Direct Data Entry And Associated Devices
Gbogbo ọrọ náà
Tap a card on a reader and the bus lets you on; wave a phone over a square pattern and a website opens; an exam board feeds ten thousand answer sheets through a machine and the results appear in minutes. None of this involves anyone typing. This is direct data entry, where a device captures data automatically with little or no human effort, faster and more accurately than a keyboard ever could.
In this lesson you will meet the direct data entry devices the Cambridge syllabus requires: magnetic stripe readers, chip and PIN readers, RFID readers, optical mark recognition, optical character recognition, barcode readers and QR code scanners. You will learn how each one captures data, where it is used, and how to weigh its advantages and disadvantages so you can pick the right one for a given system.
Ebumnobi
- Direct data entry.
- Characteristics, uses, advantages and disadvantages of direct data entry devices including: magnetic stripe reader, chip and PIN reader, Radio Frequency Identification (RFID) reader, Optical Mark Recognition/Reader (OMR), Optical Character Recognition/Reader (OCR), bar code reader, QR scanner.
Nkuzi Olu
Gee ntị na nkuzi a na ngwa
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
Ndetu Nkuzi Zuru Ezu di na Ngwa Green Bridge
Nweta ngwa Green Bridge CBT na ekwenti gi ma o bu kompiuta maka ulo akwukwo IGCSE zuru oke: akwukwo ule ndi gara aga, usoro nyocha, eserese uche, kaadi omumu na nkuzi olu.
Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Direct Data Entry And Associated Devices. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which device reads data from a tag using radio waves and needs no line of sight? A. Barcode reader B. RFID reader C. OMR D. Magnetic stripe reader Answer: B
- An examination board needs to read multiple-choice answer sheets where candidates shade boxes. The most suitable device is: A. OCR B. Scanner C. OMR D. QR scanner Answer: C
- Which technology converts a printed document into editable text? A. OMR B. OCR C. Magnetic stripe reader D. Chip and PIN reader Answer: B
- Compared with a barcode, a QR code can: A. Hold less data B. Only be read by a laser scanner C. Hold much more data and be read by a camera D. Never be encrypted Answer: C
- Which is the most secure way of paying with a card in a shop? A. Magnetic stripe B. Chip and PIN C. Barcode D. OMR Answer: B
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Direct Data Entry And Associated Devices? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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Ihe nile ichoro iji nwee ihe ịga nke ọma na JAMB, WAEC & NECO.
