Rays Systems

NOT: you can get more articles about computer from. http://www.web-articles.info Types of Computer:- Computer can process different types of data, so following are the basic types of computers with respect to the data, which they can process. · Digital Computer · Analog Computer · Hybrid Computer 1. Digital Computer:- Digital Computer works with digits, so this computer represent the data in term of discrete numbers and process data using the standard arithmetic operations. It is also used as counting devices, actually in these computers all the expressions and instructions are first converted into binary system and then these are manipulated at very high speed. The basic operation in digital computers is addition and other operation like subtraction, multiplication and division are implemented through the addition. PC Performance is most important for every user more article get from http://www.web-articles.info 2. Analog Computers:- An analog computer measures continuos type of data...

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Board of Intermediate & Secondary Education Lahore Questions Book 10 Chapter # 1. Problem Solving 1) What is meant by problem solving? 2) Name the steps to solve any kind of problem 3) Define problem identification 4) What is meant by specify requirements? 5) What is analyzing the problem? 6) What is top down design? 7) What is an algorithm? 8) What is meant by desk checking? 9) What is a program? 10) Define flow chart? 11) What is coding? 12) What is syntax? 13) What is meant by test and debugging? 14) What is syntax error? 15) What is runtime error? 16) What is logical error? 17) What is meant by implement the program? 18) Write the guidelines for drawing a flow chart? 19) What are the advantages of flowchart? 20) What are the limitations or disadvantages of flow chart? Chapter # 2. Data Types, Assignments and Input/Output Statements 1) Who developed BASIC, when and where? 2) Why was BASIC developed? 3) How many modes of operations of GW-BASIC? 4) What is direct mode of operation...

www.yahoo.com Yahoo MEssenger Chat Commands Tips and Tricks /join [room] go to what ever room you wish /invite [buddys name] sends invitation request /tell [user] [message] private messages a friend /follow [user] follows a friend/stopfollow [user] stop following someone /stopfollow [yourname] to stop them from following you /goto [user] enters the room the user is in /away [off] turn your private messages back on /think [message] (type this to think what you want /ignore [list] list everyone who you are ignoring /ignore add [user] add someone to your ignoring list /ignore [add all] ignores everything going on

OPERATION OF STENO PHONE 1 EXTENSION WANTS TO TALK TO MAIN STATION Lift the handset at ext. and depress the call push button, buzzer at main station will ring after lifting the handset at main station and by throughing the key at main station to right side, ext can talk with main station. 2 MAIN STATION WANT TO TALK TO EXTENSION Main station through the key towards the right side and depress the pushbutton, the buzzer will ring at ext. Main station can talk with ext when handset is lifted at the ext. 3 INCOMING CALL DURING CONVERSATION BETWEEN MAIN AND EXTENSION The exchange call can only be received at the main station by throughing the key to the middle position, main can talk with exchange. INCOMING CALL 4 MAIN STAION WANTS TO HOLD THE INCOMIN CALL AND CONSULT THE EXTENSION Main station press the pushbutton and through the key again towards the right. 5 MAIN STATION WANTS TO CALL AGAIN WITH EXCHANGE Through the key again back in middle position. 6 EXTENSION WANTS TO GET THE EXCHANG...

CIRCUIT DESCRIPTION INCOMING CALL CIRCUIT: 25 C/S ~(AC) from parent exchange on telephone set a wire terminal No.14, terminal No.25, C2 1μF, Bell 1700,ohm, 3-10 or 5-12 loop, terminal No.6 b-wire and back to parent exchange. SPEECH CIRCUIT: Speech current from parent exchange transmitter circuit, on telephone set a wire terminal No.14, terminal No.25, nsi/nsr terminal No.26, UI/UII operate terminal No.24, terminal No 2.M transmitter, terminal No.1 w1 4-1k, induction coil 160,ohm 2-1 Tag induced in J winding 38,ohm5-6, receiver point 8-15 Gr. and back to induction coil winding 29 ohms, 1-4 Tag, terminal No.23, 3-10 loop terminal No.6 b-wire and back to parent exchange transmitter. OUTGOING CALL CIRCUIT: Pulses from nsi contact, telephone terminal No.26, UI /UII operate terminal No.24, nsa contact operate, terminal No.23, 3-10 loop, terminal no. 6 b-wire, and go to parent exchange.