Multiple Choice Questions

1.  EBCDIC  stands  for

Correct  Answer :  a.  Extended  Binary  Coded  Decimal  I nter change  Code

Explanation:  EBCDIC  is  an  8-bit  binary  code  for   larger   IBMs  primarily  mainframes  in  which  each  byte  represent  one alphanumeric  character   or   two  decimal  digits.  256  characters  can  be  coded  using  EBCDIC.

2.

 BCD  is

Cor r ect  Answer :  a.  Binar y  Coded  Decimal

Explanation:  BCD  is  a  binar y  coded  notation  in  which  each  of  the  decimal  digits  is  expr essed  as  a  8-bit  binar y  numer al.

For   example  in  binar y  coded  decimal  notation  12  is  0001  0010  as  opposed  to  1100  in  pur e  binar y.

3.

 ASCI I   stands  for

Cor r ect  Answer :  c.  Amer ican  Standar d  Code  for   I nformation  I nter change

Explanation:  ASCI I   is  a  code  which  conver ts  char acter s  –  letter s,  digits,  punctuations  and  contr ol  char acter s  such  as  Alt,

Tab  etc  –  into  numer al  form.  ASCI I   code  is  used  to  r epr esent  data  inter nally  in  micr o-computer s.  ASCI I   codes  ar e  7  bits

and  can  r epr esent  0  to  127  and  extended  ASCI I   ar e  8  bits  that  r epr esents  0  to  255.

4.

 Which  of  the  following  is  fir st  gener ation  of  computer

Cor r ect  Answer :  a.  EDSAC

Explanation:  I BM-1401,  CDC-1604  is  second  gener ation  computer .  I CL-2900  is  a  four th  gener ation  computer .  EDSAC  is

impor tant  in  the  development  of  computer   since  it  was  the  fir st  computer   to  use  John  von.  Neumann’s  Stor ed  Pr ogr am

Concept.  I t  used  3000  vacuum  tubes  and  computer s  with  vacuum  tubes  ar e  of  fir st  gener ation  computer s.

5.  

Chief  component  of  fir st  gener ation  computer   was

Cor r ect  Answer :  b.  Vacuum  Tubes  and  Valves

Explanation:  Tr ansistor s  wer e  used  for   second  gener ation  computer s  and  integr ated  cir cuits  in  thir d  gener ation.  Fir st

gener ation  computer s  used  vacuum  tubes  and  valves  as  their   main  electr onic  component.  Vacuum  Tubes  wer e  invented

by  Lee  DeFor est  in  1908.

6.  
FORTRAN  is
Cor r ect  Answer :  c.  Formula  Tr anslation
Explanation:  FORTRAN  (Formula  Tr anslation)  is  one  of  the  ear lier   High  Level  pr ogr amming  languages  used  to  wr ite
scientific  applications.  I t  was  developed  by  I BM  in  1956.
7.  
EEPROM  stand  for
Cor r ect  Answer :  a.  Electr ically  Er asable  Pr ogr ammable  Read  Only  Memor y
Explanation:  Ther e  ar e  thr ee  types  of  ROM  namely,  PROM,  EPROM  and  EEPROM.  PROM  can’t  be  r epr ogr ammed,
EPROM  can  be  er ased  by  exposing  it  in  high  intensity  ultr aviolet  light  and  EEPROM  can  be  er ased  and  r epr ogr ammed
electr ically.  I t  is  not  needed  to  be  r emoved  fr om  the  computer   to  be  modified.
8.
  Second  Gener ation  computer s  wer e  developed  dur ing
Cor r ect  Answer :  1956  to  1965
Explanation:  Second  gener ation  computer s  used  tr ansistor s  as  their   main  electr onic  component.  Tr ansistor   was  invented
by  Bell  Lab  Scientists  John  Bur deen,  Walter   Br attain  and  William  Shockley  in  1947  and  won  the  Nobel  Pr ize  in  1956  but  it
was  not  used  in  computer s  till  1956.  The  second  gener ation  continued  until  the  implementation  of  I C  chips  invented  by
Jack  Kilby  in  Texas  I nstr uments  in  1958.
9.  
The  computer   size  was  ver y  lar ge  in
Cor r ect  Answer :  a.  Fir st  Gener ation
Explanation:  I t  is  obvious  that  computer s  developed  with  mor e  power ,  r eliability,  speed  and  smaller   sizes  due  to  the
enhancement  of  technology.  Fir st  gener ation  computer s  used  1000s  of  vacuum  tubes  that  r equir ed  lot  of  space  made
them  gigantic  in  size.  Single  tr ansistor   could  r eplace  1000  vacuum  tubes  and  a  single  I C  chip  r eplaced  1000s  of
tr ansistor s  made  computer s  smaller   and  mor e  speedy.