8-sinf o`quvchilari uchun informatika fanidan ikkinchi bosqich

8-SINF O`QUVCHILARI UCHUN INFORMATIKA FANIDAN TEST SAVOLLARI
A variant
1. Axborot qanday xususiyatlarga ega bo`lishi kerak?
A) ishonchli, qimmatli, foydali B) raqamli, diskret, analog
C) matnli, foydali, qimmatli D) qimmatli, ishonchli, to`liq
2. 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
3. Amallarni bajaring. 1011+1001*111=?
A) 1001010 B) 1001001 C) 1010010 D) 10001100
4. 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
5. “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
6. Veb-brauzerlarni aniqlang.
A) AdWiper, Mosaic, Netscape Navigator B) Opera, MS Word, Google Chrome
C) Mozilla Firefox, Opera, Paint D) AdWiper, Locator, Opera
7. Fayl vuruslari qanday kengaytmali fayllarni zaralatdi?
A) *.COM, *.BAT, *.DLL, *.TXT B) *.COM, *.EXE, *.DLL
C) *.TXT, *.DOC, *.XLS D) *.PPT, *.COM, *.EXE
8. Tenglamani yeching. X₂+101₈=111₁₀
A) 101100 B) 101101 C) 101110 D) 101011
9. Kimning g`oyasi hozirgi kun kompyuterlarining tuzilishiga asos bo`lgan?
A) A. Lavleys B) V. Sjikkard C) Ch. Bebbij D) J. Genri
10. Qurilmalarni qanday elektron sxema boshqaradi?
A) CPU B) Portlar C) Ona plata D) Kontroller
11. HDD nima?
A) Hard Disc Device B) Hiper Disc Drive
C) Hard Disc Drive D) Hard Dedector Device
12. Mantiqiy qo`shish amalini aniqlang.
A) “A or B” B) “A ˅ B” C) “A + B” D) Barchasi to`g`ri
13. 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
1 4. Chizmaga mos mantiqiy ifodani toping.
A) ˥((A˅B)˄B) B) (˥A˅B)˄B
C) ˥((˥A˄B)˅B) D) ˥((˥A˅B)˄B)
15. Mantiqiy ifodaning qiymatini toping. (a²-b²=(a+b)(a-b)) ˅ (5²>26) ˄ ˥(111₂=15₈)
A) “Rost” emas B) “Rost” C) “Yolg`on” D) Bilmayman
16. “Hardware” so`zi ingliz tilidan tarjima qilinganda qanday ma`noni anglatadi?
A) qattiq mahsulotlar B) yumshoq mahsulotlar C) texnik vositalar D) dasturiy vositalar
17. =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
18. A1=15, B1=10, C1=11 bo`lsa A2=СРЗНАЧ(A1:C1) ning qiymatini aniqlang.
A) 11 B) 12 C) 13 D) 14
19. ABS(-5)*КОРЕНЬ(64)-ОСТАТ(55;8) ning natijasini aniqlang.
20. Olingan nusxa joylashadigan kompyuter xotirasining maxsus qismi bu –
21. Sichqonchaning o`ng tugmasi yordamida ochiladigan yordamchi ammallar ro`yxati bu –
22. Quyidagi mantiqiy sxema chiqishida qanday qiymat hosil bo`ladi?

23. Ma’lumotlarni xotiraga kiritish va chiqarish dasturi nima deb ataladi
24. A1=”Informatika”, B1=5, A2=СЦЕПИТЬ(ЛЕВСИМВ(A1;B1);"matsiya") bo`lsa A2 ning qiymatini toping.
25. B3:D7 katakchalar blokidagi sonlar ichidan eng kattasining kvadratini A1 katakchada aniqlang. (A1 katakchaga yozilishi lozim bo`lgan buyruqni yozing.)

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	D	B	A	A	B	A	B	C	C	D	C	D	A	D	B	A	D	B

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