Attempt the following questions

Part-1: Choose the most correct answer.

  • After counting 0, 1, 10, 11, the next binary number is …
  1. a) 12                 b) 100                                                c)101                                    d) 110
  • The hexadecimal equivalent of 5810 is …
  1. a) 72         b) 111010                                         c) 3A                                    d) 3C
  • Which of the following is a type of network?
  1. a) Ring b) Bus                 c) Star                                  d) MAN
  • The 2’s complement of 10002 is …
  1. a) 0111 b) 0101                                             c) 1000                                  d) 0001
  • In ... , IBM introduced its first computer for the home user
  1. a) 1974 b) 1981                                           c) 1985                                  d) 1990
  • ALU is …
  1. a) Arithmetic Logic Unit b) Array Logic Unit
  2. c) Application Logic Unit d) None of above
  • In …, Apple introduced the Macintosh.
  1. a) 1974 b) 1981                              c) 1984                               d) 1990
  • The Intel 4004 chip, developed in …
  1. a) 1971 b) 1981                              c) 1985                               d) 1990
  • Which of the following is not an octal number?
  1. a) 44 b) 29                                   c) 10011                              d) 74
  • Hexadecimal equivalent of (58)10 will be …
  1. a) 72 b) 111010     c) 3A                                      d) 3C
  • Which of the following is a computer code?
  1. a) EPROM b) JAVA                         c) BCD         d) None of the above
  • 8421 codes is also called as …
  1. a) Gray code b) ASCII code                   c) Excess 3-code            d) BCD code
  • Actual execution of instructions in a computer takes place in …
  1. a) ALU b) Control Unit                 c) Storage unit                  d) None of the above
  • Which of the following is used as a primary storage device?
  1. a) Magnetic tape    b) PROM               c) Floppy disk                d) None of the above
  • Which is not a basic function of a computer?
  1. a) Store data b) Accept input
  2. c) Process data d) Copy text
  • Information retrieval is the fastest from …
  1. a) Floppy disk b) Magnetic tape                         c) Hard disk                    d) Flash disk
  • Which of the following does not store data permanently?
  1. a) ROM b) RAM                       c) Floppy Disk                   d) Hard Disk
  • Notebook, laptop, palm, hand-held computers are coming under the category of …
  1. a) Digital computer                     b) Mainframe computer
  2. c) Portable computer d) Hybrid computer
  • Touch Screen is …
  1. a) Input device b) Output device            
  2. c) Both a & b above d) None of these
  • Which of the following is not a storage medium?
  1. a) Hard disk b) Flash drive                             c) scanner                        d) DVD
  • ASCII is a coding system that provides …
  1. a) 256 different characters b) 512 different characters
  2. c) 1024 different characters d) 128 different characters
  • All of the following are examples of storage devices EXCEPT
  1. a) hard disk drives b) printers          c ) floppy disk drives          d) CD drives
  • RAM is an example of
  1. a) Secondary memory b) Primary memory
  2. c) Main memory d) Both (b) and (c)
  • Magnetic disk is an example of …
  1. a) Secondary memory b) Primary memory
  2. c) Main memory d) Both (b) and (c)
  • RAM is also called as …
  1. a) Read / Write Memory b) Long Memory
  2. c) Permanent Memory d) Primary Memory
  • Operating system is …
  1. a) A collection of hardware components b) A collection of software routines
  2. c) A collection of input-output devices d) none of the above
  • Memories which can be read only are called … memories.
  1. a) RAM b) ROM                             c) PROM                                     d) EPROM
  • Which of the following holds the ROM, CPU, RAM and expansion cards?
  1. a) Hard disk b) Cache memory              c) Motherboard                       d) None of the above
  • Which of the following is/ are operating systems?
  1. a) Windows b) Unix c) OS/2                                d) All of the above
  • A computer cannot “boot” if it does not have …
  1. a) Programming language                                                              b) Operating system 
  2. c) Antivirus                                                                                 d) Web browser
  • LAN stands for …
  1. a) Limited Area Network b) Logical Area Network
  2. c) Local Area Network d) Large Area Network
  • Which of the following is a network topology?
  1. a) LAN b) WAN c) MAN                                d) BUS
  • “MAN” stands for
  1. a) Maximum Area Network b) Minimum Area Network
  2. c) Main Area Network d) Metropolitan Area Network
  • WAN stands for
  1. a) Wap Area Network b) Wide Area Network
  2. c) Wide Array Net d) Wireless Area Network
  • ... is set of rules and procedures to control the data transmission over the internet.
  1. a) IP address b) Domain c) Protocol                         d) Gateway
  • Physical structure of computer is called …
  1. a) Software b) Hardware                         c) Human ware                 d) All of these.
  • Data is generally coded in 8-bit units, such a unit is also called …
  1. a) Byte b) Nibble    c) field              d) Word
  • The first microcomputer was developed in …
  1. a) 1946 b) 1971   c) 1981              d) 1990
  • Subtract (1010)2 from (1101)2 using 1’s complement.
  1. a) (1100)2 b) (0011)2                          c) (1001)2                            d)(0101)2
  • The digital system usually operated on … system.
  1. a) binary b) decimal c) octal                                 d) hexadecimal
  • The First Generation of computer appeared during the period ....
  1. a) 1945 to 1954 b) 1964 to 1974 c) 1934 to 1944               d) 1937 to 1949
  • The Second Generation of computers used ....
  1. a) IC-Chip     b) Transistors                c) Vacuum tubes              d) Microprocessor chip
  • The device that converts instructions into the binary form that is understood by the

