帮我翻译一下这几个句子

1．Because the user✀s sense of time is much slower than the processing speed of computer, time-slice multitasking operations seem to be simultaneous.2．A programming language is any artificial language that can be used to write a sequence of instructions that can ultimately be processed and executed by a computer.3．An operating system has three major function: coordinating and manipulating computer hardware, organizing files on a variety of storage media, and managing hardware errors and the loss of data.