadhikran ne ek RFID pareekshan kiya jismein maastarakaard dvaara pepaas ka upayog kiya gaya. yeh pareekshan mukhya roop se IRT leksingatan evenyoo line par kiya gaya jismein anya laainon ke kai vyast station bhi shaamil the. yeh pareekshan 31 May 2009 ko samaapt hua, lekin pepaas ke upayog ke vikalp ko vyaapak paimaane par baad ki taareekh mein pun: shuroo kiya ja sakta hai. MTA, New York shahar ke sabave aur bason par kiraaya bhugataan ke liye smaartalink (PATH dvaara shuroo) ko sveekaar karne aur antat: metrokaard ke ek pratisthaapan ke roop mein chalaane ki sambhaavana ka adhyayan kar raha hai.
kai deshon jaise Ireland, laataviya, estoniya, Netherland, France, Finland, naarve, Canada, Australia, sveedan, Portugal, Singapore, Italy, Indonesia, Bhaarat, lithuaaniya, chili, Spain, aaisalaind, United Kingdom, sloveniya aur maalta ne saarvajanik sthaanon par dhoomrapaan ke khilaaf kaanoon banaaye hain, jinmein baar aur restaurant bhi shaamil hain. restaurant mein bhi kuchh nyaayaalayon ne anumati di hai ki ve sunishchit dhoomrapaan kshetron (ya dhoomrapaan nishedh ke liye) ka nirmaan karein. sanyukt raajya America mein kai raajyon mein restaurant mein dhoomrapaan nishedh hai aur kuchh sharaabakhaanon mein bhi dhoomrapaan nishedh hai. Canada ke praanton mein inador kaaryasthalon aur saarvajanik sthaanon par dhoomrapaan avaidh hai jinmein sharaabakhaane aur restaurant bhi shaamil hain. 31 March 2008 ko Canada ne sabhi saarvajanik sthaanon par dhoomrapaan par pratibandh lagaaya, saath hi saath kisi bhi saarvajanik jagah ke pravesh dwaar ke 10 meter ke bheetar bhi yeh pratibandh laagoo hai. Australia mein dhoomrapaan par pratibandh har raajya mein alag-alag hai. vartamaan mein kveensalaind mein sabhi saarvajanik sthalon ke androoni hisson mein dhoomrapaan par poornataya pratibandh hai (jinmein kaaryasthal, sharaabakhaane, pab aur bhojanaalaya shaamil hain) saath hi saath aavaajaahi vaale samudra tat aur kuchh saarvajanik sthalon ke baahari kshetr shaamil hain. tathaapi, chihnit dhoomrapaan kshetr apavaad hain. Victoria mein train stationon, bas staap aur train staap par dhoomrapaan nishiddh hai aur in saarvajanik sthaanon par jahaan dhoomrapaan se parivhan ka intajaar kar raha gair dhoomrapaan karne wala prabhaavit ho sakta hai aur 1 July 2007 se use sabhi inador saarvajanik sthalon par laagoo kar diya gaya hai. New Zealand aur Brazil mein saarvajanik sthaanon se sanlagn kshetr mein dhoomrapaan karne par pratibandh laga diya hai, jismein mukhya roop se sharaabakhaana, restaurant aur pab shaamil hai. Hongkong mein 1 January 2007 ko kaaryasthal mein dhoomrapaan par pratibandh laga diya gaya jaise restaurant, karaaoke rooms, imaaraton aur saarvajanik park. sharaab parosane vaale baar jinmein 18 varsh ki aayu se kam ke logon ko pravesh naheen dete, ko 2009 tak chhoot di gayi. romaaniya mein railgaadiyon, metro stationon, saarvajanik sansthaanon (jahaan aamtaur par nirdisht sthal baahar hai) aur saarvajanik parivhan mein dhoomrapaan avaidh hai.
