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What is Random access memory (RAM)
This is a volatile memory (i.e. contents are lost when computer is switched off). A user can write or delete data and read the contents. Before a program can be ran it should first be loaded into RAM that allows CPU to access the program. Battery-backed RAMs overcome data loss on switching power off though are outside the scope of these booklets.
(NOTE: For completeness, it's worth mentioning that two types of RAM exist termed as SRAM (static RAM) and DRAM (dynamic RAM) - SRAM doesn't need to be constantly refreshed to retain its memory unlike DRAM. Also consider that computers use cache which is a part of memory made from SRAM. Memory caching works as programs generally access the same data or instructions over and over again. By retaining as much information as possible in SRAM, computer operates more quickly (cache is generally termed level 1, 2 or 3 (termed L1, L2 or L3)).
BIOS or Basic Input/Output System is the first program accessed by the processor during start up to make sure that all the other basic programs, hard drives, ports, peripherals and
In a subscriber loop that contains a series resistance of 300 ohms to protect the batteries in the exchange, a normalized telephone draws 10 mA and its standard input d.c. resistan
Purpose: Payroll processing and storage for the client database (accessed from the Reception-PCover the network),word processing (reports etc.) and spreadsheets. Software: . • W
In step by step switching line finders are connected to the (A) Calling subscriber. (B) Switching network. (C) Called subscriber. (
As per the JMS specification, when you are in a transaction, the acknowledge Mode is ignored. If acknowledge() is known as within a transaction, it is ignored.
Write a CGI program that displays a count of how many times a browser on each computer has contacted the server. echo Content -type: text /html echo N=$QUERY_STRING Ec
Define the Operating Characteristics for master-slave S-R flip-flop? 1. Propagation Delay Time - is the interval of time required subsequent to an input signal has been applied
Q. Define about Anchor Tag? Anchor tag is used to create links between various objects such as HTML pages, web sites, files etc. It is introduced by characters and termi
What is response ratio? HRRN that is Highest Response Ratio Next scheduling is a non-preemptive discipline, as same to Shortest Job First (SJF) wherein the priority of all jobs
Is the TCP checksum necessary? Yes, TCP Checksum is essential. TCP layer is liable for error detection, transmission of packets if needed, error control, reassembly of packe
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