Gyanm Computer Awareness by Gyanm College of Competitions is a definitive guide for all competitive exams, including Punjab Police, Patwari, Clerk, SSC, Banking, and Railway. This book covers 19 chapters spanning computer fundamentals, input-output devices, number systems, computer memory, operating systems, DBMS, networking, viruses and security, MS Office (Word, Excel, and PowerPoint), internet technology, cybersecurity with the IT Act, email protocols, and current IT trends. Exclusive sections include inventors of computers, a detailed glossary, Punjab previous years' MCQs (2018-2022), and 5 model test papers. Designed for aspirants who need concept clarity and extensive practice, this publication ensures thorough preparation through exam-oriented content, solved previous years' questions, and simulated test papers.
Binary number system (Base-2), using only digits 0 and 1. All data representation and processing inside CPU occurs in binary format.
RAM is volatile, temporary, read-write memory. ROM is non-volatile, permanent, read-only memory storing firmware like BIOS.
Python and Java are popular high-level languages. They use English-like syntax and require compilation or interpretation before execution.
An OS manages hardware and software resources. Example: Windows 11. It handles memory, processes, files, and input-output devices.
Simple Mail Transfer Protocol. It is used for sending outgoing emails from a client to a server or between mail servers.
Charles Babbage. He conceptualized the Analytical Engine in 1837, which had input, memory, processor, and output – like modern computers.
Keyboard and Mouse are primary input devices. Others include scanner, microphone, webcam, and barcode reader for data entry.
It provides legal recognition to electronic transactions, digital signatures, and cyber crimes like hacking, data theft, and online fraud.
On-demand delivery of computing services – servers, storage, databases, software – over the internet ("the cloud") on a pay-as-you-go basis.
Star topology. Each node has a dedicated point-to-point link to a central hub or switch. Failure of one node doesn't affect others.
Binary number system (Base-2), using only digits 0 and 1. All data representation and processing inside CPU occurs in binary format.
RAM is volatile, temporary, read-write memory. ROM is non-volatile, permanent, read-only memory storing firmware like BIOS.
Python and Java are popular high-level languages. They use English-like syntax and require compilation or interpretation before execution.
An OS manages hardware and software resources. Example: Windows 11. It handles memory, processes, files, and input-output devices.
Simple Mail Transfer Protocol. It is used for sending outgoing emails from a client to a server or between mail servers.
Charles Babbage. He conceptualized the Analytical Engine in 1837, which had input, memory, processor, and output – like modern computers.
Keyboard and Mouse are primary input devices. Others include scanner, microphone, webcam, and barcode reader for data entry.
It provides legal recognition to electronic transactions, digital signatures, and cyber crimes like hacking, data theft, and online fraud.
On-demand delivery of computing services – servers, storage, databases, software – over the internet ("the cloud") on a pay-as-you-go basis.
Star topology. Each node has a dedicated point-to-point link to a central hub or switch. Failure of one node doesn't affect others.