uttari America ka relarod udyog, RFID aadhaarit ek svachaalit upakaran pehchaan pranaali sanchaalit karta hai. engine aur roling stock do nishkriya RFID taig se lais hote hain (upakaran ke pratyek chhor par ek-ek laga hota hai); pratyek taig par kootit data, upakaranon ke maalik, gaadi sankhya, upakaranon ke prakaar, eksel ki sankhya aadi ki pehchaan karta hai. upakaran maalik aur car ke number ka upayog, ameriki relarod association ke car soochi daataabes se upakaranon ki bhautik visheshataaon ke baare mein adhik jaankaari nikaalne mein kiya ja sakta hai aur relarod ke niji detaabes se maal ke ladaan, mool, gantavya, aadi ki jaankaari praapt ki ja sakti hai.[20]

dhoomrapaan ka itihaas bahut puraana 5000-3000 E.poo. ke pehle se raha hai jab dakshin America mein krushi utpaadon ki kheti shuroo hui thi; usaka baad mein prayog paudhe ke padaarth ko jalaakaar istemaal ya to durghatanaavash shuroo hua ya upabhog ke anya saadhan ki khoj ke iraade se viksit hua.[1] iska upayog jhaad-foonk ke anushthaanon mein apni tarah se hota raha.[16][page needed] kai praacheen sabhyataaon mein jaise kasadiyon, bhaarateeyon aur cheeniyon mein dhoop jalaana ek dhaarmik anushtaan ka ek bhaag hai, jaise isaraailiyon aur baad ke Catholic aur roodhivaadi krishchiyn church jalaate hain. America mein dhoomrapaan ka mool sanbhavat: jhaadfoonk ke samaarohon mein dhoop jalaane se hua hai lekin baad mein aanand ke liye ya fir ek saamaajik upakaran ke roop mein apnaaya gaya.[2] tambaakoo aur vibhinn helusinojenik (hallucinogenic) nasheele padaarthon ka prayog tanmayaavastha aur aatma ki duniya se sampark mein aane ke liye kiya jaata tha.
ek baar input deta ko sahi maanane ke baad, khud dijaain ko abhi bhi shuddhata ke liye satyaapit kiya jaana chaahiye. kuchh upakaran pravaah, pehle ek dijaain ke utpaadan dvaara design ki pushti karte hain aur fir upakaran pravaah ke liye sangat input deta ke utpaadan ke liye design ki skaining karte hain. yadi scan kiya hua deta, input deta ke saath mel khaata hai, to upakaran pravaah ne shaayad koi trutiyaan pesh naheen ki.
digital masheenein, pehli baar upayogi tab bani jab ek svich ke liye MTBF kuchh sau ghante se oopar ho gaya. fir bhi, inmein se kai masheenon mein jatiltaaen theen, achhi tarah se abhyaas ki jaane waali marammat prakriyaaen aur ek tube ke jal jaane ya ek keet ke ek rile mein fans jaane ke kaaran kai ghanton tak kaam naheen karateen thi. aadhunik traanjistar krut ekeekrut paripth laujik gate mein lagbhag ek treeliyn ghante ka MTBFs hai (1 × 1012)),[krupaya uddharan jodein] aur unki jaroorat hai kyonki unke paas bahut saare laujik gate hai.
kai deshon mein dhoomrapaan ki umr nirdhaarit hai, sanyukt raajya America sahit kai deshon, Europeeya sangh ke adhikaansh sadasya raajyon, New Zealand, Canada, dakshin Africa, isaraail, Bhaarat, Brazil, chili, kosta rika aur Australia mein tambaakoo utpaadon ko naabaaligon ko bechana avaidh hai aur Netherland, ostriya, Belgium, Denmark aur dakshin Africa mein 16 se kam aayu ke logon ko tambaakoo utpaad bechana avaidh hai. 1 sitmbar 2007 ko Germany mein tambaakoo utpaadon ko khareedne ki nyoonatam aayu badhaakar 16 se 18 kar di gayi aur usi ke saath saath great Britain mein bhi 1 October 2007 se yeh seema 16 se 18 kar di gayi.[98] sanyukt raajya America ke 50 mein se 46 raajyon mein nyoonatam aayu 18 varsh hai, Alabama, alaaska, new jersey ke alaava, yoota aur jahaan kaanooni umr 19 varsh hai (New York ke uttari raajya onondaga County ke saath hi saath New York ke lambe aaisalaind ki County sufafolk aur nassoo mein bhi).[krupaya uddharan jodein] kuchh deshon mein tambaakoo utpaadon ko (arthaat khareedne par) bachchon ko dene aur yahaan tak ki dhoomrapaan karne ke kaarya mein sanlagn bachchon ke khilaaf bhi kaanoon hain.[krupaya uddharan jodein] aise kaanoonon ki antarnihit dhaarana hai ki log tambaakoo ke istemaal ke jokhim ke baare mein jaankaar hi upayog ke sambandh mein nirnaya lein. in kaanoonon mein kuchh deshon aur raajyon ne ek dheela pravartan kiya hai. anya kshetron mein cigarette abhi bhi bachchon ko bech rahe hain kyonki ullanghan ke liye jurmaana kam hain ya tulanaatmak roop se bachchon ko bechana laabhakaarak hai.[krupaya uddharan jodein] haalaanki cheen, Turkey aur kai anya deshon mein aam taur par ek bachche ko tambaakoo utpaadon ko khareedne mein kam mushkil ka saamana karna padta hai kyonki aksar unase apne maata-pita ke liye tambaakoo khareedne ke liye dukaan jaane ko kaha jaata hai.
