PNG CompuTech Training Institution

CHAPTER 1: Getting Around Knowing Computers The term computer has been borrowed from the word “compute” which means calculate. It is capable of receiving information in a particular form and of performing a sequence of operations in accordance with a valuable set of procedural instructions to produce a result in a form of information or signals. It is used to perform arithmetic calculations in fast speed. Most of us used computers every day. We can use them for work, when we want to edit a word document, attend a video conference, or send an important email. A computer is a tool that accepts some input and then can easily manipulate and process the different kind of data it receives. It performs complete calculation and produces some out puts. The output can be stored for latter retrieval and use. Specifically, a computer is an electronic device or machine that follow certain specified rules and completes a standard set of function such as creating information, taking data as inp...

  Learn Linux Operating System   Linux is a family of free and open-source software operating systems based on the Linux kernel, an operating system kernel first released on September 17, by Linus Torvalds. And also, Linux is a command line interface, used by most large, powerful computers and it is very popular and very easy to find information and get help. It is very staple - computers running Linux almost never crash. It’s very efficient which can smoothly manage extremely huge amounts of data. Most new bioinformatics software is created for Linux - it’s easy for the programmers.   Linux Operating System (OS) is a resource manager. It takes the form of a set of software routines that allow users and application programs to access system resources (e.g. the CPU, memory, disks, modems, printers’ network cards etc.) in safe, efficient and abstract way. Linux is a layered operating system. Its innermost layer is the hardware that provides the services f...