Units Of Information
Akopọ
A phone camera fills a memory card, a film download stalls at ninety per cent, a spreadsheet refuses to attach to an email. Every one of those everyday frustrations is the same question asked in different clothing: how much room does this take up, and how much room is there? Answering it needs one unit that everything else is built from, and a set of names for the very large multiples of that unit that real files actually reach.
This lesson gives you both. You will learn what a bit is and why it is the smallest piece of information there can be, why bits are handled in groups of eight, and the four prefixes this specification examines: kilo, mega, giga and tera. You will also learn something that trips up a lot of candidates and quite a few adults: there are two rival definitions of a kilobyte in circulation, and OxfordAQA has told you in writing which one it will use in your exam.
Awọn Afojusun
- Know that:
- a bit is the fundamental unit of information
- a byte is a group of 8 bits.
- Know that quantities of bytes can be described using prefixes.
- Know the names, symbols and corresponding values for the decimal prefixes:
- kilo, 1 kB is 1,000 bytes
- mega, 1 MB is 1,000 kilobytes
- giga, 1 GB is 1,000 megabytes
- tera, 1 TB is 1,000 gigabytes.
Àwòrán ọpọlọ
A ti ṣe àwòrán kókó yìí kí o lè rí bí àwọn èrò ṣe so pọ̀.
Ṣí àwòrán ọpọlọ nínú áàpù
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Àkọsílẹ̀ Ẹ̀kọ́ Pípé wà lórí Ohun Èlò Green Bridge
Gba ohun èlò Green Bridge CBT sórí fóònù tàbí kọ̀mpútà rẹ fún gbogbo ilé ìkàwé IGCSE: ìwé ìdánwò àtijọ́, ìlànà ìdíwọ̀n, àwòrán èrò, káàdì ìkẹ́kọ̀ọ́ àti ẹ̀kọ́ ohùn.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Units Of Information. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- How many bits are there in one byte? A. 2 B. 4 C. 8 D. 16 Answer: C
- On the 9210 specification, how many bytes are there in 1 kB? A. 8 B. 100 C. 1,000 D. 1,024 Answer: C
- Which of these quantities is the largest? A. 800 kB B. 0.9 MB C. 7,000,000 bits D. 950,000 bytes Answer: B
- A file is 6,000,000 bytes. What is this in megabytes? A. 0.6 MB B. 6 MB C. 60 MB D. 6,000 MB Answer: B
- How many different patterns can be stored in 5 bits? A. 5 B. 10 C. 25 D. 32 Answer: D
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
Ṣiṣẹ́ lórí àwọn ìbéèrè wọ̀nyí nínú ohun èlò náà
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Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Units Of Information? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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