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Q. Describe Memory and Memory unit?
Input devices can fetch instructions or data only sequentially though a program may or may not be executed sequentially because looping, jump, decision-making instructions are frequently encountered in programming. As well more than one data element may be needed at a time. Hence a temporary storage area is required in a computer to store temporarily the instructions as well as the data. This element is termed as memory.
Memory unit stores all information in a group of memory cells like a group of 8 binary digits (which is a byte) or 16 bits or 32 bits and so on. These groups of memory cells or bits are known as memory locations. Every memory location has a unique address and can be addressed individually. Contents of desired memory locations are supplied to CPU by referring to address of memory location. Amount of information which can be held in main memory is termed as memory capacity. Capacity of main memory is measured in Mega Bytes (MB) or Giga Bytes (GB). One-kilo byte denotes 210 bytes that are 1024 bytes (or just about 1000 bytes). A Mega byte denotes 220 bytes that is near about a little over one million bytes and a giga byte is 230 bytes.
Why is fragmentation needed on Internet not on a typical WAN? TCP/IP protocol utilizes the name IP datagram to demote to an Internet packet. The amount of data carried into a d
Explain characteristics of Latch and Flip-Flop. Latches are level-sensitive and transparent While the clock is high it passes input value to Output While the clock is l
What are value types and reference types? Value type - bool, byte, chat, decimal, double, enum, float, int, long, sbyte, short, strut, uint, ulong, ushort. Value types are sto
It speeds execution of distributed applications. It runs on dissimilar platforms. It time independent. No loss for msg delivery i.e. guarantee delivery.
Internet: The Internet, an umbrella term cover countless network and services that comprise a super-network, is a global network of computer networks that was started in the 1
DLQ - Dead Letter Queue If an application tries to put a message to one more application and if it is not delivered then it goes to the DLQ. So DLQ is not anything but all und
Define Mapping and List mapping procedure? The transformation of data from main memory to cache memory is known as an Mapping. Associative mapping Direct mapping
Engineering Applications A few of the engineering applications are: Airflow circulation over aircraft machinery, Simulations of simulated ecosystems. Airflow c
Q. Explain about disk caching scheme? The disk caching scheme can be used to speed up performance of disk drive system. A set (cache) of buffers is assigned to hold some disk b
What is a parallel port? A parallel port transfers data in the form a number of bits, typically 8 to 16, concurrently to or from the device.
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