8-sinf o`quvchilari uchun informatika fanidan ikkinchi bosqich

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

20. B3:D7 katakchalar blokidagi sonlar ichidan eng kattasining kvadratini A1 katakchada aniqlang. (A1 katakchaga yozilishi lozim bo`lgan buyruqni yozing.)
21. ABS(-5)*КОРЕНЬ(64)-ОСТАТ(55;8) ning natijasini aniqlang.
22. A1=”Informatika”, B1=5, A2=СЦЕПИТЬ(ЛЕВСИМВ(A1;B1);"matsiya") bo`lsa A2 ning qiymatini toping.
23. Sichqonchaning o`ng tugmasi yordamida ochiladigan yordamchi ammallar ro`yxati bu –
24. Olingan nusxa joylashadigan kompyuter xotirasining maxsus qismi bu –
25. Ma’lumotlarni xotiraga kiritish va chiqarish dasturi nima deb ataladi

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

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