A candidate for the examination of computer operator conducted by Lok Sewa Ayog is expected to have the general knowledge about the following topics:
History of Computer
Definition of computer, hardware, software and their types, major milestones and key personalities in the history of computers is required. You should be familiar with the personalities such as Charles Babbage, Blaise Pascal, Lady Augusta Ada Lovelace, Dr. Herman Hollerieth, Joseph Jacquard, J. P. Eckert and so on.
What a generation means, Different generation of computers with their features, limitations and major innovations. The generation on which some important computers such as ENIAC, EDSAC, IBM1401, CDC1640 does fall in.
Types of Computers
The different types of computer based on different classification criteria should be learnt. Familiarity with Super Computers, Mainframe computers, Mini Computers, Micro Computers, Laptop, Notebook, Palmtop Computers, Analog, Digital, Hybrid Computers, IBM PC, Apple/Macintosh, IBM Compatibles, Workstations, Smart Cards are required
You should know about the keyboards, mouse, scanners, microphone, OCR, Joysticks, Light Pen, Touch Screens, BCR and some general idea how they work is required.
The general operation idea on Monitor, printers, plotter, projectors, speakers and their types are required.
Background information on memory, types of memory, RAM, ROM, magnetic tape, cassettes, cartridges, disks, floppies, hard disks, compact disks, super disks, zip disks, DVDs, their features, drawbacks are necessary.
Computer System and its Architecture
Input Unit, Output Unit, Processing Unit, ALU, CU, MU, connection devices such as MODEM, NIC Cards, Bridges, Gateways, Routers should be studied. You should know what does transmission speed, data compression, error correction means.
You need to study the definition, types of software, system, application and utility software, programming languages, machine language, assembly, and high level language, advantages/disadvantages of different level of languages, language processors such as interpreters, compilers, and assemblers.
Know what is virus, history of viruses, types of viruses such as Time bomb, Logical bomb, Trojan horses, worms etc. How you can detect virus and control the infection. You should know the safety measures and precautions from viruses.
IT Policy Nepal
Though questions are rarely asked from this topic but general idea and awareness about IT Policy of Nepal is preferable for a candidate of computer operator examination.
General concept, network services, classes of network such as LAN, MAN, WAN, advantages and drawbacks of networks, network security. You should be aware of intranets, extranets, topologies such as bus, ring, star and hybrid topologies, transmission media such as co-axial, UTP, STP, Fiber Optics, protocols,
Internet and Email
You should prepare yourself making familiar with history of internet, its development and different internet services. You should be able to operate and handle emailing, POP mail, Web Mail etc. You should know the words such as WWW, Domain name, web hosting, ftp, pop, smtp, uploading, downloading, dial up connection, broadband connection, ADSL, search engines, yahoo mail, hotmail etc.