8-sinf o`quvchilari uchun informatika fanidan ikkinchi bosqich

8-SINF O`QUVCHILARI UCHUN INFORMATIKA FANIDAN TEST SAVOLLARI
C variant
1. Kitobdagi axborot 132 KB bo`lsa, uni nechta “informatika” so`zi bilan almashtirish mumkin?
A) 12288 ta B) 12882 ta C) 18822 ta D) 18228 ta
2. HDD nima?
A) Hard Disc Device B) Hiper Disc Drive
C) Hard Disc Drive D) Hard Dedector Device
3 . Chizmaga mos mantiqiy ifodani toping.
A) ˥((A˅B)˄B) B) (˥A˅B)˄B
C) ˥((˥A˄B)˅B) D) ˥((˥A˅B)˄B)
4. Kimning g`oyasi hozirgi kun kompyuterlarining tuzilishiga asos bo`lgan?
A) A. Lavleys B) V. Sjikkard C) Ch. Bebbij D) J. Genri
5. Veb-brauzerlarni aniqlang.
A) AdWiper, Mosaic, Netscape Navigator B) Opera, MS Word, Google Chrome
C) Mozilla Firefox, Opera, Paint D) AdWiper, Locator, Opera
6. Agar A=”5+2=52”, B=”O`zbekiston – mustaqil davlat”, C=”Men 8-sinf o`quvchisiman” bo`lsa, ˥(A˅B˄˥C) ni natijasini aniqlang.
A) “Rost” B) Bilmayman C) “Yolg`on” D) Test hato tuzilgan
7. “Hardware” so`zi ingliz tilidan tarjima qilinganda qanday ma`noni anglatadi?
A) qattiq mahsulotlar B) yumshoq mahsulotlar C) texnik vositalar D) dasturiy vositalar
8. Fayl vuruslari qanday kengaytmali fayllarni zaralatdi?
A) *.COM, *.BAT, *.DLL, *.TXT B) *.COM, *.EXE, *.DLL
C) *.TXT, *.DOC, *.XLS D) *.PPT, *.COM, *.EXE
9. Mantiqiy ifodaning qiymatini toping. (a²-b²=(a+b)(a-b)) ˅ (5²>26) ˄ ˥(111₂=15₈)
A) “Rost” emas B) “Rost” C) “Yolg`on” D) Bilmayman
10. Mantiqiy qo`shish amalini aniqlang.
A) “A or B” B) “A ˅ B” C) “A + B” D) Barchasi to`g`ri
11. =ЕСЛИ( ОСТАТ(15;4)=3;"Men odobli bolaman"; "Men odobli bo`laman")
A) Men odobli bola bolaman B) Men odobli bo`laman
C) Men odobli bo`la olmayman D) Men odobli bolaman
12. Tenglamani yeching. X₂+101₈=111₁₀
A) 101100 B) 101101 C) 101110 D) 101011
13. Axborot qanday xususiyatlarga ega bo`lishi kerak?
A) ishonchli, qimmatli, foydali B) raqamli, diskret, analog
C) matnli, foydali, qimmatli D) qimmatli, ishonchli, to`liq
14. A1=15, B1=10, C1=11 bo`lsa A2=СРЗНАЧ(A1:C1) ning qiymatini aniqlang.
A) 11 B) 12 C) 13 D) 14
15. Axborotlar ustida bajariladigan amallar bilan bog`liq barcha jarayonlar … deb ataladi.
A) axborotlarni qayta ishlash B) axborotli jarayon
C) axborot tehnalaogiyasi D) axborot to`plami
16. Amallarni bajaring. 1011+1001*111=?
A) 1001010 B) 1001001 C) 1010010 D) 10001100
17. “ZiyoNET” ta’lim tarmog`i tashkil etilsh tog`risidagi qaror qachon qabul qilindi?
A) 2006-yil 28-sentabrda B) 2005-yil 28-sentabrda
C) 2005-yil 28-oktabrda D) 2006-yil 28-oktabrda
18. Qurilmalarni qanday elektron sxema boshqaradi?
A) CPU B) Portlar C) Ona plata D) Kontroller
19. A1=”Informatika”, B1=5, A2=СЦЕПИТЬ(ЛЕВСИМВ(A1;B1);"matsiya") bo`lsa A2 ning qiymatini toping.
20. B3:D7 katakchalar blokidagi sonlar ichidan eng kattasining kvadratini A1 katakchada aniqlang. (A1 katakchaga yozilishi lozim bo`lgan buyruqni yozing.)
21. Quyidagi mantiqiy sxema chiqishida qanday qiymat hosil bo`ladi?

22. Ma’lumotlarni xotiraga kiritish va chiqarish dasturi nima deb ataladi
23. Olingan nusxa joylashadigan kompyuter xotirasining maxsus qismi bu –
24. ABS(-5)*КОРЕНЬ(64)-ОСТАТ(55;8) ning natijasini aniqlang.
25. Sichqonchaning o`ng tugmasi yordamida ochiladigan yordamchi ammallar ro`yxati bu –

S	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
J
B

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Javoblar

S	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
J	A	C	D	C	A	A	A	B	B	D	D	C	D	B	B	A	B	D

19. Informatsiya
20. =СТЕПЕНЬ(МАКС(B3:D7);2)
21. 1 yoki ROST yoki TRUE
22. BIOS
23. Bufer
24. 33
25. Kontekt – menyu