computer and supply to the computer is known as  ....

  1. a) Input b) Output                             c) Automatic                       d) Memory
  • Laptop PCs are also known as .... Computers
  1. a) Mainframe b) Super                c) Notebook                     d) personal
  • Windows 10 is a/an  ....
  1. a) Graphics System c) Operating System
  2. b) Drawing system d) Processing system
  • The number system that we use in our day-to-day life is called the … System.
  1. a) Octal b) Binary c) Hexadecimal                                d) Decimal
  • The Binary system has base …
  1. a) 8 b) 2 c) 10                                     d) 16
  • 110100112 =   ?16
  1. a) D316 b) A316                 c) B316                                  d) D216
  • 2510 =  ?2
  1. a) 100012 b) 110012 c) 110002                            d) 101012
  • The Binary equivalent of the decimal 8 is …
  1. a) 111 b) 1001 c) 1000                                d) 10001
  • What will be the decimal equivalent of 111011.102?
  1. a) 48.625 b) 59.487                            c) 48.487                            d)59.625
  • What will be the hexadecimal equivalent of 5497710?
  1. a) D6C1              b) DC61                               c) D6C5                               d) None
  • What will binary equivalent of (24.1875)10?
  1. a) 0011       b) 11001.0101                     c) 10110.0011                       d) None
  • The Hexadecimal number system has ….. symbols.
  1. a) 15 b)12 c)16                                      d)10
  • The octal equivalent of (13)10 is …
  1. a) 18 b) 14                c) 15                                     d) 16
  • Conversion of the decimal number (100)10 to octal equivalent gives …
  1. a) 100 b)120  c)144                                      d)154
  • The result after converting binary number 1000112 to decimal will be …
  1. a) 30 b) 43 c) 35                                     d) None

 

Part-2:

  • What is computer? Explain the main capabilities of computers.
  • List only five input devices and four output devices.
  • List different technologies on which different computer generations are based.
  • List any five secondary storage devices/memory.
  • Give four example of personal computers (PCs).
  • What are the basic parts of a computer?
  • Based on their usage, list the major categories of computers.
  • Differentiate between RAM and ROM.
  • Explain briefly what is meant by the following terms:

Computer, Information technology (IT), ALU, ROM, RAM. Cache, Byte. Hardware, BIOS, Software, System programs, Application programs.

  • Define bit, byte, nibble, word.
  • What does each of the following three commands perform?

Shift+Alt+Delete, Ctrl+ESC, Shift+Alt+Spacebar.

  • How many bits are in 16 bytes?
  • What is computer network?
  • List only three main topologies of LANs.
  • List various transmission medias?
  • What is Internet? What the types of information can be accessed on it?
  • What is a hyperlink?
  • What is Internet browser?
  • What is URL? List some major domain types which are encountered in URLs.
  • Explain the URL: http://www.google.com.eg.
  • Draw neat labeled block diagram of computer system and Explain.
  • Differentiate between primary and secondary memory.
  • Explain the different topologies of computer networks.
  • Convert (725.25)8 to its decimal, binary and hexadecimal equivalents.
  • What is radix used in case of decimals, binaries, octal, hexadecimals.
  • Represent the decimal number (9371)10 in the following coding schemes:
  1. BCD code
  2.  
  • ASCII (Note that the ASCII code for ‘0’ is 4810 or 01100002).