Computer Awareness and Basic Agriculture/Land Revenue Concepts
Computer Awareness and Basic Agriculture/Land Revenue Concepts is a mixed domain. Computer questions cover hardware, software, memory, internet and office shortcuts. Agriculture and revenue questions cover Punjab's crop cycle and the land-record vocabulary used by a Patwari.
Computer basics
CPU is the processing unit; RAM is volatile working memory; ROM is non-volatile. Input devices include keyboard and scanner; output devices include monitor and printer. The operating system manages hardware and files. The Internet is the network; the World Wide Web is a service on it. Email needs an address, subject and message; never share passwords or open unknown attachments.
Land records
Punjab land administration works under the Punjab Land Revenue Act, 1887. The Patwari maintains village records; the kanungo supervises a circle; the tehsildar is the tehsil revenue officer. A khasra number identifies a plot; khatauni is the cultivator's account; jamabandi is the record of rights; girdawari records crop inspection; mutation (intiqal) records transfer of title; shajra nasab is the family tree. Common units: 1 marla = 272.25 sq ft, 1 kanal = 20 marla, 1 acre = 8 kanal = 160 marla, 1 hectare = 2.47 acres.
Worked example
Convert 2.5 acres to kanal. Since 1 acre = 8 kanal, 2.5 × 8 = 20 kanal. In marla, 20 × 20 = 400 marla. The reasoning is unit cancellation, not a guess.
Traps
Do not confuse khasra (plot) with khatauni (account); do not treat girdawari as a title document; do not use 1 acre = 4 kanal in Punjab; and do not call RAM non-volatile.