Unit 1: Computer Fundamentals and Data Representation - Practice Quiz

1 Which characteristic of a computer refers to its ability to perform tasks without getting tired or bored?

2 The main electronic component used in first-generation computers was the:

3 Which technology characterizes second-generation computers?

4 The microprocessor was introduced in which generation of computers?

5 The property that allows a computer to always give correct results (assuming correct input) is called:

6 Which unit of the computer is responsible for performing arithmetic and logical operations?

7 Which part of the computer directs and coordinates the operations of all other units?

8 The Control Unit and the ALU together form the:

9 Which of the following is an input device?

10 Which of the following is an output device?

11 The use of computers to manage patient records and diagnostic imaging is an application of IT in which sector?

12 ATM services and online fund transfers are examples of IT applications in the:

13 E-learning and online examinations are applications of IT in which field?

14 Buying and selling of goods through websites is commonly known as:

15 What is the base (radix) of the binary number system?

16 How many distinct digits are used in the hexadecimal number system?

17 The decimal equivalent of the binary number is:

18 What is the base of the octal number system?

19 The binary equivalent of the decimal number is:

20 In hexadecimal, the letter represents which decimal value?

21 Convert the decimal number into its binary equivalent.

22 What is the hexadecimal equivalent of the binary number ?

23 Convert the octal number to decimal.

24 The hexadecimal number is equal to which decimal value?

25 Convert the binary number into octal.

26 What is the result of the binary addition ?

27 Convert the decimal fraction into binary.

28 How many distinct values can be represented using bits?

29 Convert the hexadecimal number to decimal.

30 The octal number is equivalent to which binary number?

31 In the block diagram of a computer, which unit is responsible for performing arithmetic and logical operations?

32 Which component of the CPU coordinates and directs the operations of all other units by generating control signals?

33 A student presses a key on the keyboard and the character appears on the monitor. Which sequence of units is involved in order?

34 Which type of memory temporarily holds data and instructions currently being processed and loses its contents when power is off?

35 Which characteristic of a computer refers to its ability to perform the same task repeatedly without getting tired or bored?

36 The use of Integrated Circuits (ICs) as the main electronic component marks which generation of computers?

37 Which technology is associated with the fourth generation of computers?

38 A computer produces wrong output after being given incorrect input data. This situation is best described by which principle?

39 The use of software to monitor patient vital signs, store medical records, and assist in diagnosis is an application of IT primarily in which sector?

40 An ATM allowing customers to withdraw cash and check balances at any time represents the application of IT in which sector?

41 Convert the binary number into its hexadecimal equivalent.

42 The octal number is equivalent to which binary number?

43 Perform the binary addition and select the correct sum.

44 Convert the decimal fraction into binary.

45 Convert the hexadecimal number directly into its octal equivalent.

46 What is the decimal value of the binary number ?

47 Convert the octal number into hexadecimal.

48 Convert the decimal number into hexadecimal.

49 Perform the hexadecimal addition .

50 Using 8-bit 2's complement arithmetic, compute and give the binary result.

51 What is the BCD (8-4-2-1) representation of the decimal number ?

52 Convert the hexadecimal number into decimal.

53 Which statement correctly describes converting the decimal fraction to binary?

54 An unsigned register uses bits. If it must store the decimal value , what is the minimum number of bits required?

55 Which technology is the defining hardware characteristic that distinguishes fourth-generation computers from third-generation computers?

56 Which of the following statements about the characteristics of a computer is FALSE?

57 In the block diagram of a computer, which component coordinates and directs the operations of all other units but performs no arithmetic or logical operations itself?

58 According to the standard block diagram, which pairing of unit and role is INCORRECT?

59 In the banking sector, which technology is specifically used to read the pre-printed magnetic characters at the bottom of a cheque for fast, error-free processing?

60 A hospital deploys a system that lets specialists diagnose and consult patients located in remote rural areas over a network. This application of IT in the healthcare sector is best termed: