202 1 office level 2 compulsory knowledge points must be tested
Office level 2 compulsory knowledge 1, the first computer:1946 February 14, Moore School of Electrical Engineering, University of Pennsylvania, USA? The world's first modern electronic computer "Eniac”ENIACT was born, weighing 30t. It can perform 5000 additions and 500 multiplications in 15.
2. The four generations of computers are: electron tube computers, transistor computers, small and medium-sized integrated circuit computers, large-scale and ultra-large-scale integrated circuit computers.
3. Computer applications: numerical calculation, data processing, real-time control, computer-aided design CAD, computer-aided teaching CAI, computer-aided manufacturing CAM, etc. (CIMS) is a computer/integrated manufacturing system.
4. Von Neumann: The hardware core of the concept of binary and stored program control consists of five parts: arithmetic unit, controller, memory, input device and output device. Arithmetic unit and controller are collectively called central processing unit (CPU).
5. Microcomputer host: generally including CPU, memory, I/O interface circuit and system bus.
6. Storage capacity: The storage capacity of a computer is represented by byte (b). In addition to expressing storage capacity in bytes, it can also be expressed in KB, MB, GB, etc. 1B = 8bit 1KB = 1024 b； 1MB = 1024KB； 1GB= 1024MB .
7.ASCI？ The ASCI code of a character usually occupies one byte and consists of seven binary digits, so the ASCI code can represent 128 different symbols at most (or a byte with the highest bit of "0"). For example, the numbers 0~9 are represented by ASC codes as 30H~39H, the ASCI codes of capital letters A~Z are 4 1H~5AH, H represents hexadecimal, B represents binary and D represents decimal. control character
Examination time and examination structure of officers II 1, examination time: 120 minutes (2 hours)
2. Examination type: computer operation (total score 100, 60 points qualified)
3. Multiple choice questions: 20 points (basic knowledge 10)
Note: Multiple choice questions can only be entered once! !
4, operation questions: word processing, spreadsheets, presentations.
1) word processing, 30 points.
2) Spreadsheet, 30 points
3) Statement, 20 points
The rules of the examination room that students should pay attention to in the second-level office examination are 1. Candidates should wait in the waiting room 30 minutes before the exam, and the staff will check the candidates' admission ticket and valid identity documents. Candidates enter the examination room with the admission ticket and valid identity documents, and no one is allowed to take the exam.
2. Candidates are only allowed to bring necessary test stationery, such as pens and ballpoint pens, into the examination room. They are not allowed to bring books, materials, disks, mobile phones and other communication tools, calculators, notebook computers, PDA and other auxiliary tools and other mobile items.
3. Before the candidates enter the venue, draw lots to determine the seat (machine number). Candidates should be seated accordingly after admission, and put the admission ticket and valid ID card on the table.
4. After the invigilator announces the official start of the examination, the late candidates are not allowed to enter the examination room.
Candidates must keep the examination room quiet and strictly observe the discipline of the examination room. Those who violate the provisions of the examination room, disobey the management of the invigilator and cheat shall be dealt with in violation of the provisions of the examination room and the examination results shall be cancelled.
6. After the candidates answer the questions, raise their hands and contact the invigilator. The invigilator will leave after confirming that the candidates' data has recovered correctly.
7. Candidates are forbidden to copy information about the exam when taking the exam.
8. Don't be late for the exam. You must arrive at the examination room in advance and wait for the exam.