CS101 Midterm MCQs by Amaan Khan

CS 101 important M.C.Q

Module 1 to 50

1. The most frequent or widely used search engine used on internet is _______________ GOOGLE (90.31%)
2. _____ a set of instructions and its documentations that tells a computer what to do or how to perform a task.

Software

3. The most common resource shared today is connection to the ___________ Internet
4. ________ is the set of words given to the search engine for searching. Query
5. One of the earlier computing devices was___________ Abacus
6. Who applied the concept of representing information as holes in paper cards? Herman Hollerith
7. The electromechanical machine of George Stibitz was completed in___________ 1940
8. Mark I was completed in ________ 1944
9. ENIAC stands for ________ electronic numerical integrator and calculator
10. The number of vacuum tubes used in the ENIAC __________ 20,000
11. IBM launched their PC in ______________

1981

12. How many bits are present in one byte? 8 bits
13. _________ who was a pioneer in the field of mathematics called logic? George Boole
14. _________ is another Boolean operation which produces the output of 1 when both inputs are different. XOR
15. Hexadecimal notation uses a single symbol to represent a pattern of _________ bits. Four
16. Manageable unit Cells contains how many bits? 8 bits
17. Identify individual cells in a Computer’s main memory, each cell is assigned a unique “name,” called its _________ Address
18. RAM stands for ________________ Random access memory
19. The sum of seek time and rotation delay is called _________ Access Time
20. CD stands for ________________ Compact Disk
21. CD is ________ centimeter in diameter. 12
22. CDs capacity is ____________ 600 to 700 MB
23. Which one of the following can provide 32 GBs? SDHC
24. _______________ uses 24 to 32 bits having large possibilities for expansion? UTF-8
25. Binary notation is a way of representing numeric values using only the digits _____________ 0 and 1
26. Collection of dots _______ short for Picture Element. Pixel
27. Which of the following are the primary colors for the image? Red, Green and Blue
28. How many bytes are used to represent one pixel? Three
29. MIDI stands for ______________ Musical Instrument Digital Interface
30. __________ is another method of representing integer values. Excess Notation
31. A popular way of doing this is based on scientific notation and is called __________ floating-point notation
32. The data being compressed consist of long sequences of the same value, the compression technique called

____________ run-length encoding

33. Which one of the following is lossless data compression technique? frequency-dependent encoding
34. LZW stands for ____________ Lempel-Ziv-Welsh
35. GIF is a dictionary encoding system that was developed by_________________ CompuServe
36. JPEG stands for ______________ Joint Photographic Experts Group
37. The most commonly used standards for encoding and compressing ________ was developed by the Motion Picture Experts Group (MPEG) under the leadership of ISO. audio and video
38. __________ is that a sound at one frequency tends to mask softer sounds at nearby frequencies. frequency

masking

39. Using MPEG techniques, video presentations can be successfully relayed over communication paths that provide transfer rates of_________________ 40 Mbps
40. A CPU consists of how many parts? Three
41. _________ that are used for temporary storage of information within the CPU. Registers
42. A machine’s CPU and main memory are connected by a collection of wires called___________ bus
43. Early computers were not known for their ______________ Flexibility
44. CPUs are designed to recognize instructions encoded as____________________ bit patterns
45. The collection of instructions along with the encoding system is called _____________ machine language
46. RISC stands for _____________ Reduced instruction set computer
47. ________ consists of instructions that request the movement of data from one location to another. Data

transfer group

48. A request to fill a general-purpose register with the contents of a memory cell is commonly referred to as a ___________ LOAD
49. The control group consists of those instructions that direct the _________ of the program rather than the manipulation of data. Execution
50. __________ contains the address of next instruction to be executed. Program Counter
51. Bitwise operations that combine______ strings of bits to produce a single output string by applying the basic operation to individual columns. Two
52. Which one is use of the AND operation is an example of the process called ________ Masking
53. AND operations are useful when manipulating other types of________ bit map
54. The technique is to discard the bit that falls off the edge and always fill the hole with a 0 ____ logical shift
55. Shifts that leave the sign bit unchanged are sometimes called ___________ arithmetic shifts
56. Communication between a computer and other devices is normally handled through an intermediary apparatus known as _______________ controller
57. Controller connects via cables to peripheral devices within the computer case or perhaps to a connector, called a

port

58. USB stands for ___________ universal serial bus
59. Which one of the following is a single controller is able to handle a variety of devices? Fire Wire
60. The ability of a controller to access main memory is known as_________ direct memory access (DMA)
61. Several signals are transferred at the same time, each on a separate line ___________ Parallel Communication
62. 8kbps is equal to ___________ 1KB per second
63. Rate at which bits are transferred from one computing component to another measured in_________ bits per

second (bps)

65. Electric pulses travel through a wire no faster than the ___________ Speed of light
66. _________ which is the technique of allowing the steps in the machine cycle to overlap. Pipelining
67. The execution of each program, called a ____________ Job
68. ___________ abbreviated for FIFO. first-in, first-out