Write a note on history of C and C++:
C evolved from two previous languages, BCPL and B. BCPL was developed in 1967 by Martin Richards as a language for writing operating-systems software and compilers. Ken Thompson modeled many features in his B language after their counterparts in BCPL, and in 1970 he used B to create early versions of the UNIX operating system at Bell Laboratories. Both BCPL and B were “typeless” languages—every data item occupied one “word” in memory, and the burden of typing variables fell on the shoulders of the programmer.
The C language was evolved from B by Dennis Ritchie at Bell Laboratories and was originally implemented on a DEC PDP-11 computer in 1972. C uses many of the important concepts of BCPL and B while adding data typing and other powerful features. C initially became widely known as the development language of the UNIX operating system. Today, virtually all new major operating systems are written in C and/or C++. C is available for most computers. C is mostly hardware independent. With careful design, it’s possible to write C programs that are portable to most computers.
Results
| Sr# | Name | Roll No | Marks |
|---|---|---|---|
| 1 | 16-cs-02 Muhammad Saleem (Repeater) | 16-cs-02 | NA |
| 2 | 16-cs-10 Noman Akram (Repeater) | 16-cs-10 | NA |
| 3 | 16-cs-12 Ameer Hassan (Repeater) | 16-cs-12 | NA |
| 4 | 16-cs-20 S. Iqra Batool (Repeater) | 16-cs-20 | NA |
| 5 | 16-cs-26 Rida Umber (Repeater) | 16-cs-26 | NA |
| 6 | 17-cs-01 Hafsa Javed | 17-cs-01 | NA |
| 7 | 17-cs-02 Amina Yousaf | 17-cs-02 | NA |
| 8 | 17-cs-03 Mubashar Munir Gondal | 17-cs-03 | NA |
| 9 | 17-cs-04 Muhammad Ehsan | 17-cs-04 | NA |
| 10 | 17-cs-05 Syed Nade Ali Zaidi | 17-cs-05 | NA |
| 11 | 17-cs-06 Shiza Qandeel | 17-cs-06 | NA |
| 12 | 17-cs-07 Umair Ahmed | 17-cs-07 | NA |
| 13 | 17-cs-08 Aqib Ali | 17-cs-08 | NA |
| 14 | 17-cs-09 Rabia Kanwal | 17-cs-09 | NA |
| 15 | 17-cs-10 Izaz ur Rehman | 17-cs-10 | NA |
| 16 | 17-cs-11 Rida Sarwar | 17-cs-11 | NA |
| 17 | 17-cs-12 Muhammad Naqash Iqbal | 17-cs-12 | NA |
| 18 | 17-cs-13 Aqsa Mubeen | 17-cs-13 | NA |
| 19 | 17-cs-14 Ali Irtiza | 17-cs-14 | NA |
| 20 | 17-cs-15 Ali Hassan | 17-cs-15 | NA |
| 21 | 17-cs-16 Kashif Khaliq | 17-cs-16 | NA |
| 22 | 17-cs-17 Muhammad Shehbaz | 17-cs-17 | NA |
| 23 | 17-cs-18 Syed Arsalan Asif | 17-cs-18 | NA |
| 24 | 17-cs-19 Muhammad Zain ul Abedin | 17-cs-19 | NA |
| 25 | 17-cs-20 Mubeen Arshad | 17-cs-20 | NA |
| 26 | 17-cs-21 Imama Safdar | 17-cs-21 | NA |
| 27 | 17-cs-22 Abdullah | 17-cs-22 | NA |
| 28 | 17-cs-23 Inzamam ul Haq | 17-cs-23 | NA |
| 29 | 17-cs-24 Ali Husnain Raza | 17-cs-24 | NA |
| 30 | 17-cs-25 Roomisa Pervaiz | 17-cs-25 | NA |
| 31 | 17-cs-26 Taneem Tahira | 17-cs-26 | NA |
| 32 | 17-cs-27 Ali Usman | 17-cs-27 | NA |
| 33 | 17-cs-28 Muhammad Yousaf | 17-cs-28 | NA |
| 34 | 17-cs-29 Basit Abbas | 17-cs-29 | NA |
| 35 | 17-cs-30 Muhammad Qasim | 17-cs-30 | NA |
| 36 | 17-cs-31 Rida Mukhtar | 17-cs-31 | NA |
| 37 | 17-cs-32 Sanawer Hussain | 17-cs-32 | NA |
| 38 | 17-cs-33 Arslan Munir | 17-cs-33 | NA |
| 39 | 17-cs-34 Muhammad Zeeshan | 17-cs-34 | NA |
| 40 | 17-cs-35 Muhammad Zain Ul Hassan | 17-cs-35 | NA |
| 41 | 17-cs-36 Sami Ullah | 17-cs-36 | NA |
| 42 | 17-cs-37 Tanzeela Bibi | 17-cs-37 | NA |
| 43 | 17-cs-38 Muhammad Asad Waqar | 17-cs-38 | NA |
| 44 | 17-cs-39 Seemab Fatima | 17-cs-39 | NA |
| 45 | 17-cs-40 Haroon Khalid | 17-cs-40 | NA |
| 46 | 17-cs-41 Hassan Sardar | 17-cs-41 | NA |
| 47 | 17-cs-42 Fasih Ur Rehman | 17-cs-42 | NA |
| 48 | 17-cs-43 Hamna Aslam | 17-cs-43 | NA |
| 49 | 17-cs-44 Ali Saqlain | 17-cs-44 | NA |
| 50 | 17-cs-45 Inam Khalil | 17-cs-45 | NA |
| 51 | 17-cs-46 Iqra Nawaz | 17-cs-46 | NA |
| 52 | 17-cs-47 Awais Ijaz | 17-cs-47 | NA |
| 53 | 17-cs-48 Bilal Arshad | 17-cs-48 | NA |
| 54 | 17-cs-49 Farina Shehnaz | 17-cs-49 | NA |
| 55 | 17-cs-50 Waqar Hassan | 17-cs-50 | NA |
| 56 | 17-cs-51 Masum Muhammad Ali | 17-cs-51 | NA |
| 57 | 17-cs-52 Jawad Ali | 17-cs-52 | NA |
| 58 | 17-cs-53 Abdul Rehman Ali Siddique | 17-cs-53 | NA |
| 59 | 17-cs-54 Qasim Ali | 17-cs-54 | NA |
| 60 | 17-cs-55 Muhammad Bilal | 17-cs-55 | NA |
| 61 | 17-cs-56 Muhammad Nabeel Asif | 17-cs-56 | NA |
| 62 | 17-cs-57 Qumar Shahzad | 17-cs-57 | NA |
| 63 | 17-cs-58 Shehzad Ahmed | 17-cs-58 | NA |
| 64 | 17-cs-59 Shumraz Farooq | 17-cs-59 | NA |
| 65 | 17-cs-60 Muhammad Kamran Akhtar | 17-cs-60 | NA |
| 66 | 17-cs-61 Muhammad Muzammal | 17-cs-61 | NA |
| 67 | 17-cs-62 Syed Tahir Abbas | 17-cs-62 | NA |
| 68 | 17-cs-63 Sohaib Ali | 17-cs-63 | NA |
| 69 | 17-cs-64 Shahzaib Afzal | 17-cs-64 | NA |
| 70 | 17-cs-65 Tooba Rabab | 17-cs-65 | NA |