9th Computer Chapter # 2 Online Test

1) How much data could the first hard drive store?

2) The weight of the first hard drive created by IBM In 1956 was over:

3) What company built the first hard drive in 1956?

4) IBM created first hard drive in?

5) Which storage device uses flash memory for faster access times and better performance?

6) Which storage method stores files on remote servers accessed via the internet?

7) Which device uses spinning disks to read and write data?

8) Which Unicode encoding uses fixed 4 bytes per character?

9) What is the maximum number of bytes a single UTF-16 character can take up?

10) What is the minimum number of bytes a single UTF-16 character can take up?

11) What is the minimum number of bytes a single UTF-8 character can take up?

12) What is the maximum number of bytes a single UTF-8 character can take up?

13) Which Unicode encoding is backward compatible with ASCII?

14) Which encoding scheme can represent characters from almost all languages?

15) Which of the following is a valid encoding format?

16) Extended ASCII can represent how many characters?

17) How many bits are used in extended ASCII?

18) Which of the following letters has the ASCII code 97?

19) How many characters can standard ASCII represent?

20) How many bits are used in standard ASCII encoding?

21) Which of the following is a key advantage of Unicode over ASCII?

22) How many bits are used in the standard ASCII encoding?

23) What does ASCII stands for?

24) Which type of integer uses all bits to store only non-negative values?

25) What is the first step in two's complement conversion?

26) What method is used to store negative values in binary?

27) What is the minimum value of a 2-byte signed Integer?

28) Which formula gives the minimum value of a signed integer?

29) What is the range of values for a 1-byte signed integer?

30) If the sign bit is 1 in a signed integer, what does it represent?

31) Which bit in a signed integer indicates the sign?

32) Which of the following is an example of a whole number?

33) How many values can be represented using a 2-byte unsigned integer?

34) Which formula is used to calculate the maximum value of an unsigned integer?

35) What is the maximum value of a 1-byte unsigned integer?

36) A 1-byte integer has ....... bits to store values:

37) What is the primary difference between signed and unsigned integers?

38) How many bytes are used to store a typical integer?

39) A hexadecimal digit is represented by........ binary digits:

40) 2º is equal to:

41) 3 ×101+7 ×100 is equal to: (1)

42) The conversion from decimal to binary requires repeated division by:

43) B in hexadecimal system is equivalent to decimal system.:

44) How many digits are in the hexadecimal number system?

45) Base of hexadecimal number system is:

46) Base of binary number system is:

47) Digital circuits have ...... states:

48) Which early computer system used the octal number system?

49) Each octal digit can be represented by how many binary digits?

50) What is the octal value of the binary number 011?

51) Which of the following number is a valid binary number?

52) The base of decimal number system is:

53) How many unique digits are there in the decimal number system?

54) What is the place value of the third digit from the right in a decimal number?

55) How many unique digits are there in the binary number system?

56) The number system we use in our daily life is number system:

57) Each digit position in decimal number system represents the power of:

58) The digits of the binary system are called:

59) Computer uses .......... number system to store data and perform calculations.

60) What is the base of the octal number system?

61) Which digits are used in the octal system?