Guess Paper 9Th Class General Science BISE Lhr

-

Popular posts from this blog

Need To Know how to Buy A Computer for home

-
W hat is a computer? I guess the easiest way I can explain it is as a little machine that follows very specific instructions over and over. A computer cannot learn and, unless told to do so, won’t respond to anything. Think of it as a very dumb dog that you have to teach to catch a ball every day and every time you want to play. Computers do very complex math. Mind you, it is always related to the basics: add, subtract, multiply and divide. But as anyone who has had algebra and calculus will tell you: if you do enough of these basics, you can get approximations of more sophisticated math that are pretty close to reality. Computers do this math very quickly. Often the secalculations are done in millions per second. Imagine multiplying 10 million pairs of multi-digit numbers per second. I have a hard enough time myself doing a 3-digitmultiplication in less than a minute. Computers can store a vast amount of information and retrieve it at extraordinary speeds. When everything work...
Read more

Auto Cad Tip Applications for Xrefs

-
Image
Applications for Xrefs There are many different uses for external references. I will describe two common applications to illustrate their range. Let’s suppose you are working on a project as an interior designer and a subcontractor to the lead architect. The architect can give you a drawing of a floor plan that is still undergoing changes. You load this file onto your hard disk, in a specially designated folder, and then Xref it into your drawing as a background— a drawing to be used as a reference to draw over. You can now proceed to lay out furniture, partitions, and so on, while the architect is still refining the floor plan. At an agreed-on time, the architect will give you a revised version of the floor plan. You will overwrite the one that you have on your computer with the latest version. You can then reload the Xref into your furniture layout drawing, and the newer version of the floor plan will now be the background. In this example, the lead architect might al...
Read more

MAIN DISTRIBUTION FRAME (MDF) CABINETS AND DP

-
MDF,CABINETS AND DP MAIN DISTRIBUTION FRAME (M.D.F). Frame in the exchange used for making cross connections between the incoming cables and exchange equipment. On the line side of the frame the cables terminate on protector strips. It is a connecting/testing point where incoming cable (from switch room) out-going cable to cabinet are terminated. It is of two types (i) Wall Type. (ii) Floor Type. Both sides cables are terminated systematically and join them with a wire i.e. called jumper wire. By this we can change or shift a number easily. DEFINITION OF CABINET: It is a small testing point where primary and secondary pairs are terminated. CABINET CAPACITY: Total number of primary and secondary pairs those terminated in a cabinet is called capacity of cabinet. CONSTRUCTION OF CABINET: It is an almirah made of iron and fiber. It is fixed on the stand made of bricks and cement. TYPES OF CABINETS: 1 50/100 poles mount cabinet 2 300/400 ...
Read more