Note:- Attempt Six questions in all including questions No 1 which is compulsory.
(i) ———- generation is called the generation of artificial intelligence.
(ii) LCD stands for——–.
(iii) ———– is the base if octal number system.
(iv) A 3-variable karnaugh map has ———— cells.
(i) An operating system is a set of programs.
(ii) A LASER printer is slow in operation.
(iii) The first generation of computers used transistors.
(iv) Data stored in ROM can be changed.
(v) A date is an internal command.
(d) Write the full names of the following words (05)
(1) ASCII (ii) BPI (iii) COBOL (iv) LAN (v) 4GL
2.(a) Define ports and give Ils types (05)
(b) Differentiate between an Analog computer and a Dig1tal computer (03)
(c) What is the purpose of main memory? (02)
3.(a) Define a Bus What are the purpose of the Address bus. Control bus and Data bus? (05)
(b) What is a Number System? Explain the different types of number system (05)
4.(a) Draw the following truth table and prove it A+ A.B A+ B
(b) Define CPU. What are the main units of a CPU? Explain each unit with the help of a block diagram. (03+05)
(c) What is Software? (02)
5.(a) Convert the following binary numbers to their decimal equivalents: (i) 1100110 (ii) 101010 (02)
(b) Convert the following decimal numbers into their binary equi11alents: (i) 628 (ii) 515 (02)
(c) Solve the following binary numbers· (06)
(i) 101111 + 110011 (ii) 111001 -10111
(iii) 1110X10 (IV) 1000+11
(v) 11110101 ( l’s complement)
(v1) 10101100 (2’s complement)
6.(a) What is a computer virus? How is a virus removed from disk? (05)
(b) Describe the properties or Windows Operating System (05)
7.(a) Dehne an Input Devices (02)
(b) Define a keyboard and state its u1v1s1ons (05)
(c) D1fferent1ate between Mouse and Trackball (03)
8.(a) What is the language trarislaturs7 Explain each of them (5)
(b) Express the Boolean express K-Map ABC+ ABC t ABC I- ABC (2)
(c) D1ffetenhale between Data and Information? (03)
9. Write short notes on any Five of the iollow1ng (10)
(i) Plotter (ii) RAM (iii) Mainframe computer
(iv) Taskbar (v) Folder (vi) Internet (vii) Monitor