↑ Null, Linda; Lobur, Julia (2006). The essentials of computer organization and architecture. Jones & Bartlett Publishers. pa॰ 121. aai॰aऍsa॰abee॰aऍna॰ 0763737696. http://books.google.com/books?id=QGPHA19GE-IC&pg=PA121&dq=digital++circuits+and+Boolean+logic#v=onepage&q=digital%20%20circuits%20and%20Boolean%20logic&f=false. "We can build logic diagrams (which in turn lead to digital circuits) for any Boolean expression..."
tambaakoo mein sakriya tatv, vishesh roop se cigarette mein patton ko jalaakar aur vaashpeekrut gas ko saans se kheenchakar praapt kiya jaata hai. yeh jald aur prabhaavi dhang se padaarthon ko khoon mein avashoshit kar fefadon mein koshikaaon ke jariye pahunchaaya jaata hai. fefadon mein lagbhag 300 million rakt koshikaaen hoti hai, jiske satah ka kshetrafal 70 m2 (ek tennis court ke aakaar ke baraabar) hota hai. yeh vidhi vifal hai kyonki poora dhuaan saans se naheen kheencha jaata hai aur sakriya padaarthon mein se kuchh maatra jalaaye jaane ki prakriya ke dauraan vaashpeekaran mein nasht ho jaati hai.[9] pipe aur sigaar ka dhuaan uchch kshaarayukt hone ke kaaran saans se naheen kheencha jaata jo shvaasanali aur fefadon ko haani pahuncha sakte hain. tathaapi, cigarette (pH 5.3) ke dhuen ki tulana mein iske uchch kshaarayukt (pH 8.5) hone ke kaaran sangathit nikoteen aur adhik aasaani se munh mein shleshm jhilli ke maadhyam se avashoshit kar leta hai.[45] sigaar aur pipe se nikoteen avashoshan baharahaal cigarette ke dhuen se bahut kam hota hai.[46]
ek baar koi dijaain maujood hai aur satyaapit aur pareekshan yogya hai, to ise utpaadit yogya hone ke liye aksar sansaadhit karne ki aavashyakta hoti hai. aadhunik ekeekrut paripth mein, fotopratirodh ko ujaagar karne ke liye prayukt prakaash ki tarang dairdhya se chhoti visheshataaen hain. utpaadakata software, eksapojr maask mein mukt-paripth ko samaapt karne ke liye hastakshep paitarn jodte hain aur maask ke rijaulyooshan aur kantraast mein vruddhi karte hain.
ham intaranet-too-things (aaeeotee) kee aane vaalee kraanti ke baare mein sun rahe hain aur saal ke lie smaart hom teknolojee kee intar-kanektivitee ka parinaam hai. to holdap kya hai? ham sab ab smaart, jude gharon mein kyon nahin rahate hain? samasya ka ek hissa bahut jyaada pratispardha nahin hai, paryaapt sahayog ke saath-saath baajaar mein bahut saare vyaktigat upakaranon aur aips hain, lekin sab kuchh ek saath ek ekal, seemales upayogakarta anubhav mein baantane ke lie hain. ab jab badee kampaniyaan pahale se hee samaan upayogakarta anubhav (jaise googlai, amezain, aur aippal) mein shaamil ho rahee hain, to mujhe ummeed hai ki aane vaale varsh mein ham is morche par kuchh badee pragati dekhenge.

gharon mein aam taur par vidyut company, telephone company, kebal teleevijn ya upagrah dish seva, akhbaar ka chanda aur anya aisi niyamit sevaaen dendaari lekhe hain. gruhasth log saamaanyat: check ya kredit card ka upayog karte hue, hastachaalit tareeke se maasik aadhaar par inka dhyaan rakhate aur bhugataan karte hain. vyaapaar mein, aam taur par A/P faail mein vyaapak sevaaen shaamil hoti hain aur saamaanya roop se lekhaakaar ya bahi-khaata likhnevaale, jab unhein beejak milta hai to is dendaari khaate mein aane vaale dhan aur jab ve bhugataan karte hain, to is khaate se jaane vaale dhan ke pravaah ki khoj-khabar ke liye lekhaankan software ka prayog karte hain. badi companiyaan ek sangathan ke beejakon ke sansaadhan mein prayukt kaagj aur hastachaalit tatvon ko svachaalit karne ke liye teji se vishesh dendaari lekhon ke svachaalan ka prayog kar rahi hain.
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