RSMSSB Computor flashcards
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31 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Bit and Byte
- A bit is a single binary digit, 0 or 1. A byte is a group of 8 bits and typically represents one character in ASCII encoding.
- RAM versus ROM
- RAM is volatile read/write working memory that loses data on power-off. ROM is non-volatile, holds firmware permanently, and is normally read-only.
- Hexadecimal base
- A base-16 number system using digits 0-9 and letters A-F, where A=10 and F=15. It is widely used as shorthand for binary values.
- Universal logic gates
- NAND and NOR gates are called universal because either one alone can be wired to build every other logic gate, including AND, OR and NOT.
- Control Unit role
- The CPU component that fetches instructions, decodes them, and directs the ALU, registers and memory to execute each step of the instruction cycle.
- Cache memory
- Small, very fast memory between the CPU and RAM that stores frequently used data and instructions, reducing average access time during processing.
- Impact versus non-impact printers
- Impact printers strike a ribbon against paper (dot matrix, daisy wheel). Non-impact printers form images without striking (laser, inkjet, thermal).
- SSD storage
- Solid State Drive using flash memory with no moving parts. It offers faster access, lower power use and greater shock resistance than a hard disk.
- OSI seven layers
- Physical, Data Link, Network, Transport, Session, Presentation and Application, a reference model describing how data moves between networked systems.
- IPv4 address format
- A 32-bit address written as four decimal octets separated by dots, each octet ranging from 0 to 255, for example 192.168.1.1.
- DNS function
- The Domain Name System translates human-readable domain names such as example.com into numeric IP addresses used for routing network traffic.
- Default gateway
- The router interface on a local network to which a host sends packets destined for addresses outside its own subnet.
- Mesh topology links
- In a full mesh, every node connects directly to every other node. The number of links equals n(n-1)/2 for n nodes.
- HTTPS port number
- Hypertext Transfer Protocol Secure uses TCP port 443 by default, whereas plain HTTP uses port 80.
- Absolute cell reference
- An Excel reference written with dollar signs, such as $A$1, that stays fixed when a formula is copied to other cells.
- Mail merge
- A word-processing feature combining a main document with a data source to generate many personalised copies, such as letters or labels.
- Excel SUM function
- A built-in function that adds a range of numeric cells, written as =SUM(A1:A10), returning the total of the specified values.
- Gross typing speed
- Gross words per minute equals total characters typed divided by five, then divided by elapsed minutes. Accuracy is reported separately.
- CSV file format
- Comma-Separated Values: a plain-text format storing tabular data with one record per line and fields separated by commas.
- Rajasthan formation date
- Rajasthan was formed on 30 March 1949 through the merger of princely states, and it is India's largest state by geographical area.
- Aravalli Range
- A mountain range running southwest to northeast across Rajasthan, among the world's oldest fold mountains, separating the Thar Desert from eastern plains.
- Sambhar Lake
- A large saline lake in Rajasthan near Jaipur, India's largest inland salt lake and an important source of salt production.
- Chambal River
- A major river of Rajasthan and a tributary of the Yamuna, notable as the state's only perennial river and known for its ravines.
- Ghoomar dance
- A traditional Rajasthani folk dance performed by women in swirling ghagras, associated with the Bhil community and royal courts of Rajasthan.
- Indira Gandhi Canal
- A major irrigation canal in western Rajasthan drawing water from the Sutlej-Beas system, transforming agriculture in desert districts like Bikaner and Jaisalmer.
- संधि की परिभाषा
- दो वर्णों के मेल से उत्पन्न परिवर्तन को संधि कहते हैं। यह स्वर, व्यंजन और विसर्ग तीन प्रकार की होती है।
- मुहावरा
- ऐसा वाक्यांश जो अपने शब्दों के सीधे अर्थ के बजाय लाक्षणिक अर्थ देता है, जैसे 'नौ दो ग्यारह होना' का अर्थ भाग जाना है।
- विलोम शब्द
- वे शब्द जिनका अर्थ एक-दूसरे के विपरीत होता है, विलोम या विपरीतार्थक शब्द कहलाते हैं, जैसे दिन का विलोम रात है।
- Parts of speech
- Eight English word classes: noun, pronoun, verb, adjective, adverb, preposition, conjunction and interjection, classified by grammatical function in a sentence.
- Active to passive voice
- The object becomes the subject, the verb changes to a form of be plus past participle, and the original subject appears after by.
- Subject-verb agreement
- A grammatical rule requiring the verb to match its subject in number and person, so a singular subject takes a singular verb form.